Article
Materials Science, Multidisciplinary
Jingwei Liang, Shibo Wu, Zhenglong Lei, Yanbin Chen, Xinrui Zhang, Bingwei Li, Meng Jiang, Yuan Chen
Summary: In this study, the effects of preheating temperature on the microstructure, mechanical properties, and corrosion resistance of a ZK60 Mg alloy processed by laser powder bed fusion (LPBF) were analyzed. The results showed that as the preheating temperature increases, the mechanical properties of the alloy improve, but the corrosion resistance first improves and then deteriorates. It was concluded that selecting an appropriate preheating temperature is crucial to obtain the desired mechanical properties and corrosion resistance.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Pengyu Lin, Yunting Guo, Zhihui Zhang, Qing Wang, Zhongxiong Kang, Hongxiu Yang, Luquan Ren
Summary: Selective laser surface remelting can modify the microstructure of AZ91D magnesium alloy and improve its corrosion resistance. Different treatment patterns can be used to tailor the electrochemical behavior and achieve good corrosion resistance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Pingli Jiang, Zihao Zeng, Ruiqing Hou, Di Mei, Shijie Zhu, Liguo Wanga, Shaokang Guan
Summary: In this study, a CaCO3 coating on Mg alloy was developed to control the corrosion of Mg2Zn0.2Ca alloy. The presence of MgSO4 in the coating preparation electrolyte affected the morphology and anti-corrosion property of the CaCO3 protective coating. Increasing the concentration of MgSO4 enhanced the corrosion protection property of the coating by increasing its compactness, but further increase in MgSO4 concentration led to a decrease in resistance for the Mg substrate.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Multidisciplinary
Ming Gao, Zheng Ma, Iniobong P. Etim, Li-Li Tan, Ke Yang
Summary: The study aimed to investigate the influence of microstructural evolution on mechanical and corrosion properties of Mg-2Zn-0.5Nd alloy during room-temperature drawing, and found that grain refinement and texture transformation significantly affected the mechanical and corrosion resistance of the alloy.
Article
Chemistry, Physical
WenHui Guo, Jingyuan Li, Mingfan Qi, Yuzhao Xu, Hamid Reza Ezatpour
Summary: The effects of heat treatment on the microstructure, mechanical properties, and corrosion resistance of AlCoCrFeNiTi0.5 high-entropy alloy were investigated. Heat treatment was found to refine the microstructure, improve mechanical properties, and influence the alloy's hardness and corrosion resistance significantly.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Chemistry, Multidisciplinary
Shiliang Zhang, Jing Jiang, Xianrui Zou, Ning Liu, Hongshui Wang, Lei Yang, Huan Zhou, Chunyong Liang
Summary: Magnesium (Mg) metals, as a promising lightweight structural material, have been widely used but are limited by their low corrosion resistance and poor mechanical properties. Laser surface treatment is a common approach to improve the mechanical strength and corrosion resistance of Mg metals. This article briefly describes the changes in surface organization and the creation of new structures through laser treatment on Mg surfaces, and reviews the effects on wettability, hardness, friction wear, degradation, biocompatibility, and mechanical properties. The limitations and development trends of laser treatment on Mg metals research are also discussed.
FRONTIERS IN CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Yabo Hu, Chaofang Dong, Decheng Kong, Jungang Ding, Xing He, Xiaoqing Ni, Liang Zhang, Xiaogang Li
Summary: Through heat treatment, the performance of the CoCrMoW alloy fabricated by selective laser melting can be improved, but different treatment conditions lead to different changes in the alloy properties. The changes in the microstructure of the alloy have a significant impact on its mechanical properties and corrosion resistance.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Chuan Xu, Xinjian Yuan
Summary: High frequency ultrasonic vibration was used for arc welding of MB3 Mg alloy to improve welding defects and microstructure issues. By optimizing experimental parameters, Mg alloy joints with favorable mechanical properties were obtained. However, excessive ultrasonic power could degrade tensile strength.
Article
Nanoscience & Nanotechnology
Ming Gao, Iniobong P. Etim, Ke Yang, Lili Tan, Zheng Ma
Summary: This study improved the microstructure and mechanical properties of ZN20 alloy wire by combined processing of ECAP, FSP, extrusion, and hot drawing, enhancing the tensile strength and ductility while decreasing the corrosion rate.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Mingfan Qi, Liangyu Wei, Yuzhao Xu, Jin Wang, Aisen Liu, Bing Hao, Jicheng Wang
Summary: This study investigated the effects of trace yttrium element on the microstructure, mechanical properties, and corrosion resistance of biological magnesium alloys. The results showed that the addition of yttrium resulted in a decrease in grain size, an increase in the volume fraction of the second phase, and improvements in mechanical properties and corrosion resistance.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Multidisciplinary Sciences
Qingchun Zhu, Yangxin Li, Fuyong Cao, Dong Qiu, Yao Yang, Jingya Wang, Huan Zhang, Tao Ying, Wenjiang Ding, Xiaoqin Zeng
Summary: The authors have developed a high-strength magnesium alloy with significantly improved mechanical properties and corrosion resistance. The alloy features a low corrosion rate, high yield strength, and moderate tensile elongation, making it competitive compared to other magnesium alloys. The development of a thin and dense protective film and refinement of grains contribute to the high strength and good ductility of the alloy. These findings are expected to inspire the design of next-generation high-performance magnesium alloys.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Yuzhao Xu, Jingyuan Li, Mingfan Qi, Wenhui Guo, Yue Deng
Summary: This study investigated the influence of extrusion temperature on the microstructure, mechanical properties, and corrosion behavior of ZGMS alloy. The results showed that lower extrusion temperature led to refined grain size and improved mechanical properties. The alloy exhibited excellent mechanical properties and low corrosion rate after extrusion at 360 degrees Celsius.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
A. R. Eivani, M. Mehdizade, S. Chabok, J. Zhou
Summary: Friction stir processing (FSP) was applied to WE43 magnesium alloy to improve its mechanical properties and corrosion resistance by refining grain structure and second-phase particle distribution. The study found that FSP significantly refined the grain structure and improved the uniform strain to maximum stress, strength, and corrosion resistance of the alloy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Yu Huang, Hucheng Pan, Zhen Pan, Zhihao Zeng, Weineng Tang, Chubin Yang, Sen Du, Yuping Ren, Gaowu Qin
Summary: A new Mg-Sm-Ce alloy sheet was fabricated by extrusion process, and its yield strength was significantly increased through a novel pre-stretching process. The pre-stretching induced grain rotation and gradually formed a specific texture, resulting in enhanced hardness of the sheet. Increased density of dislocations within the sheet inhibited the movement of dislocations and led to a higher yield strength.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Longlong Zhang, Jinshan Zhang, Rui Zhao, Jiaxin Zhang, Chunxiang Xu
Summary: Through specific treatment, the microstructure of the biomedical magnesium alloy becomes more uniform, leading to improved tensile strength and elongation. Corrosion tests in Hank's solution show that the alloy with added Mo element exhibits the best corrosion resistance.
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Yi-dan Fan, Kun-kun Deng, Cui-ju Wang, Kai-bo Nie, Quan-xin Shi
Summary: Pure titanium particles reinforced Mg-6Zn-0.2Ca magnesium matrix composites were successfully fabricated and their mechanical properties were studied. The results showed that the titanium particles promoted dynamic recrystallization of the matrix alloy, refining the size of MgZn2 phases and resulting in high yield strength and ultimate tensile strength in the composite. However, the work hardening rate of the composite decreased during plastic deformation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
J. H. Zhang, K. B. Nie, K. K. Deng, X. Z. Han, Z. D. Wang
Summary: The effect of adding trace elements of Nd to Mg-3Zn-0.5Zr alloy was studied. It was found that Nd content significantly influenced the composition and distribution of the second phase in the alloy. The introduction of Nd resulted in a decrease in grain size and grain boundary strengthening, as well as an increase in texture intensity. High strength alloys with low alloying content and traditional extrusion processes were obtained.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Ren Jie Dai, Kun Kun Deng, Cui Ju Wang, Kai Bo Nie, Guo Wei Zhang, Wei Liang
Summary: AE alloy and AS alloy were obtained by extrusion and solution treatment of Zn-rich aluminum alloy. AE alloy has fine grains and high precipitate content, while AS alloy has increased grain size and dissolved precipitates. Both alloys show improved mechanical properties, but AE alloy has higher work hardening capacity.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Wei Li, Kaibo Nie, Zhilong Liu, Kunkun Deng, Yanan Li, Xili Tong
Summary: The addition of SiC nanowires affected the microstructure and mechanical properties of Mg-2Zn-0.1Y matrix composites under different hot extrusion parameters. Stengthening mechanism was analyzed and the results showed significant changes in grain size and volume fraction with variations in extrusion temperature and speed.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Xin Lv, Kun-Kun Deng, Cui-Ju Wang, Kai-Bo Nie, Quan-Xin Shi, Wei Liang
Summary: The addition of trace submicron SiC particles can promote the formation of lamellar (α+β) structure and improve the corrosion resistance of the alloy. However, the precipitation of granular β-Mg17Al12 phase with increased SiCp content leads to a gradual decrease in corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Zedong Wang, Kaibo Nie, Kunkun Deng, Jungang Han
Summary: A low-alloyed Mg-2Zn-0.8Sr-0.2Ca matrix composite reinforced by TiC nano-particles was successfully prepared by semi-solid stirring under the assistance of ultrasonic, and then the as-cast composite was hot extruded. The finest grain size of similar to 0.30 mu m is obtained in the sample extruded at 200 degrees C and 0.1 mm/s. The ultra-high mechanical properties (ultimate tensile strength of 480.2 MPa, yield strength of 462 MPa) are obtained after extrusion at 200 degrees C with a rate of 0.1 mm/s. Among all strengthening mechanisms for the present composite, the grain refinement contributes the most to the increase in strength. A mixture of cleavage facets and dimples were observed in the fracture surfaces of three as-extruded nanocomposites, which explain a mix of brittle-ductile fracture way of the samples.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Hongwei Li, Kaibo Nie, Zhilong Liu, An Yang, Kunkun Deng
Summary: TiCp/Mg-Al-Ca-Mn nanocomposites were produced through extrusion, which resulted in refined grains and changes in the second phase. The composites exhibited specific texture composition and their properties were influenced by the degree of dynamic recrystallization and precipitates. The nanocomposites showed excellent mechanical properties, which were enhanced by various strengthening mechanisms.
Article
Materials Science, Multidisciplinary
Shilei Wang, Kaibo Nie, An Yang, Kunkun Deng
Summary: The influence of different Ca/Al mass ratios on the microstructure, phase evolution, and mechanical properties of Mg-Al-Ca-Mn alloys was investigated. It was found that increasing the Ca/Al ratio led to the transformation of the secondary phases and refinement of the grain size. The secondary phases not only refined the grains but also hindered dislocation migration, resulting in the strengthening of the alloy.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Nanoscience & Nanotechnology
Mei-li Hou, Kun-kun Deng, Cui-ju Wang, Kai-bo Nie, Quan-xin Shi
Summary: The effects of the VR/VD ratio on the work hardening and softening behaviors of Mg-6Zn-1Gd-0.12Y alloy were studied. It was found that increasing the VR/VD ratio reduced the work hardening rate in stage III, while increasing it in stage IV. A low VR/VD ratio improved the work hardening rate in stage III, while a high VR/VD ratio improved it in stage IV. With an increased VR/VD ratio, the softening behavior of the alloy increased in stage III and decreased and then increased in stage IV.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Yu Liu, Kun-kun Deng, Xuan-chang Zhang, Cui-ju Wang, Kai-bo Nie, Wei-min Gan, Quan-xin Shi
Summary: In this study, laminates composed of different thickness ratios of alloy layers and composite layers were fabricated, and their microstructure and mechanical properties were investigated. The results show that increasing the thickness ratio improves the strength of the composite, but sacrifices its ductility. The alloy layer plays an important role in alleviating stress concentration and coordinating the deformation of the composite layer. The fracture behavior of the composite is influenced by the thickness ratio and the grain sizes of the layered structure.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Electrochemistry
Xin Lv, Kunkun Deng, Cuiju Wang, Kaibo Nie, Quanxin Shi, Haoyi Niu
Summary: Through immersion, electrochemical, and Mg-air battery tests on extruded AZ91 alloy and 0.5 μm SiCp (0.5 vol.%)/AZ91 composite, it is found that the introduction of submicron SiCp can reduce the corrosion rate and improve the discharge performance of the alloy. This improvement is attributed to the refined grains, precipitates, and weakened basal texture resulting from the addition of submicron SiCp. This study provides new ideas for achieving the synergistic improvement of corrosion resistance and discharge performance of magnesium alloy.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Quanxin Shi, Cuiju Wang, Kunkun Deng, Kaibo Nie, Wei Liang
Summary: The influence of minor SiC particles on the dynamic recrystallization and dynamic precipitation behaviors of the Mg-5Zn matrix were investigated. The results showed that the addition of SiC particles can improve the dynamic recrystallized ratio of the Mg-5Zn matrix. At low compressive strains, recrystallized grains were mainly formed by bulging nucleation of the grain boundary, and the particle deformation zone around SiC particles had little effect on recrystallization nucleation. However, at higher compressive strains, fine recrystallized grains appeared around the particles due to the promotion effect of the particle deformation zone. Additionally, the volume fraction and size of the secondary phase in the SiC/Mg-5Zn material increased compared to the Mg-5Zn alloy due to the influence of SiC particles on the recrystallization behavior of the matrix.
Article
Materials Science, Composites
Li Zhang, Kun-kun Deng, Kai-bo Nie, Cui-ju Wang, Chao Xu, Quan-xin Shi
Summary: GFs/ZX50 (graphite flakes/Mg-5Zn-0.5Ca) composites were successfully fabricated by ultrasonic-assisted semi-solid stirring followed by extrusion process. The microstructure observation shows that hot extrusion effectively regulates the orientation of GFs. The GFs/ZX50 composites exhibit excellent thermal conductive property of -145.6-174.2 W/(m center dot K) and high yield strength of -386.8-407.8 MPa. The excellent strength-thermal conductivity synergy of the composites is mainly attributed to the highly orientated GFs, the clean Mg-graphite interface, the ultrafine grains, and the MgZn2 nano-precipitates.
COMPOSITES COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Quan-xin Shi, Cui-ju Wang, Kun-kun Deng, Yi-dan Fan, Kai-bo Nie, Wei- Wei-Liang
Summary: The present work investigates the impact of bimodal microstructure on the work hardening and softening behaviors of Mg-6Zn-1Gd-0.3Ca alloy. The study also discusses the grain refinement mechanism through EBSD analysis. The results reveal that the work hardening capacity of the alloy increases with the volume fraction of fine recrystallized grains due to increased dislocation storage rate caused by grain coarsening. The stress reduction value in the early stage of deformation is the highest for the alloy with fine recrystallized grains, providing a greater driving force for softening effect. However, the stress reduction values decrease with the increase of fine recrystallized grains in the later stage of deformation. Furthermore, the analysis indicates that dynamic recrystallization plays a significant role in the formation of fine recrystallized grains in the Mg-6Zn-1Gd-0.3Ca alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Xin Lv, Kunkun Deng, Cuiju Wang, Kaibo Nie, Xiaogang Wang, Quanxin Shi
Summary: The effect of submicron SiCp content on the corrosion resistance of homogenized AZ91 alloy was investigated. The results showed that the addition of 0.5 vol.% submicron SiCp significantly improved the corrosion resistance, reducing the weightless corrosion rate from 4.44 mm/y to 0.68 mm/y. However, the corrosion resistance decreased with increasing submicron SiCp concentration.
MATERIALS TODAY COMMUNICATIONS
(2023)
