Article
Materials Science, Coatings & Films
Hanyu Wan, Heng Lu, Yunpeng Ren, Chao Ma, Yan Chen, Zhiduo Xin, Li Cheng, Kun He, Xincheng Tu, Qing Han, Yunxia Ye, Yufeng Tao, Xudong Ren
Summary: The effects of laser shock peening and vacuum carbonitriding on the strength and plasticity of 20Cr2Mn2Mo were investigated. The results showed that the compound treatment significantly increased the yield strength and ultimate tensile strength of the samples, while slightly decreasing the plasticity. The improvement in strength was mainly attributed to the formation of grain boundaries, high-density dislocations, and second-phase particles. The decrease in plasticity was influenced by the gradient structures induced by laser shock peening. Grain refinement had a minimal impact on the improvement in strength.
SURFACE & COATINGS TECHNOLOGY
(2022)
Review
Materials Science, Multidisciplinary
Merbin John, Alessandro M. Ralls, Udaya Bhat Kuruveri, Pradeep L. Menezes
Summary: This paper summarizes the research progress on the laser shock peening (LSP) technique for reducing economic losses caused by high friction, wear, and corrosion in industrial applications. LSP has been widely applied to control the coefficient of friction, wear rate, and corrosion, particularly in aerospace, automotive, biomedical, nuclear, and chemical fields.
Article
Engineering, Manufacturing
Haifei Lu, Liujun Wu, Huiliang Wei, Jie Cai, Kaiyu Luo, Xiang Xu, Jinzhong Lu
Summary: This study investigates the effects of interlayer laser shock peening treatment on the microstructural evolution and mechanical performance of Ti6Al4V alloy. The results show that this treatment significantly improves the microhardness and tensile property of the material by inhibiting the epitaxial growth of columnar grains and forming fine equiaxed grains.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Shuaipeng Qi, Hua Bao, Yongxing Shen
Summary: Laser shock peening (LSP) is an effective technology for improving fatigue life and resistance to foreign object damage in metals. However, it may cause spall fracture when applied to thin specimens. In this study, numerical simulations were conducted to investigate the spall fracture in Ti-17 alloy caused by LSP. The results demonstrate that the occurrence of spall fracture is influenced by the specimen thickness, peak pressure of the shock wave, and the number of shocks.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Optics
Angshuman Chattopadhyay, Gopinath Muvvala, Sagar Sarkar, Vikranth Racherla, Ashish Kumar Nath
Summary: In this study, laser beam welding of commercially pure titanium at different scan speeds was conducted to investigate its effects on thermal history, microstructure, residual stress, mechanical properties, and corrosion resistance. Laser shock peening induced compressive residual stress through plastic deformation, leading to improvements in tensile and fatigue properties. Corrosion resistance was also enhanced due to high compressive residual stress and grain refinement after laser shock peening.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Engineering, Chemical
Yaowen Chen, Yuanyuan Sheng, Ying Wang, Min Ji, Haijun Pan, Feichi Zhang, Lin Liu
Summary: In this study, the impact of laser shock peening (LSP) on the microstructure evolution and deformation mechanism of a lubricated brass surface layer was investigated. Prior to LSP treatment, fatigue and adhesive wear were the main wear mechanisms, but after LSP treatment, abrasive wear became dominant. The untreated brass layer exhibited poor tribological performance due to dislocation slip, while LSP treatment introduced mechanical twins, activating secondary twins during sliding and resulting in grain boundary expansion and nanoscale grain refinement. The worn brass with LSP showed an improved yield strength by 2.81 times, enhancing wear resistance.
Article
Engineering, Mechanical
Wujing Fu, Yongjiang Huang, Jianfei Sun, Alfonso H. W. Ngan
Summary: The present work demonstrates that laser shock peening (LSP) can significantly improve the mechanical properties of CrFeCoNiMn0.75Cu0.25 high entropy alloy (HEA). LSP-treated HEA samples achieve a yield strength more than two times that of as-cast alloys, attributed to the introduction of a gradient microstructure comprising subgrains, dense dislocations, and nano-twins near the treated surface. The combination of dislocation hardening and mechanical twinning leads to excellent plasticity during tensile loading. The results also indicate the possibility of developing gradient-structured HEAs with excellent mechanical properties using LSP.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Materials Science, Multidisciplinary
Fei Wang, Xueliang Yan, Lei Liu, Michael Nastasi, Yongfeng Lu, Bai Cui
Summary: This paper presents a novel process of high-temperature laser shock peening (HTLSP) for surface strengthening of single-crystal ceramics such as sapphire and discusses its fundamental mechanisms. By inducing high compressive residual stress on the surface of sapphire at 1200 degrees C, HTLSP can significantly improve the hardness and fracture toughness of the material.
MATERIALS RESEARCH LETTERS
(2021)
Article
Chemistry, Physical
Yongtao Bai, Hao Wang, Shuhong Wang, Yihui Huang, Yao Chen, Wenwu Zhang, Andreas Ostendorf, Xuhong Zhou
Summary: Nanosecond laser shock peening improves the life cycle performance of high-strength steel by inducing higher microhardness, corrosion resistance, and fatigue life through microstructures formation. Additionally, compressive residual stress can be found in the treated area to enhance the material properties.
APPLIED SURFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
W. W. Deng, H. F. Lu, Y. H. Xing, K. Y. Luo, J. Z. Lu
Summary: The effects of build direction and laser shock peening on the properties and microstructure of 316L stainless steel were investigated. The results showed that the strength and ductility of the stainless steel varied under different build angles and LSP treatments, with the sample fabricated at a 90-degree build angle and subjected to LSP having the best combination of strength and ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Engineering, Mechanical
Xuan Huang, Wenxin Zhu, Kai Chen, R. Lakshmi Narayan, Upadrasta Ramamurty, Liucheng Zhou, Weifeng He
Summary: This study investigates the microstructure changes in the surface layers of titanium subjected to laser shock peening (LSP) using electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). The results show different twin variants and dislocation densities induced by LSP, with twin density decreasing and dislocation density increasing with depth. Furthermore, the study finds that dislocations play a more significant role in the strengthening of the material compared to grain refinement. These findings are important for the design of alloys and the improvement of mechanical performance through LSP.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
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
Materials Science, Multidisciplinary
Zheng-Yang Li, Xiong-Wei Guo, Shi-Jia Yu, Chuang-Ming Ning, Yong-Jun Jiao, Zhen-Bing Cai
Summary: This study investigated the characterization and electrochemical corrosion behavior of zirconium alloy after low energy laser shock peening (LE-LSP) treatment. The results showed that LE-LSP treatment increased the surface roughness and hardness of the zirconium alloy, as well as formed a melting layer, plastic deformation layer, and transition layer on the surface. The electrochemical corrosion resistance of the zirconium alloy was improved after LE-LSP treatment.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Aixin Feng, Jian Zhao, Jinhao Lin, Xiaoming Pan, Huibin Feng, Changyu Wang, Zhengyuan Lu
Summary: The drawbead of the automobile covering parts mold plays a crucial role in the mold's lifespan and the quality of the parts produced. This study investigated the effect of laser quenching-shock peening strengthening on the organization, plastic deformation resistance, and wear resistance of Cr12MoV steel. The results showed that the microhardness and residual stress of the specimens were significantly improved after laser quenching-shock peening composite strengthening. Furthermore, the specimens exhibited enhanced nanohardness, modulus of elasticity, reduced coefficient of friction, and surface roughness, leading to improved resistance to plastic deformation and wear for Cr12MoV steel.
Article
Materials Science, Multidisciplinary
Dongsheng He, Liuhe Li, Jiaxuan Chi, Hepeng Zhang, Gongxuan Zhang, Guangzhi He, Jianfeng Yan, Hongqiang Zhang, Wei Guo
Summary: Phase transformation and microstructure change are important for improving the mechanical properties of Ti2AlNb alloys. Laser shock peening (LSP) can promote phase transformation by inducing high-density defects. LSP-induced defects reduce the thermodynamic barrier of phase transformation and facilitate lattice distortion and element diffusion.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Multidisciplinary
Haifei Lu, Zhao Wang, Jie Cai, Xiang Xu, Kaiyu Luo, Liujun Wu, Jinzhong Lu
Summary: The study revealed that laser shock peening treatment can effectively enhance the hot corrosion resistance of SLMed Ti6Al4V titanium alloy by generating high-density dislocations and nano-twins to enhance the grain boundary effect.
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
Materials Science, Multidisciplinary
Zhao Wang, Shu Huang, Haifei Lu, Jiajun Liu, Igor V. Alexandrov, Kaiyu Luo, Jinzhong Lu
Summary: The role of annealing heat treatment (AHT) in improving the high-temperature oxidation resistance of LPBFed Ti6Al4V alloy was investigated. AHT transformed the microstructure and released stresses, significantly improving the material's isotropy. Factors such as gradient compressive stress, microhardness, and dislocation structures played a crucial role in the high-temperature oxidation resistance.
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
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)