Article
Engineering, Biomedical
Wenhui Wang, Carsten Blawert, Rui Zan, Yu Sun, Hongzhou Peng, Jiahua Ni, Pei Han, Tao Suo, Yang Song, Shaoxiang Zhang, Mikhail L. Zheludkevich, Xiaonong Zhang
Summary: The study successfully obtained bulk nanocrystalline Mg alloy with high strength and good corrosion resistance through hot rolling process of a lean Mg-2wt.%Zn alloy. The microstructure evolution during the rolling process was analyzed in depth, providing a new direction for the development of lean biomedical Mg alloys.
BIOACTIVE MATERIALS
(2021)
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
Devadas Bhat Panemangalore, Rajashekhara Shabadi, Manoj Gupta
Summary: This study investigates the effect of calcium and erbium on magnesium-zinc alloy properties, finding that the addition of erbium reduces grain size and enhances mechanical and corrosion resistance. The quaternary alloy shows the highest strength and elongation due to twin structures. The addition of alloying elements also reduces degradation rates.
Article
Nanoscience & Nanotechnology
Jiapeng Sun, Bangjun Li, Jie Yuan, Xiankai Li, Bingqian Xu, Zhenquan Yang, Jing Han, Jinghua Jiang, Guosong Wu, Aibin Ma
Summary: Developing wrought Mg alloys with excellent mechanical properties, such as an Mg-5.7Gd-1.9Ag wt. % alloy sheet, is crucial for extending Mg alloys' applications. The microstructure of the alloy showed a multiphase precipitate microstructure responsible for the strong aging response, with a suppressed stage II of strain hardening observed in the rolled and aged alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
Qiumin Xie, Yunxin Wu, Tao Zhang, Shunli Peng, Zhongyu Yuan
Summary: The effect of quenching rate on microstructure, residual stress (RS) and mechanical properties of a rare-earth wrought magnesium alloy were investigated. The decrease of quenching rate had little effect on the grain size but affected the presence of twinning, precipitates, and texture, leading to easier brittle fracture after aging. Quenching at 100 degrees C was found to be the best condition, significantly reducing RS and resulting in only a slight decrease in yield stress and hardness compared to quenching at 20 degrees C.
Article
Chemistry, Physical
Bangjun Li, Jiapeng Sun, Bingqian Xu, Guosong Wu
Summary: This paper investigates the corrosion behavior of Mg-5.7Gd-1.9Ag alloy sheets in a salt solution. The results show that the rolled sheets exhibit better corrosion resistance compared to the as-cast sheets. Aging treatment decreases corrosion resistance, but it still remains higher than that of the as-cast sheets. The migration of corrosion is mainly influenced by the evolution of second phases rather than grain size and texture.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Stefan Gneiger, Aurel Arnoldt, Nikolaus Papenberg
Summary: Wrought Magnesium alloys with Ca as the main alloying element showed improved performance in processing and microstructural evolution when synergistically combined with additional elements. High mechanical properties can be achieved when processed at moderate temperatures.
Article
Materials Science, Multidisciplinary
Jing Han, Cong Wang, Yuanming Song, Zhiyuan Liu, Jiapeng Sun, Jiyun Zhao
Summary: The ultrasonic surface rolling (USR) technique has been used to improve the corrosion resistance and mechanical properties of Mg alloy casting parts. The USR sheet exhibits significant enhancements in strength, hardness, and corrosion resistance without sacrificing ductility. This method can be considered as an additional and last working procedure in the production of high-performance Mg alloy casting parts.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(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
Ebrahim Tolouie, Roohollah Jamaati
Summary: This study investigates the effect of rolling reduction on the microstructure, crystallographic texture, and mechanical properties of the AZ91 alloy. The results show that increasing the rolling reduction significantly enhances the hardness and tensile strength. The formation of twins and basal texture during rolling plays a crucial role in the strength-ductility combination of the material.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Polina Metalnikov, Guy Ben-Hamu, Kwang Seon Shin, Amir Eliezer
Summary: Magnesium (Mg) alloys have potential applications in improving fuel efficiency in automotive and aircraft industries due to their low density. However, the corrosion behavior of Mg and its alloys is a significant concern, and in this study, the addition of calcium (Ca) to wrought AM60 alloy was found to deteriorate corrosion resistance in a NaCl solution but improve it in the absence of Cl- ions. The study also discussed the impact of long-term immersion on corrosion behavior and alloy oxidation.
Article
Nanoscience & Nanotechnology
Jing Xu, Yanshuo Peng, Bo Guan, Yunchang Xin, Adrien Chapuis, Guangjie Huang, Qing Liu
Summary: Dual-phase Mg-Li alloys with different rolling paths were studied to investigate the effect of rolling path on microstructure, texture and mechanical anisotropy. The lamellar alpha+beta structures remained after ED-rolling and subsequent annealing, while disappeared after TD-rolling. The texture of beta phase was hardly affected by the rolling path. Annealing only reduced the maximum intensity of texture without changing the type of texture. VPSC simulations revealed that the activated deformation modes and alpha/beta phase boundaries played important roles in texture evolution. There was an obvious mechanical anisotropy after ED-rolling, which disappeared after TD-rolling.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Hidetoshi Somekawa, Motohiro Yuasa, Daisuke Ando, Yoshikazu Todaka
Summary: The application of large strain to Mg-9at.%Y-6at.%Zn alloy leads to the formation of high density deformation kink boundaries. Shear strain is a controllable parameter for inducing kink boundaries effectively, especially in wrought-processed alloys containing the LPSO phase.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Qiang Li, Xudong Zhang, Shuang Ben, Zhihong Zhao, Yuzhen Ning, Kesong Liu, Lei Jiang
Summary: By designing a micro/nano structure-functional molecule superhydrophobic composite coating with self-healing and active anti-corrosion properties, the corrosion resistance of magnesium (Mg) alloys was improved, providing new insights for the wide application of Mg alloys and research in the field of metal protection.
Article
Chemistry, Physical
Qiang Li, Xudong Zhang, Shuang Ben, Zhihong Zhao, Yuzhen Ning, Kesong Liu, Lei Jiang
Summary: In this study, a micro/nano structure-functional molecule superhydrophobic composite coating was designed, which can self-heal and exhibit active anti-corrosion properties after damage. The investigation of its anti-corrosion performance and self-healing mechanism expands the application of magnesium alloys and research in the field of metal protection.
