Article
Chemistry, Physical
Pham Hong Quan, Iulian Antoniac, Florin Miculescu, Aurora Antoniac, (Paltanea) Veronica Manescu, Alina Robu, Ana-Iulia Bita, Marian Miculescu, Adriana Saceleanu, Alin Danut Bodog, Vicentiu Saceleanu
Summary: Fluoride conversion coatings can improve the biodegradability and corrosion resistance of magnesium alloys, making them potentially suitable for manufacturing cardiovascular stents and biodegradable orthopedic implants.
Article
Materials Science, Multidisciplinary
Wenchao Hu, Wanyi Huang, Ying Sun, Wen Zhang, Lili Tan, Song Zhang, Guangcai Ma, Dan Zhang, Qiang Wang
Summary: In this study, fatigue properties of Mg-2Zn-0.5Zr-0.5Nd alloy were tested and it was found that the fatigue life varies with different frequencies. It was also observed that the alloy exhibits poorer fatigue resistance in 0.9 wt% NaCl solution.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
Lianhui Li, Jiaxin Bao, Mingliang Qiao, Jie Tian, Yiqiang Yang, Jianchun Sha, Zhiqiang Zhang
Summary: Three high-performance as-extruded Mg-Gd-Zn-Zr alloys were prepared and their microstructure, mechanical properties, and corrosion resistance were studied. The results showed that the alloys had refined and broken grains and second phase after hot extrusion. The as-extruded GZ22 alloy exhibited the highest ultimate tensile strength and the lowest corrosion rate due to fine grains and a small amount of dispersed second phase.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Xiaojie Zhou, Wenying Xiong, Gang Zeng, Hongchao Xiao, Jian Zhang, Xianzheng Lu, Xiaomin Chen
Summary: The combined effects of LPSO orientation and alpha-Mg texture on tensile anisotropy were investigated, with the extrusion direction showing optimal mechanical properties, the 45 degrees direction exhibiting high elongation, and the transverse direction having inferior strength and elongation simultaneously. LPSO orientation contributes to strength anisotropy through different load-bearing strengthening effects along different tensile axes, while alpha-Mg texture contributes to strength anisotropy through stronger grain boundary strengthening effects. However, LPSO orientation, rather than alpha-Mg texture, accounts for ductility anisotropy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Jianwei Dai, Qiangsheng Dong, Yujin Nie, Yongqiang Jia, Chenglin Chu, Xiaobo Zhang
Summary: The microstructures, mechanical properties, and corrosion behaviors of Mg-4Gd-xY-1Zn-0.5Ca-1Zr (x = 1, 3, and 5 wt.%) alloys under as-cast condition were investigated. It was found that Y addition significantly improved the yield strength and corrosion resistance of the alloys.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Physical
Guang Li Bi, Yashuo Wang, Jing Jiang, Jiarui Gu, Yuandong Li, Tijun Chen, Ying Ma
Summary: The microstructure and mechanical properties of extruded Mg-2Y-1Zn, Mg-2Y-0.5Zn-0.5Ni, and Mg-2Y-1Ni alloys were systematically studied, showing the significant influence of different morphologies of LPSO phase on the alloy properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Xiaoyu Wang, Wenzhen Chen, Ming Yang, Jinqi Pan, Daqing Fang, Junpeng Duan, Wencong Zhang, Wenke Wang
Summary: This study investigates the effects of different yttrium (Y) contents on the microstructure and tension/compression asymmetry of Mg-5.5Zn-0.6Zr alloys. It is found that Y addition increases the volume fractions of microscale phases and refines the microstructure. The addition of Y also enhances the hardening rate, suppresses twinning, and improves the tension/compression asymmetry in the alloy.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
B. N. Du, Z. Y. Hu, L. Y. Sheng, D. K. Xu, Y. X. Qiao, B. J. Wang, J. Wang, Y. F. Zheng, T. F. Xi
Summary: A new Mg-Zn-Y-Nd alloy for degradable orthopedic implants was developed and the influences of Zn and Y content on microstructures and mechanical behaviors were discussed. Results showed that increasing Y content can enhance the tensile and compressive strength of the alloy, while decreasing elongation.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Hang Xu, Yuan Li, Luoyi Wu, Fulin Jiang, Dingfa Fu, Jie Teng, Hui Zhang
Summary: The influence of heat treatments on the corrosion behavior of Mg-Re alloy was investigated. It was found that heat treatment can decrease the corrosion rate of the alloy and form fine corrosion grooves. The improved homogeneity and the introduction of beta' precipitate as a corrosion barrier contribute to the reduced corrosion rate.
Article
Materials Science, Multidisciplinary
Xiang Yuan, Yuzhou Du, Dan Dong, Dongjie Liu, Bailing Jiang
Summary: The study showed that aging treatment significantly improved the corrosion resistance of the extruded Mg-8.9Gd-2.8Y-1.8Zn-0.4Zr-0.2Ca alloy by dissolving part of the lamellar LPSO phases and increasing the size of recrystallized grains, thereby reducing the possibility of micro-galvanic corrosion. The peak-aged sample with a more homogeneous microstructure and small amount of lamellar LPSO phase exhibited the best corrosion resistance.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Materials Science, Multidisciplinary
Polina Metalnikov, Guy Ben-Hamu, Kwang Seon Shin
Summary: This study investigated the effect of varying Zn additions on the corrosion resistance of wrought Mg-5Al alloys, identifying three secondary phases that contribute to changes in the corrosion behavior. While short periods of immersion are characterized by pitting corrosion, long periods lead to the formation of a protective layer and filiform corrosion in alloys with higher Zn content. The micro-galvanic effects continue to play a crucial role in deteriorating corrosion resistance in alloys with relatively high Zn content, depending on the behavior of the cathodic particles and their total number on the alloy's surface.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Hongmin Jia, Mengrui Wang, Sheji Luo
Summary: A novel Mg-Zn-Zr-Y-Cu alloy was fabricated and its corrosion behavior was investigated. The ZWCK6100 alloy exhibited finer grain size, more uniform microstructure, and contained additional CuMgZn and I phase (Mg3Zn6Y) compared to the ZK60 alloy. As a result, the ZWCK6100 alloy showed lower corrosion rate, higher corrosion resistance, and slightly localized corrosion in 3.5 wt-% NaCl solution, indicating that the combined addition of Y and Cu improved the corrosion resistance of Mg alloys.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Metallurgy & Metallurgical Engineering
S. D. Wang, M. Y. Wu, D. K. Xu, En-hou Han
Summary: The wear resistance of an Mg-Zn-Y-Zr alloy was significantly improved after a heat treatment, regardless of the testing condition (air or NaCl solution). The dominant wear mechanism was abrasive wear accompanied by oxidation in dry sliding, while corrosive wear was dominant in the NaCl solution. The heat treatment resulted in the homogeneous distribution of fine I-phase precipitates, which enhanced the corrosive wear resistance and reduced wear, corrosion, and wear-corrosion synergy.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Materials Science, Multidisciplinary
S. Mosadegh, M. Aghaie-Khafri, B. Binesh
Summary: The hot deformation behavior of Mg-5Gd-2.5Nd-0.5Zn-0.5Zr alloy was investigated through compression tests at temperatures ranging from 350 to 500 degrees C and strain rates from 0.001 to 1 s(-1). Microstructural evolution showed a high rare-earth metal constituent affecting the deformation mechanisms, including twining below 350 degrees C and dynamic recrystallization and second phase interaction above 350 degrees C. The flow stress was well fitted by the hyperbolic sine equation with an average activation energy of 297.81 kJ/mol.
PHILOSOPHICAL MAGAZINE
(2021)
Article
Chemistry, Physical
Guoqin Wu, Zhaocan Li, Jianmin Yu, Hongbing Hu, Yali Duan, Beibei Dong, Zhimin Zhang
Summary: The texture evolution mechanism of Mg-13.1Gd-3.9Y-2Zn-0.4Zr (wt%) alloys during reciprocating upsetting extrusion and subsequent heat treatment was investigated. The influence of deformation passes on texture weakening and deformation mechanism was discussed. The results showed that the basal texture intensity decreased with increased deformation passes and significantly decreased after T6 heat treatment. The anisotropy of the alloys was maintained after T5 treatment and eliminated after T6 treatment.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
