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Hydrogen Embrittlement Processes and Al/Al2O3 Hydrogen Resistance Coatings of NdFeB Magnets 蒋洪川1,张文旭1,彭斌1,张万里1,杨仕清1 (1.School of Microelectronics and Solid-State Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China) Abstract:After analyzing the phenomena and processes of hydrogen embrittlement of NdFeB permanent magnets,RF magnetron sputtering was used......
Hydrogen diffusion in Zr35Ni55V10 amorphous alloy CHENG Xiao-ying(程晓英), WAHG Fang(王 芳) Institute of Materials Science, Shanghai University, Shanghai 200072, China Received 20 October 2006...; Abstract: Hydrogen diffusion in Zr35Ni55V10 amorphous alloy was measured by chronopotentiometry. The results show that at lower molar ratio of hydrogen (x<0.06, x=n(H)/n(M)), the diffusivity......
Hydrogen Absorption and Release Behavior in Hydrogen Decrepitation Process of Nd-Fe-B Alloys 陈晓东1,杨昌平1,陈秀云1,石大立1,朱静1,姜忠良1 (1.School of Materials Science & Engineering, Tsinghua University, Beijing 100084, China) Abstract:The behavior of hydrogen absorption and release in hydrogen decrepitation (HD) process of Nd-Fe-B alloys were investigated. The results reveal that the reactivity......
Phase transformation rate in hydrogen absorption of magnesium-based materialsZHANG Wen-cong(张文从)1, FANG Wen-bin(房文斌)1, YU Zhen-xing(于振兴)2, ZHAO Guo-liang(赵国亮)1, WANG Er-de(王尔德)1, SUN Zhi-jie(孙志杰)(1...:The hydrogen storage material Mg-Ni-MnO2 was prepared by mechanical alloying under the hydrogen atmosphere and its phase transformation rate in hydrogen absorption was studied using the self-designed......
Characteristic Investigation of Nano-Crystal Hydrogen Storage Alloys Tang Renheng1,Lu Qiyun1,Xiao Fangming1,Huang Lili1,Peng Neng1,Wang Ying1 (1.Rare Earth Materials Research Center, Guangzhou Research Institute of Nonferrous Metals, Guangzhou 510651, China) Abstract:A Ml (NiCoMnA1)5 hydrogen storage alloys was prepared by double-roller rapid quenching.Its microstructure, electrochemically......
Hydrogen absorption and desorption in metallic glass and nanocrystalline Zr52.5Cu17.9Ni14.6Ti5Al10 alloy CHENG Xiao-ying(程晓英), WANG Fang(王 芳) Institute of Materials Science, Shanghai...; Abstract: To illuminate the intrinsic surface activity of Zr52.5Cu17.9Ni14.6Ti5Al10 alloy in its glass and nanocrystalline states, hydrogen......
J. Cent. South Univ. Technol. (2011) 18: 1063-1067 DOI: 10.1007/s11771-011-0804-5 Hydrogen permeability of slags containing calcium fluoride DONG Yan-wu(董艳伍)1, 2, JIANG Zhou-hua(姜周华)1, LIANG Lian... South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: To investigate the hydrogen permeability of calcium fluoride used for electroslag remelting (ESR) process, "Gas-slag- metal......
Study on Diffusion of Hydrogen in AB5 Non-Stoichiometric Hydrogen Absorbing Alloys 彭文杰1,王志兴1,陈启元1,李新海1,郭华军1 (1.Department of Metallurgical Physico-Chemistry, School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract:The diffusion coefficient of hydrogen atoms in the studied alloys was electroche mically measured by chronoamperometry when......
DEGRADATION BEHAVIORS OF NEW TYPE TiV-BASED HYDROGEN STORAGE ELECTRODE ALLOYS X.Z. Sun1,M.X. Gao1,Y.F. Zhu1,R. Li1,H.G. Pan1,Y. Lin1 (1.Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China) Abstract:The degradation behaviors of the TiV-based multiphase hydrogen storage alloy Ti0.8Zr0.2V3.2Mn0.64-Cr0.96Ni1.2 during electrochemical cycling in alkaline......