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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 19    Special 2    September 2009

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Effect of Al and Zn additives on grain size of Mg-3Ni-2MnO2 alloy
FANG Wa(房 娃), SUN Hong-fei(孙宏飞), FANG Wen-bin(房文斌), WANG Bin(王 彬)

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Abstract:The effect of Al and Zn additives on the grain size of Mg-3Ni-2MnO2 alloy was investigated. The nanostructured Mg-3Ni-2MnO2 and Mg-3Ni-2MnO2-3Al-Zn were made by ball milling process under hydrogen atmosphere. The XRD results and TEM analysis reveal that Al and Zn additives almost have no effect on the grain size of Mg-3Ni-2MnO2 alloy. The present study provides us a feasibility of producing nano-structured magnesium alloys, based on hydrogenation, disproportionation, desorption and recombination(HDDR), by adding beneficial elements to hydrogen storage materials.

 

Key words: nanocrystalline;magnesium alloy; hydrogenation-disproportionation-desorption-recombination(HDDR); ball milling

ISSN 1672-7029
CN 43-1423/U

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