Relationship between initial hydrogen absorption properties and microstructures of Mg/Cu super-laminate composites with different accumulative roll bonding cycles

18th International Conference on Textures of Materials

材料科学;物理学

Tanaka, K.^1 ; Nishino, D.^2 ; Kondo, R.^3 ; Takeshita, H.T.^3

Research Institute of Electrochemical Energy, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midoriagoka, Ikeda, Osaka

563-8577, Japan^1

East Tower, Gate City Ohsaki, 1-11-2 Osaki, Shinagawa-ku, Tokyo

141-8643, Japan^2

Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Osaka, Suita

564-8680, Japan^3

关键词: Accumulative roll bonding;    Cu layers;    Hydrogen absorption properties;    Hydrogenation properties;    Laminate composites;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/375/1/012032/pdf
DOI  :  10.1088/1757-899X/375/1/012032

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The relationship between initial hydrogen absorption properties and microstructures of Mg/Cu super-laminate composites (SLCs) with different accumulative roll bonding (ARB) cycles was investigated. Hydrogenation of Mg was dominant in Mg/Cu SLCs with 5 and 10 cycles of ARB, whereas that of Mg2Cu was dominant in Mg/Cu SLCs with 20 and 30 cycles of ARB. The growth rate constants did not show a significant difference among Mg/Cu SLCs with different ARB cycles. It is considered that the average thickness of Mg + Cu layers in as-rolled Mg/Cu SLCs as a function of ARB cycles has a large influence on initial hydrogenation properties and microstructure formation processes.