Article
Engineering, Manufacturing
Haifei Lu, Weiwei Deng, Kaiyu Luo, Yuhua Chen, Jian Wang, Jinzhong Lu
Summary: An innovative hybrid additive manufacturing (HAM) technology combining laser shock peening without coating (LSPwC) and laser powder bed fusion (LPBF) has been proposed to tailor the microstructure of additively manufactured Ti6Al4V titanium alloys. The experimental results demonstrated that the martensitic laths in the LSPwC-treated region changed to equiaxed ultrafine grains under alternating mechanical and thermal effects. Consequently, compared with the LPBF specimen, the HAM specimen indicated a high ultimate tensile strength of -1303 MPa and an excellent elongation of -12.7 %.
ADDITIVE MANUFACTURING
(2023)
Article
Engineering, Mechanical
Xiaotai Feng, Xinlei Pan, Weifeng He, Ping Liu, Zhibin An, Liucheng Zhou
Summary: The study successfully applied warm laser shock peening (WLSP) technology as a post weld treatment to significantly increase the resistance of welded components to vibration failure. The high cycle vibration fatigue limit was improved by 42.3% through the introduction of high amplitude compressive residual stress, high stability of compressive residual stress, and surface nanostructure induced by WLSP.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Chemistry, Physical
Xinlei Pan, Xuede Wang, Zeng Tian, Weifeng He, Xiaosong Shi, Peiming Chen, Liucheng Zhou
Summary: This paper systematically investigated the DRX mechanism and its effects on grain refinement in Ti6Al4V titanium alloy subjected to LSP using EBSD and TEM characterization. The results showed that the DRX mechanism induced by shear bands played a vital role in texture transition and grain refinement during LSP.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Mechanical
Zhao Wang, Wanting Zhou, Kaiyu Luo, Haifei Lu, Jinzhong Lu
Summary: The role of laser shock peening (LSP) on the thermomechanical fatigue properties of Ti6Al4V titanium alloy was studied. The effects of LSP with different coverage layers on the microstructural evolution, residual stresses distribution, and thermomechanical fatigue lives were analyzed. Results showed significant improvement in thermomechanical fatigue lives and changes in crack initiation locations and fracture surface features. LSP-induced plastic deformation, residual stresses, and grain refinement were identified as key factors contributing to the improved thermomechanical fatigue properties.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Materials Science, Coatings & Films
Hepeng Zhang, Zhongyi Cai, Jiaxuan Chi, Rujian Sun, Zhigang Che, Luchan Lin, Peng Peng, Hongqiang Zhang, Wei Guo
Summary: In this study, the microstructures at different depths of Ti6Al4V alloy induced by LSP were comprehensively characterized using TEM, EBSD and XRD. It was found that LSP could introduce a gradient microstructure in the surface layer and the evolution mechanism of this gradient microstructure was elucidated. The intrinsic relationship between the gradient microstructure and mechanical properties was explored and the synergistic strengthening mechanism was revealed.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Jacek Grabarczyk, Justyna Gaj, Bartosz Pazik, Witold Kaczorowski, Bartlomiej Januszewicz
Summary: A combined surface modification method involving the deposition of carbon coating on thermally treated titanium alloy was proposed in this study. The oxidized and then DLC-coated samples showed the most outstanding results, enhancing low surface friction and coating durability, while maintaining high corrosion resistance.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Materials Science, Coatings & Films
Hairong Bian, Zhao Wang, Jiajun Liu, Haifei Lu, Kaiyu Luo, Jinzhong Lu
Summary: The effect of laser shock peening (LSP) on the microstructural evolution and thermal corrosion behaviors of laser powder bed fusion processed (LPBFed) Ti6Al4V samples in mixed solutions was studied. It was found that LSPed samples exhibited a thinner and denser thermal corrosion layer compared to LPBFed samples, leading to significantly reduced mass gain and improved thermal corrosion resistance. This improvement can be attributed to the presence of refined grains, high-density dislocations, and nano-twins. The mechanism of improved thermal corrosion resistance in LSPed Ti6Al4V alloy was revealed.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Sheng Huang, Zhenjia Qi, Anfeng Zhang, Xiaoyu Zhang, Qingyu Li, Dichen Li
Summary: This study examines the microstructure and mechanical properties of directed energy deposited Ti6Al4V alloy after inter-layer ultrasonic impact peening and heat treatment. The results demonstrate that the anisotropy of mechanical properties can be reduced by breaking columnar prior-beta grains and spheroidizing primary alpha phases through heat treatment.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Guangzhi He, Chengkai Qian, Zhipeng Cai, Kejian Li, Qu Liu, Jianfeng Yan
Summary: Laser shock peening combined with pulse magnetic field is proposed as a new strategy to improve the uniformity of mechanical properties and microstructures in metallic materials. The integration, called magnetic field-assisted laser shock peening (MFLSP), leads to uniform grain refinement and surface hardness. This is achieved by dispersing dislocation lines from low-angle grain boundaries to the intragranular area through the stimulation of magnetic fields. The enhanced grain refinement results in uniform surface hardening, making it a valuable approach to adjust the mechanical properties of metallic materials.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Junming Luo, Weiqing Tang, Shiyu Cui
Summary: Laser shock peening was used to prepare a composite coating on the surface of a titanium alloy, and the effects on the microstructure, phase structure, adhesion, hardness, corrosion resistance, and wear resistance were studied. The results showed significant improvements in the properties of the coating after laser shock peening treatment.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
C. J. Rietema, J. D. Roehling, W. L. Smith, K. M. Bertsch
Summary: This study explores the use of layer-by-layer large area surface annealing with a secondary diode laser to control the microstructure of Ti6Al4V. The results show that by selecting appropriate annealing temperatures, more ductile dual-phase α/β Ti6Al4V can be induced below the annealed surface, reducing material brittleness.
SCRIPTA MATERIALIA
(2024)
Article
Chemistry, Physical
Niroj Maharjan, Thivyaa Ramesh, Zichen Wang
Summary: Industrial laser shock peening (LSP) is gradually moving away from using protective overlay as it is inefficient for production. However, peening of titanium alloys still requires protective coating. In this study, uncoated LSP of Ti6Al4V alloy was investigated and found to generate a thin oxide layer and a brittle alpha layer on the surface. Even though similar compressive residual stress was achieved as coated LSP, the fatigue performance did not improve due to microcracks in the alpha layer. Abrasive grinding to remove the alpha layer significantly increased fatigue life.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Zhao Wang, Hairong Bian, Haifei Lu, Guangyi Ma, Dongjiang Wu, Kaiyu Luo, Jinzhong Lu
Summary: In this study, the influence of heat treatment and laser shock peening on the properties of LPBFed Ti6Al4V alloy were investigated. Results showed that the combination of heat treatment and laser shock peening significantly improved the strength, toughness and isotropy of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Hepeng Zhang, Zhongyi Cai, Jiaxuan Chi, Rujian Sun, Zhigang Che, Hongqiang Zhang, Wei Guo
Summary: This study investigated the fatigue crack growth behavior in residual stress fields induced by laser shock peening (LSP) on Ti6Al4V titanium alloy and found that LSP significantly extended the fatigue life. The significant crack retardation observed at high compressive stress levels was attributed to the reduction of local stress. The superposition principle combined with the weight function method was used to predict the fatigue crack growth rate in residual stress fields.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Zhichen Guan, Kun Huo, Wei Qian, Zhibao Li, Ruifang Chen, Fengze Dai, Shikun Zou, Yinqun Hua, Jie Cai
Summary: In this study, laser shock peening (LSP) combined with low-temperature annealing (LTA) was used to manipulate the microstructures of Ti6Al4V, resulting in an optimal combination of strength and plasticity. LSP treatment induced plastic deformation and grain refinement, forming non-equilibrium grain boundaries (GBs). LTA treatment decreased dislocation density and facilitated element diffusion, leading to the formation of GBs with low excess energy and increased microstructural stability. The combined post-treatment of LSP and LTA resulted in Ti6Al4V with high tensile strength (994 MPa) and excellent elongation (17.4%).
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Gang Xu, Liujun Wu, Youyu Su, Zhanfeng Wang, Kaiyu Luo, Jinzhong Lu
Summary: In this paper, two types of 316L/Ti6Al4V functionally graded materials (FGMs) were manufactured using directed energy deposition (DED) technique with different sets of laser power. The microstructure, microhardness, and tensile properties of these FGMs were investigated. Results showed that FGM deposited with gradient power exhibited higher tensile strength due to smaller grains and fewer FeTi-based multicomponent composite intermetallic compounds. The microhardness also increased with the increasing content of 316L powder in both types of specimens. The effects of microstructure, including phases and grains, on the tensile properties of FGMs deposited with constant/gradient laser power were elucidated.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Zhao Wang, Haifei Lu, Jie Cai, Liujun Wu, Kaiyu Luo, Jinzhong Lu
Summary: The effects of MLSPT on the microstructural evolution and stress corrosion behavior of X70 pipeline steel in hydrogen sulfide solutions were investigated, and it was found that MLSPT can generate nanocrystallines and refined microstructures in the near-surface layer, significantly improving stress corrosion crack resistance.
Article
Chemistry, Physical
Jiming Lv, Kaiyu Luo, Haifei Lu, Zhao Wang, Jiajun Liu, Jinzhong Lu
Summary: This research investigated the influences of laser shock peening (LSP) on the residual stress state, microstructures, and mechanical properties of Ti-6Al-4V alloy fabricated by selective laser melting (SLM). The results showed that LSP treatment adjusted the residual stress from tensile to compressive state and promoted the formation of high-density dislocations and parallel nano mechanical twins (nano-MTs) in the coarse lamellar alpha' structures, resulting in grain refinement. The ultimate tensile strength and elongation of the SLMed Ti-6Al-4V alloy increased by approximately 14.3% and 18.3% after LSP treatment, respectively. The study revealed that the combination of high levels of compressive residual stress and grain refinement achieved by LSP contributed to the enhancement of both strength and ductility in the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Zhanfeng Wang, Junjie Zhang, Jinzhong Lu
Summary: This study investigates the deformation mechanisms of single crystal and bicrystal Cu workpieces under nanoindentation through experiments and molecular dynamics simulations. The results highlight the significant role of dislocation-grain boundary interactions and crystallographic orientation on the mechanical response of the materials.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Engineering, Mechanical
Zhanfeng Wang, Junjie Zhang, Jinzhong Lu
Summary: Crystallographic orientations and grain boundaries have significant effects on the friction and wear performance of polycrystalline materials. This study used experiments and simulations to show the underlying effect of crystallographic orientations and grain boundaries on the nanoscratching behavior of bi-crystal Cu.
Article
Nanoscience & Nanotechnology
Jiming Lv, Igor V. Alexandrov, Kaiyu Luo, Haifei Lu, Jinzhong Lu
Summary: Arc-based cold metal transfer additive manufacturing (CMTAM) technology is an effective method for constructing large metallic components. This study investigated the effects of double-sided ultrasonic impact treatment (UIT) on CMTAMed Ti6Al4V alloy, and found that UIT reduced surface roughness, converted residual stress, stimulated grain refinement, and reduced the anisotropy of tensile properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Coatings & Films
Feifei Ji, Zhao Wang, Liujun Wu, Kaiyu Luo, Jinzhong Lu
Summary: This study investigates the response of the Ti6Al4V alloy to different coverage layers of laser shock peening (LSP) and the strain rate dependence of its tensile properties. Uniaxial tensile tests were conducted on Ti6Al4V alloy specimens with different coverage layers subjected to LSP at varying strain rates. The results reveal that the tensile properties and fracture behaviors of the Ti6Al4V alloy depend strongly on the strain rate. The ultimate tensile strength and total elongation exhibit reverse trends with increasing strain rates and coverage layers. The deformation behavior gradually evolves from typical ductility to mixed ductility/cleavage fracture.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Hongmei Zhang, Jinzhong Lu, Gang Xu, Kaiyu Luo, Ilya Okulov, Wei Xue
Summary: Nickel matrix composites reinforced with WC particles were fabricated using the island strategy with varying island scan length. The results showed that increasing the scan length improved mechanical properties, but excessively long scan lengths led to unstable thermal behavior and affected the microstructure and performance of the materials.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Manufacturing
Haifei Lu, Weiwei Deng, Kaiyu Luo, Yuhua Chen, Jian Wang, Jinzhong Lu
Summary: An innovative hybrid additive manufacturing (HAM) technology combining laser shock peening without coating (LSPwC) and laser powder bed fusion (LPBF) has been proposed to tailor the microstructure of additively manufactured Ti6Al4V titanium alloys. The experimental results demonstrated that the martensitic laths in the LSPwC-treated region changed to equiaxed ultrafine grains under alternating mechanical and thermal effects. Consequently, compared with the LPBF specimen, the HAM specimen indicated a high ultimate tensile strength of -1303 MPa and an excellent elongation of -12.7 %.
ADDITIVE MANUFACTURING
(2023)
Article
Nanoscience & Nanotechnology
Zhao Wang, Hairong Bian, Haifei Lu, Guangyi Ma, Dongjiang Wu, Kaiyu Luo, Jinzhong Lu
Summary: In this study, the influence of heat treatment and laser shock peening on the properties of LPBFed Ti6Al4V alloy were investigated. Results showed that the combination of heat treatment and laser shock peening significantly improved the strength, toughness and isotropy of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Liujun Wu, Xiaojun Tang, Jinfang Liu, Weiwei Deng, Jialong Du, Kaiyu Luo, Jie Cai, Jinzhong Lu
Summary: In this study, a method called laser shock peening (LSP) was proposed to overcome the trade-off between strength and ductility of magnesium alloy. By inducing a plastic strain-induced gradient nanostructure along the depth direction, the alloy exhibited improved ultimate tensile strength by 12% and reduced tensile ductility by 3%. The deformation mechanisms of the gradient nanostructure at different deformation stages were also explored.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Mechanical
Weiwei Deng, Changyu Wang, Haifei Lu, Xiang Xu, Kaiyu Luo, Jinzhong Lu
Summary: The fatigue properties and plastic deformation-induced gradient nanostructures of 2Cr13 martensitic stainless steel subjected to laser shock peening (LSP) were investigated. The influences of LSP on fatigue crack initiation and growth were systematically analyzed by studying the residual stresses and microstructural evolution. Results showed significant improvements in fatigue crack initiation life and fatigue lives of 2Cr13 stainless steel after LSP treatments. The microstructures of LSP-treated specimens were characterized by transmission electron microscopy, revealing the activation and acceleration of dynamic recrystallization process.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Engineering, Mechanical
Zhao Wang, Wanting Zhou, Kaiyu Luo, Haifei Lu, Jinzhong Lu
Summary: The role of laser shock peening (LSP) on the thermomechanical fatigue properties of Ti6Al4V titanium alloy was studied. The effects of LSP with different coverage layers on the microstructural evolution, residual stresses distribution, and thermomechanical fatigue lives were analyzed. Results showed significant improvement in thermomechanical fatigue lives and changes in crack initiation locations and fracture surface features. LSP-induced plastic deformation, residual stresses, and grain refinement were identified as key factors contributing to the improved thermomechanical fatigue properties.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Review
Engineering, Manufacturing
Weiwei Deng, Changyu Wang, Haifei Lu, Xiankai Meng, Zhao Wang, Jiming Lv, Kaiyu Luo, Jinzhong Lu
Summary: Grain refinement and arrangement is an effective strategy to enhance the properties of metallic components, and laser shock peening (LSP) is a promising surface deformation method. However, there is a lack of comprehensive understanding of the microstructural evolution and mechanical properties induced by LSP in the past two decades. This study summarizes the unique microstructural features and grain refinement mechanisms induced by LSP in three crystal structures, and introduces emerging hybrid LSP technologies and their industrial applications. The challenges and future trends are also discussed.
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2023)
Article
Materials Science, Multidisciplinary
Zhichao Shang, Xiaoping Cai, Farshid Pahlevani, Yan Zheng, Akbar Hojjati-Najafabadi, Xinran Gao, Baojing Zhang, Peizhong Feng
Summary: High porosity Co-Al-Fe intermetallics with 3D-microstructures were successfully synthesized in one step via a thermal explosion reaction. The link between pore structure and permeability was investigated using 3D-XRM technology. The corrosion resistance of the samples with different Fe contents was studied at 900 degrees C under an oxygen/sulphur atmosphere for up to 120 h. The results showed that the samples maintained stable pore structure and intact internal matrices, attributed to the formation of a thin protective layer on the surface. In addition, inward diffusion of S resulted in the formation of FeS nodules.
Article
Materials Science, Multidisciplinary
Lian Ma, Hain Yang, Daquan Zhang, Wei Wu
Summary: In this study, an environmentally friendly volatile corrosion inhibitor, lysine salts (LA), was prepared between graphene oxide (GO) layers using an in situ intercalation technique. The corrosion inhibition effect of LA was evaluated, and it was found that LA-GO2 achieved a 99.3% corrosion inhibition efficiency after composition optimization. The inhibition of the electrochemical anodic process on the surface of mild steel was the main reason for the high corrosion inhibition efficiency of LA-GO2. The properties of the surface film on the corroded steel were also characterized in detail to understand the corrosion inhibition mechanism of LA-GO2.
Article
Materials Science, Multidisciplinary
Running Wang, Jiaping Zhang, Bing Liu, Jie Fei, Qiangang Fu
Summary: By introducing a tailored SiC-C interphase, the carbon fiber can be effectively protected, improving the mechanical and ablation properties of leading edge shaped C/C-ZrC-SiC composites.
Article
Materials Science, Multidisciplinary
Zihua Wang, Chijia Wang, Ruitao Wang, Jiapeng Deng, Kun Zhang, Yanji Zhu, Huaiyuan Wang
Summary: A robust anti-corrosive coating has been developed using functional fly ash, which demonstrates excellent corrosion resistance and improved mechanical properties. The coating achieves these enhancements through molecular cross-linking design and surface augmentation techniques, resulting in a significantly improved impedance modulus compared to pure polyurea coatings.
Article
Materials Science, Multidisciplinary
Haofei Sun, Meifeng Li, Hao Zhang, Jing Liu
Summary: The oxidation behavior of FeCrNi medium entropy alloy was investigated through experimental observations and density functional theory (DFT) calculations. The study found that at 900 degrees C, the alloy forms a desirable and continuous oxide layer, while at 1000 degrees C, the oxide layer becomes discontinuous with penetration of oxide. These observations highlight the significant role of phase structure in promoting the formation of protective oxide scales and influencing oxidation resistance.
Article
Materials Science, Multidisciplinary
Yang Li, Ke Ma, Jingjun Xu, Jingjing Li, Yueming Li, Yi Zhang, Jun Zuo, Meishuan Li
Summary: Cr2AlC diffusion barrier effectively blocks the diffusion of Ti, enhancing the stability and spalling resistance of the Al2O3 scales between NiCrAlY coating and TiAl alloy.
Article
Materials Science, Multidisciplinary
Weiyi Wang, Qinglin Pan, Xiangdong Wang, Bing Liu
Summary: By adding Ce, Sc, Y and Zr elements to Al-Mg-Si alloy, the microstructure of the alloy can be regulated, and the corrosion and heat resistance of the materials can be improved.
Article
Materials Science, Multidisciplinary
Andrea Cristoforetti, Javier Izquierdo, Ricardo M. Souto, Flavio Deflorian, Michele Fedel, Stefano Rossi
Summary: This study presents a new approach to studying the mechanism of filiform corrosion in organic coated steel using the scanning vibrating electrode technique (SVET) and micropotentiometry (potentiometric SECM). The electrochemical activity under the coating was evaluated by mapping the ionic current densities coming from artificial defects made in specific locations of the filament. Antimony tips were also used to investigate the pH changes associated with different corrosion reactions at the metal-paint interface. Local pH levels along the filament in the anodic and cathodic regions were determined.
Article
Materials Science, Multidisciplinary
Yang Gao, Dayun Sun, Zhu Liu, Shuo Cong, Rui Tang, Yanping Huang, Lefu Zhang, Xianglong Guo
Summary: The corrosion characteristics of a novel alumina-forming austenitic steel in high-pressure high-temperature water environment were studied. The addition of aluminum has a negative effect on the continuity of the alumina scale.
Article
Materials Science, Multidisciplinary
Negin Madelat, Benny Wouters, Peter Visser, Zahra Jiryaeisharahi, Kristof Marcoen, Shoshan T. Abrahami, Annick Hubin, Herman Terryn, Tom Hauffman
Summary: This work explores the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in organic coatings. An odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach is used to analyze the diffusion of ions independent from water uptake. The results show that a higher PVC leads to a more homogeneous coating structure, resulting in faster diffusion of ions and enhanced water uptake.
Article
Materials Science, Multidisciplinary
Eloa Lopes Maia, Serguei Gavrilov, Valentyn Tsisar, Kitty Baert, Iris De Graeve
Summary: The effect of pre-oxidation in air at 300-500°C on the initiation and development of liquid metal corrosion attack on 316L austenitic steel in static lead-bismuth eutectic (LBE) has been investigated. It was found that pre-formed oxide films can protect the surface against dissolution, while high temperature pre-oxidation leads to localized corrosion.
Article
Materials Science, Multidisciplinary
Baozhuang Sun, Qiuyu Wang, Yue Pan, Zhiyong Liu, Cuiwei Du, Xiaogang Li
Summary: In this study, a non-steady electrochemical model was established to investigate stress corrosion cracking (SCC). The model was verified using 304 SS with various microstructures, confirming its effectiveness in assessing SCC susceptibility.
Article
Materials Science, Multidisciplinary
Xingyu Xiao, Xinhua Liu, Zhilei Wang, Xuexu Xu, Mingying Chen, Jianxin Xie
Summary: The corrosion behavior and mechanisms of Cu-10Ni-X (Al, Fe, Mn, Cr, Sn, Ti, Zn) alloys in a 3.5% NaCl solution were systematically investigated. Both computational and experimental results revealed that except Ti, other elements could enhance the corrosion resistance of Cu2O passivation film.
Article
Materials Science, Multidisciplinary
Gen Zhang, Yan-Ping Huang, E. Jiang, Wei -Wei Liu, Hong Yang, Jing Xiong, Yong-Fu Zhao
Summary: The addition of aluminum has a significant influence on the intermetallic compounds in AFA alloys, particularly increasing the content of B2-NiAl phase. In the SCO2 environment, the oxide scales formed on AFA alloys with aluminum were thinner than on ASS without aluminum, and the structure of the oxide scales changed to a double-layer structure.
Article
Materials Science, Multidisciplinary
Yuxuan He, Guozheng Xiao, Chao Wang, Xuefeng Lu, Liuyuan Li, Shiying Liu, Yusheng Wu, Zhanjie Wang
Summary: The relationship between configurational entropy and lattice distortion in novel rare earth monosilicates was investigated, and the effect of configurational entropy on their properties was studied. The results showed that lattice distortion increased with the increase of configurational entropy, but a highly symmetrical crystal structure was formed when the configurational entropy was large enough, inhibiting the lattice distortion.
