Article
Materials Science, Multidisciplinary
Haoyang Jia, Zhengyou Guo, Ruizhi Wu, Shun Zhang
Summary: This study refined the grain size of Mg-14wt%Li alloy by adding 6% Sn and subsequent large strain rolling, resulting in the development of ultra-fine grained Mg-14Li-6Sn alloy with high strength and high ductility.
FRONTIERS IN MATERIALS
(2022)
Review
Metallurgy & Metallurgical Engineering
Zhong-Zheng Jin, Min Zha, Si-Qing Wang, Shi-Chao Wang, Cheng Wang, Hai-Long Jia, Hui-Yuan Wang
Summary: Magnesium alloys show promising potential as lightweight structural materials in transportation and aerospace fields due to their low density and high specific strength. However, most high-strength magnesium alloys exhibit poor formability and ductility at room temperature, limiting their applications. Recent research has focused on enhancing the ductility of magnesium alloys through alloying design strategies and microstructural control using advanced processing technologies.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Chuan Li, Abdul Malik, Faisal Nazeer, Umer Masood Chaudry, Jianyu Long, Yangwei Wang
Summary: Strength ductility tradeoff and in-plane isotropy under tensile loading are challenges in magnesium alloys. By fabricating a specific alloy and analyzing factors such as grain size, texture, and precipitates, a magnesium alloy with high strength, high elongation, strain hardenability, and excellent in-plane tensile isotropy can be achieved.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Nanoscience & Nanotechnology
Abhishek Pariyar, Laszlo S. Toth, Satish Kailas, Laurent Peltier
Summary: This study successfully addressed the issue of grain growth in Al-Mg alloy by introducing polymer derived ceramics, achieving a stable grain structure and minimal loss in hardness at high temperatures.
SCRIPTA MATERIALIA
(2021)
Article
Chemistry, Physical
Fei Liu, Zhiyi Liu, Guangyu He
Summary: The microstructure evolution and its effect on the strength properties and fatigue performance of the Al-Cu-Mg alloy have been investigated. The results show that refining Goss-oriented grains can improve the strength-ductility trade-off and reduce the fatigue crack propagation rate.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Zhi Zhang, Jinghuai Zhang, Jinshu Xie, Shujuan Liu, Yuying He, Kai Guan, Ruizhi Wu
Summary: A new low-alloyed Mg-2Sm-0.8Mn-0.6Ca-0.5Zn alloy is prepared by low-temperature and low-speed extrusion, which exhibits high strength but low ductility. After annealing, the alloy shows both high strength and high ductility due to the effective inhibition of grain growth by grain boundary co-segregation and decreased dislocation density. The evolution of immovable long dislocations towards new grain boundaries is a key factor for the remarkable increase of ductility in the annealed alloy.
SCRIPTA MATERIALIA
(2022)
Article
Chemistry, Physical
Z. H. Yin, X. W. Liu, N. Gao, S. R. Li, J. Q. Yao, Z. T. Fan, W. B. Zhang, Y. Z. Wang
Summary: Medium entropy alloys (MEAs) with a mixing entropy between 1R and 1.5R, such as NiCoFe alloy, show excellent specific strength and fracture toughness at 77 K. However, their coarse columnar microstructures result in poor mechanical properties. By adding C alone, the columnar to equiaxed transition (CET) can be achieved, with an average grain size of 210 μm for (NiCoFe)97C3 MEA. Further addition of Cr into the C-doping MEA leads to the interaction of C and Cr during solidification, resulting in a further reduction in grain size to 164 μm for the (NiCoFeCr0.25)97C3 MEA.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Zhibo Liu, Jiani Sun, Zhigang Yan, Yaojun Lin, Manping Liu, Hans J. Roven, Arne K. Dahle
Summary: This study focuses on improving the ductility of a cast Al-10 wt%Mg alloy by prolonging time and/or increasing temperature during solid-solution treatment to minimize the amount of the brittle Al3Mg2 phase. The amounts of Al3Mg2 decrease and the concentrations of solute Mg increase with prolonging time and/or increasing temperature, resulting in improved ductility and strength. Complete dissolution of the Al3Mg2 phase is achieved through solid-solution treatment at specific temperatures, leading to significant improvements in both ductility and strength.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Lintao Liu, Shengwen Bai, Bin Jiang, Chao He, Qinghang Wang, Jianxin Zhou, Liping Wei, Xiaoying Qian, Zhihua Dong, Guangsheng Huang, Dingfei Zhang, Fusheng Pan
Summary: In this study, a novel alloy designing concept is proposed to prepare a Mg alloy with excellent strength-ductility synergy by refining grain size and depressing intergranular deformation simultaneously. Through extrusion at 220 degrees C, an ultrafine microstructure is achieved in the basic alloy, Mg-1Sb-1Mn (SM11). The co-addition of Sn and Zn is then conducted to inhibit intergranular deformation and improve the mechanical properties of the alloy. The results show that the strength of the extruded Mg-1Sb-1Mn-1Sn-0.2Zn (SMTZ1110) alloy is significantly improved while maintaining a high ductility, suggesting a promising approach for the development of Mg alloys with a balanced strength-ductility combination.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Wuqiang He, Feng Liu, Liming Tan, Lan Huang, Yan Nie, Guowei Wang, Xin Zhan, Zijun Qin
Summary: Two nickel-base oxide dispersion strengthened (ODS) alloys with uniform and bimodal distribution of grains size were fabricated by mechanical alloying (MA) and hot extrusion (HEX). The bimodal-grained alloy showed a better combination of strength and ductility compared to the alloy with uniform grains size.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Qinghang Wang, Haowei Zhai, Lintao Liu, Zhaoyang Jin, Lingyu Zhao, Junjie He, Bin Jiang
Summary: A new Mg-1Bi-1Mn-0.3Zn (BMZ110) wrought alloy with dilute Zn addition and appropriate extrusion processing showed excellent strength-ductility synergy at room temperature. The addition of Zn refined the alloy's grain structure and weakened the basal texture intensity. Solute segregation at grain boundaries enhanced grain boundary cohesion, reducing crack formation and increasing ductility. Additionally, Zn incorporation into Mg3Bi2 phases increased their nucleation rate and refined their sizes. The presence of Zn also increased the alloy's resistance to grain growth during annealing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Wei Fu, Pengfei Dang, Shengwu Guo, Zijun Ren, Daqing Fang, Xiangdong Ding, Jun Sun
Summary: A heterogeneous fiberous Mg-5.6Zn-0.6Zr alloy with high strength and strain was reported, attributed to the alternating coarse-and-fine-grain layers and slip transfer mechanism. The heterogeneous microstructure design is of great significance for improving the mechanical properties of hexagonal close-packed metals.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Metallurgy & Metallurgical Engineering
Guang-lin Gu, Xiang-nan Ke, Fa-ping Hu, Shu-jie Zhao, Guo-bin Wei, Yan Yang, Xiao-dong Peng, Wei-dong Xie
Summary: In this study, Mg-1Mn-0.5Al-0.5Ca-0.5Zn alloy was fabricated and fine recrystallized grains were obtained through extrusion and aging treatment. The area fraction of Al-Ca particles in the alloy increased after peak aging, and the presence of (a) and (c+a) dislocations was observed. The alloy exhibited high strength and good ductility.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Bingyu Qian, Haipeng Zheng, Ruizhi Wu, Legan Hou, Jinghuai Zhang, Jianfeng Sun
Summary: Mg-14Li-3Al-2Gd sheets were prepared by four-layer accumulative roll bonding (FARB) process and the grain size was refined through continuous dynamic recrystallization (CDRX) mechanism. The introduction of interlayer interfaces during FARB process significantly affected the CDRX behavior, with the interface spacing decreasing as the FARB cycles increased. The small interface spacing resulted in the formation of lath-shaped substructures, while large interface spacing led to the formation of equiaxed substructures and division of deformed grains.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Materials Science, Multidisciplinary
Xingyu Pan, Chunlei Qiu
Summary: The addition of 5% Cr3C2 particles into AlCoCrFeNi high entropy alloy enabled full columnar-to-equiaxed grain transition and significant grain refinement during the process of selective laser melting.
MATERIALS RESEARCH LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Shuai Zhang, Shuye Zhang, Hongzhi Zhou, Kyung-Wook Paik, Tianran Ding, Weimin Long, Sujuan Zhong, Peng He
Summary: Microwave Hybrid Heating (MHH) is a promising method for material joining, allowing for selective and uniform heating. This experimental study focused on investigating the characteristics and reliability of joints made using nano-Sn-3.0Ag-0.5Cu soldering paste and MHH technique. The research findings showed that the shear strength of the joints reached its peak value under specific microwave power and exposure time, but decreased after thermal shock tests.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Peibin Ma, Mingyang Wang, Aiying Chen, Lijian Gu, Zhiyi Ding, Xiaogui Wang, Bin Gan
Summary: Nano-twinned boundaries in high-temperature alloys play a crucial role in regulating the distribution of nano-precipitates and enhancing mechanical properties.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Jiachen Zhang, Fan Lu, Xinxin Liu, Taiwen Huang, Rui Li, Changsheng Tan, Guojun Zhang, Lin Liu
Summary: This study investigates the effects of Re and Ta interactions on the precipitation of the TCP phase in experimental alloys under long-term thermal exposure. The study finds that microstructure segregation is not fully eliminated even with standard heat treatment, and the interaction between Re and Ta enhances the formation of the TCP phase. Thermodynamic calculations and first-principles analysis reveal that Re significantly improves the driving force of TCP phase precipitation. The study also observes a phase transition from the sigma-phase to the P-phase, with Ni playing a crucial role in the diffusion process.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Ronit Roy, Adil Shaik, Matthew Topping, Fei Long, Mark R. Daymond
Summary: This study demonstrates the improvements in characterizing localized dislocation distribution using the HR-EBSD method compared to the conventional approach. Two extreme examples of deformation conditions were investigated to show the efficacy of HR-EBSD in identifying dislocations and subtle features. The direct correlation between slip bands and HR-EBSD estimated GNDs is also presented, enhancing the scope of this approach in identifying individual slip bands.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Wenshan Guo, Hui Zhang, Qingjun Zhou, Guangchun Xiao, Ning Guo, Wei Zhao, Gang Wang
Summary: The microstructures and corrosion resistance of TC11 components were significantly improved using a high-power, high-speed laser metal deposition (LMD) process and subsequent post-heat treatment, with greater improvements observed in the deposition direction. The significant improvement of corrosion resistance in the deposition direction is mainly due to the weakening of the charged galvanic corrosion effect between the non-interlayer zone and interlayer zone.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Shuai Xu, Rui Cao, Junheng Gao, Yu Zhang, Haitao Zhao, Shuize Wang, Yuhe Huang, Guilin Wu, Honghui Wu, Chaolei Zhang, Xinping Mao
Summary: In this study, the microstructures and mechanical properties of interphase precipitation strengthening micro-alloyed steels were investigated. The addition of Cr was found to increase the yield strength without significant decrease of ductility. Thermodynamics analysis revealed that the addition of Cr led to grain refinement and decrease of sheet spacing of nanoprecipitates. Calculations showed that the decrease of interphase-precipitated carbides sheet spacing and the refinement of grain size were responsible for the strength enhancement of Cr microalloyed steel.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zhaoxin Zhong, Biao Zhang, Yuhan Ren, Jian Ye, Jiawei Zhang, Feng Ye
Summary: In this study, bioinspired web-liked multiphase composites were successfully constructed using boron-modified polysilazane polymer. The composites consisted of long TiB nanowires as 'web' and hybrid TiC and Ti3Si particles as 'nodes'. The enhanced strength of these composites was attributed to the synergistic load transfer of the hybrid reinforcements. This study provides a promising design approach for developing high-performance composites with high reinforcement content, utilizing polymer instead of traditional ceramic powder.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Geng Liu, Linran Yu, Jie Su, Ran Ding, Min Xiong, Qi Gao
Summary: In this study, a flash austenitization heat treatment approach was used to achieve a dual-phase microstructure consisting of retained austenite and fine-grained ferrite in low-carbon TRIP steel. Phase-field simulations revealed the acceleration of ferrite transition kinetics in the Mn-depleted region and the influence of chemical heterogeneity of C and Mn on the stabilization of austenite.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zhichao Yang, Dehui Zheng, Zhen Wang, Tingbin Liang, Shuangbao Wang
Summary: In this study, the configurations, formation process, and properties of the Cu-rich layer formed during TJE of Al alloys were revealed using aberration-corrected scanning TEM (STEM), STEM image simulations, and first-principles calculations. The results showed a new orientation relationship between the Cu-rich layer and Al matrix, and provided insights into the formation mechanisms of the Cu-rich layer and Cu diffusion zone.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Shuai Chen, Ruyu Tian, Jiayue Wen, Yanhong Tian
Summary: In this study, the interfacial microstructure evolution and reliability of Cu/Sn-3.0Ag-0.5Cu (SAC305)/Ni and Cu/Sn-3.0Ag-0.5Cu-0.05TiO2 (SAC305-0.05TiO2)/Ni interconnections under thermal shock were investigated. The results showed that the addition of TiO2 nanoparticles can suppress the growth of interfacial IMCs and improve the reliability of the connections.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Yunbin Lu, Yangju Feng, Wei Wang, Wenke Wang, Jianlei Yang, Wenzhen Chen, Guorong Cui, Dongdong Zhuang, Hongyang Cao
Summary: In order to improve the wear resistance of titanium alloy, titanium matrix composites with network distributed TiBw were fabricated. The results showed that the wear rate of the composites decreased by 17.2% at room temperature and 38.4% at high temperature compared to the TA15 alloy. The TiBw in the composites enhanced work hardening, improved thermal conductivity, and effectively hindered dislocation movement and promoted dynamic recrystallization during high-temperature wear.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Jubert Pasco, Lu Jiang, Thomas Dorin, Ali Keshavarzkermani, Youliang He, Clodualdo Aranas Jr
Summary: The unique structure and solute distribution of CoCrMo alloys produced using Laser Powder Bed Fusion technique require custom heat-treating processes to achieve the targeted phase distribution and mechanical properties. This study investigates the phase transformation behavior and precipitate distribution of CoCrMo samples after aging heat treatment. The results show differences in phase fraction and nucleation sites between directly aged and solution heat-treated samples.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zipeng Ma, Meng Zhou, Baohong Tian, Yi Zhang, Heng Li, Xu Li, Jin Zou, Haoyan Hu, Ke Jing, Yong Liu, Alex A. Volinsky
Summary: In this study, two electrical contact composites were prepared using the vacuum hot pressing sintering endo-oxidation method. The addition of Y2O3 had no negative effects on the electrical conductivity and hardness of the composites. Moreover, it reduced the welding force and arc energy, and improved the stability of the contacts.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Wei Sun, Ning Cui, Shuling Zhang, Tiewei Xu, Xiaopeng Wang, Fantao Kong
Summary: A laminated composite was successfully fabricated and its microstructure and mechanical properties were investigated. The composite exhibited high bonding strength, improved flexural strength and fracture toughness, and superior tensile properties compared to the monolithic alloy.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zih-You Wu, Yin-Ku Lee, Su-Yueh Tsai, Po-Yu Chen, Jenq-Gong Duh
Summary: With the development of the artificial intelligence (AI) industries, electronic packaging is advancing towards high density, high efficiency, and multi-functionality. The application of microbumps is necessary to achieve high density and small-scale interconnection. In this study, three types of full intermetallic compounds (IMCs) bumps were fabricated, and the mechanical and thermal properties of IMCs were analyzed. The results showed that the full IMCs bumps with added Ni and Zn exhibited consistent structure and excellent thermal stability, providing a reliable microstructure for application.
MATERIALS CHARACTERIZATION
(2024)