Article
Materials Science, Multidisciplinary
Jinshu Xie, Jinghuai Zhang, Zhi Zhang, Qiang Yang, Kai Guan, Yuying He, Ru Wang, Hao Zhang, Xin Qiu, Ruizhi Wu
Summary: Formation of solute-enriched stacking faults (SESFs) and their transformation into long period stacking ordered (LPSO) phase in Mg alloys have been achieved in this study. The role and advantages of SESFs and LPSO phase were confirmed by experimental observations. These findings are significant for the development of high-strength and anti-corrosion Mg alloys.
Article
Materials Science, Multidisciplinary
Jinshu Xie, Jinghuai Zhang, Zhi Zhang, Xin Qiu, Hao Zhang, Haodong Zhang, Xingkai Jiao, Xiaohan Wu, Ruizhi Wu
Summary: The as-cast, solid-solution treated, and as-extruded Mg-14.4Er-1.4Zn-0.3Zr alloys were investigated for their corrosion behavior and mechanism. The microstructure characteristics, particle size and composition, as well as the presence of certain elements in the corrosion film, all contribute to the corrosion resistance of the alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Jinshu Xie, Jinghuai Zhang, Zhi Zhang, Zijian Yu, Zhihao Xu, Ru Wang, Daqing Fang, Xiaobo Zhang, Xiaoru Zhang, Ruizhi Wu
Summary: Understanding the corrosion mechanism of magnesium (Mg) alloys and controlling the potential fluctuation are crucial for developing high-strength corrosion-resistant Mg alloys. This study reveals that the presence of different microstructures in Mg alloys can affect the corrosion rate and film formation. The structurally enhanced microstructure can reduce the potential fluctuation, leading to improved corrosion resistance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Metallurgy & Metallurgical Engineering
Guoqiang Xi, Xuhan Zhao, Yanlong Ma, Yu Mou, Ju Xiong, Kai Ma, Jingfeng Wang
Summary: Rare earth elements have a significant impact on the microstructure and properties of advanced magnesium alloys. This study investigates the corrosion behavior of Mg-Zn-Y and Mg-Zn-Gd alloys with the same atomic percentage of alloying elements. The results show that the Mg-Zn-Y alloy exhibits a lower corrosion rate and higher corrosion resistance compared to the Mg-Zn-Gd alloy, attributed to its lower corrosion current density and the relative high corrosion resistance of the corrosion product layer.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Guangyuan Tian, Junsheng Wang, Chengpeng Xue, Shuo Wang, Xinghai Yang, Hui Su, Quan Li, Xingxing Li, Chengming Yan, Zhihao Yang
Summary: In this study, it was found that microalloying Sn can improve the corrosion resistance of Mg-Li alloys by forming Mg2Sn and reducing electro-potential difference. The addition of Sn not only reduced the corrosion rate to the minimum value but also promoted the formation of dense corrosion oxide films. The corrosion mechanism involved the breakthrough of the protective layer, hydrogen evolution reaction, and segregation of secondary phases and corrosion products.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Metallurgy & Metallurgical Engineering
Jinlong Fu, Wenbo Du, Linyue Jia, Yunfeng Wang, Xunming Zhu, Xian Du
Summary: The solid-soluted Mg-10Gd-1Er-1Zn-0.6Zr alloy exhibited stacking faults and long period stacking ordered phase on the basal planes, with a higher volume fraction of the LPSO phase formed at lower cooling rates. Different cooling rates also influenced the precipitation and tensile properties of the alloy, with the water-quenched sample showing the strongest hardening response.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Chemistry, Physical
Q. Q. Jin, X. H. Shao, M. Lv, B. Zhang, C. Liu, Y. M. Li, X. L. Ma
Summary: This study examined the stacking disordered structures in Mg-Co-Y as-cast alloys, which mainly consist of F-blocks, T-blocks, 2-Mg, 3-Mg, and 4-Mg. These components can form complex structures with similar stacking characters, and their stacking sequence, periodicity, and symmetry have been characterized. The structural similarity and difference between SD structures and LPSO structures were analyzed by comparing their stacking sequences and cluster arrangements.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Wenjun Ci, Lili Deng, Xianhua Chen, Xu Dai, Li Feng, Chen Wen, Jingying Bai, Fusheng Pan
Summary: The effects of minor Gd addition on the microstructure, mechanical performance, and corrosion behavior of Mg-1Y alloys were studied. The addition of Gd decreased the hydrogen evolution rate of Mg-Y-Gd alloys, and transformed the active Mg24Y5 phase into the Mg5(GdY) phase. The high corrosion resistance of Mg-1Y0.6Gd alloy was attributed to the fine grain size, uniform distribution of surface potential, and the formation of protective corrosion passivation film rich in Gd2O3 and Y2O3.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Metallurgy & Metallurgical Engineering
Janet M. Meier, Jiashi Miao, Song-Mao Liang, Jun Zhu, Chuan Zhang, Josh Caris, Alan A. Luo
Summary: This study conducted key experiments and CALPHAD calculations to provide critical understanding of high-strength Mg-Gd-Y-Zn alloys. The experimental results were used to validate and improve the thermodynamic database of this alloy system, and accurately predict the development of promising high-strength Mg-Gd-Y-Zn alloys.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Wenjun Ci, Xianhua Chen, Yue Sun, Xu Dai, Guanzheng Zhu, Di Zhao, Fusheng Pan
Summary: The study investigates the impact of different Zn concentrations on the microstructure, corrosion property, and mechanical property of Mg-0.3Sc-xZn alloys. MSZ1 alloy exhibits the highest corrosion resistance and appropriate mechanical properties. The corrosion resistance of Mg-0.3Sc-1Zn alloys is attributed to the homogeneous volta-potential distribution and dense corrosion product film.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Xiaojie Zhou, Xiaodong Yang, Xianzheng Lu, Jian Zhang, Shilun Yu, Xiaomin Chen, Liwei Lu
Summary: This study investigates the effect of LPSO grain orientation on the compression behavior and workability of Mg alloys. It is found that the LPSO grain orientation affects the deformation behavior and workability of the alloy. The presence of sufficient initial grain boundaries weakens the effect of LPSO grain orientation on the dynamic recrystallization ratio and workability.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Deping Zhang, Jinhui Zhang, Tao Xu, Yaqin Zhang, Chaojie Che, Dongdong Zhang, Jian Meng
Summary: This paper presents a new mechanism for increasing the creep resistance of magnesium alloys, namely reducing the minimum creep rate by introducing nano-spaced stacking faults. The finding provides a reference for developing magnesium alloys with superior creep resistance.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Kai Ma, Jingfeng Wang, Jie Ren, Chaoneng Dai, Shijie Liu, Yinhong Peng, Yuanlang Pan
Summary: Rod-shaped LPSO was obtained by heat treatment in this study, and its effect on the degradation properties of Mg-7.2Y-2.8Ni alloys was investigated. The results showed that the formation of rod-shaped LPSO increased both the degradation rate and elongation of the alloys.
MATERIALS CHARACTERIZATION
(2021)
Review
Metallurgy & Metallurgical Engineering
Yujin Nie, Jianwei Dai, Xuan Li, Xiaobo Zhang
Summary: Corrosion is a major drawback for the wide applications of Mg alloys, with attention being drawn to the corrosion behaviors of alloys with stacking fault or long period stacking ordered structures. However, the corrosion mechanisms of these alloys remain unclear, calling for further research and improvement.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Review
Metallurgy & Metallurgical Engineering
Janet M. Meier, Josh Caris, Alan A. Luo
Summary: Mg-rare earth (RE) based systems offer important commercial alloys and opportunities for high strength applications. The phase diagrams, microstructure, and strengthening mechanisms of these systems are complex. This review provides critical insights into phase equilibria and strengthening mechanisms, highlights the combination of precipitation and long period stacking order (LPSO) phases for superior strength and ductility in Mg-RE based cast alloys, and suggests future research directions for alloy design and industrial scale applications.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Jinshu Xie, Jinghuai Zhang, Zhi Zhang, Xin Qiu, Hao Zhang, Haodong Zhang, Xingkai Jiao, Xiaohan Wu, Ruizhi Wu
Summary: The as-cast, solid-solution treated, and as-extruded Mg-14.4Er-1.4Zn-0.3Zr alloys were investigated for their corrosion behavior and mechanism. The microstructure characteristics, particle size and composition, as well as the presence of certain elements in the corrosion film, all contribute to the corrosion resistance of the alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Optics
Lele Wang, Tiancheng Qi, Zhoutian Liu, Yuan Meng, Dan Li, Ping Yan, Mali Gong, Qirong Xiao
Summary: A single-arm multimode fiber image transmission system is built in this study, achieving high-quality transmission of complex grayscale patterns using the inverse transmission matrix. Experimental results indicate that a random fiber laser with high time-domain stability is suitable for single-fiber imaging. This work provides guidance for further study of fiber imaging as well as novel fiber communication and flexible endoscopy.
Article
Materials Science, Multidisciplinary
Jinshu Xie, Zhi Zhang, Shujuan Liu, Jinghuai Zhang, Jun Wang, Yuying He, Liwei Lu, Yunlei Jiao, Ruizhi Wu
Summary: Two new low-alloyed Mg-2RE-0.8Mn-0.6Ca-0.5Zn alloys with excellent extrudability and superior mechanical properties, especially high-temperature strength, have been developed.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Engineering, Environmental
Haopeng Jiang, Lele Wang, Xiaohui Yu, Lijuan Sun, Jinhe Li, Juan Yang, Qinqin Liu
Summary: The precise regulation of the built-in electric field intensity in an S-scheme heterojunction was achieved by adjusting the oxygen vacancy content in WO3-x nanosheets. This resulted in the formation of the strongest BEF-driven NM/WO3-x S-scheme heterojunction, which improved charge separation and transfer, and enabled efficient simultaneous production of CO and H2O2 from CO2 and H2O without the need for any sacrificial agents.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Computer Science, Interdisciplinary Applications
Hongge Han, Liang Wang, Yueting Zhu, Zhanli Liu, Yongtao Sun, Jie Wang, Lele Wang, Shuyi Xiang, Huibin Shi, Qian Ding
Summary: This study investigates the effect of ligament and tendon fixation and detachment on sound transmission in the human middle ear using finite element and lumped parameter models. The results show that ligament and tendon fixation can cause hearing loss, and detachment significantly affects the stability in the plane perpendicular to the sound transmission direction.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2023)
Article
Engineering, Mechanical
Zhi Zhang, Jinghuai Zhang, Jinshu Xie, Shujuan Liu, Wei Fu, Ruizhi Wu
Summary: By introducing beneficial solute to achieve grain boundary segregation and reducing the critical resolved shear stress (CRSS) ratio, we obtained a Mg-0.3Er alloy with moderate-fine grains and high ductility. This study not only provides an effective way for large-scale development of high ductility Mg alloys at room temperature, but also reveals the origins of ultrahigh ductility by examining the fraction of non-basal slips and the level of grain boundary segregation.
INTERNATIONAL JOURNAL OF PLASTICITY
(2023)
Article
Optics
Tiancheng Qi, Dan Li, Guohao Fu, Yousi Yang, Guanzhong Li, Lele Wang, Shanshan Du, Ping Yan, Mali Gong, Qirong Xiao
Summary: In this study, a 10-kW-level high-spectral-purity all-fiber ytterbium-Raman fiber amplifier (Yb-RFA) is successfully demonstrated. By avoiding parasitic oscillation between the cascaded seeds, the Yb-RFA achieves 10.7 kW Raman lasing at 1125 nm using a full-open-cavity Raman seed. This work enables the wavelength extension of high-power fiber lasers with high spectral purity.
Article
Chemistry, Multidisciplinary
Jinshu Xie, Jinghuai Zhang, Shujuan Liu, Zihao You, Zhi Zhang, Tengfei Zhao, Xiaobo Zhang, Ruizhi Wu
Summary: A high-performance Mg-10Gd-4Dy-1.5Ag-1Zn-0.5Zr (wt.%, EQ142X) alloy was designed using multi-element composite addition, resulting in high yield strength (approx. 396 MPa) and ultimate tensile strength (approx. 451 MPa) after hot extrusion and ageing. The high strength is attributed to fine grains and nano-precipitates, especially beta' and gamma nano-precipitates, which act as the main strengthening phases. The introduction of nano-precipitates network into the fine-grained structure is proposed as an effective strategy for developing high-strength Mg alloys.
Article
Materials Science, Multidisciplinary
Zhi Zhang, Jinshu Xie, Jinghuai Zhang, Shujuan Liu, Ruizhi Wu, Xiaobo Zhang
Summary: This study presents a new hot-extruded + annealed alloy with a good combination of yield strength and formability potential due to the formation of nano precipitates and texture-weakened heterogeneous grains. The introduction of nano precipitates enhances the alloy's strength with minimal detrimental effect on ductility. The formation of a heterogeneous-grained structure with a weak basal texture is primarily attributed to the segregation of Sm, Zn, and Ca elements at the grain boundaries. This structure promotes additional hetero-deformation induced hardening and provides a large work-hardening capacity, resulting in high elongation. Introducing nano precipitates and texture-weakened heterogeneous grains offers a new strategy to improve yield strength and formability potential.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Zhi Zhang, Jinshu Xie, Jinghuai Zhang, Hao Dong, Shujuan Liu, Xiaobo Zhang, Jun Wang, Ruizhi Wu
Summary: In this study, trace Er addition was found to synergistically improve the mechanical and anti-corrosion properties of the Mg-1.4Al-0.4Mn-0.4Ca0.3Er alloy. The corrosion rate of the alloy was reduced by one order of magnitude compared to the reference alloy. This improvement was attributed to the reduction in dynamic recrystallization and the formation of stronger strengthening phase particles. The addition of Er also promoted the formation of a less noble Al8Mn4Er phase with effective Fe trapping ability and induced dislocation segregation, leading to reduced micro-galvanic corrosion.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Jinshu Xie, Jinghuai Zhang, Zhi Zhang, Zijian Yu, Zhihao Xu, Ru Wang, Daqing Fang, Xiaobo Zhang, Xiaoru Zhang, Ruizhi Wu
Summary: Understanding the corrosion mechanism of magnesium (Mg) alloys and controlling the potential fluctuation are crucial for developing high-strength corrosion-resistant Mg alloys. This study reveals that the presence of different microstructures in Mg alloys can affect the corrosion rate and film formation. The structurally enhanced microstructure can reduce the potential fluctuation, leading to improved corrosion resistance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Construction & Building Technology
Shuqiang Xu, Julin Wang, Qinglin Ma, Lele Wang, Tao Zhang
Summary: This study evaluated the effect and mechanism of two different types of waterproof admixtures, silica fume and their composite usage, on the hydration and mechanical properties of natural hydraulic lime. Various techniques were used to investigate the phase composition, micromorphology, and chemical state. The results showed that the combination of waterproof admixtures weakened the contact between water and cementitious matrix, leading to hydration retardation. However, silane impregnant promoted the formation of hydrated product and improved mechanical strength, while silicone-acrylic latex inhibited hydration and carbonation. Partial substitution of natural hydraulic lime by silica fume promoted hydration and hardening process, compensating for the strength weakening caused by bulk modification with waterproof admixtures.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Cardiac & Cardiovascular Systems
Chunmei Qi, Haoran Li, Yongshu Yu, Ji Hao, Hao Zhang, Lele Wang, Jingjing Jin, Qiang Zhou, Ya Hu, Chengmeng Zhang, Qingdui Zhang
Summary: Knockdown of FTO gene induces m6A RNA methylation, which affects vulnerable plaques in atherosclerosis.
BRAZILIAN JOURNAL OF CARDIOVASCULAR SURGERY
(2023)