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Ni對(duì)V55Ti20．5Cr18．1Fe6．4合金吸放氫性能的影響
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TG146.2

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Influence of Ni on Hydrogen Absorption-Desorption Performance of V55Ti20.5Cr18.1Fe6.4 Alloys
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    摘要:

    研究了用Ni元素取代一定量V對(duì)V55Ti20．5Cr18．1Fe6．4合金結(jié)構(gòu)與性能的影響。結(jié)果表明，隨Ni含量的增加，合金有效吸氫量先增大后減小，放氫壓力增大，合金吸氫動(dòng)力學(xué)性能也是先有所改善，而后又變差。添加0．1at％Ni有利于改善基體合金V55Ti20．5Cr18．1Fe6．4的吸放氫性能。用Ni元素取代V引起的晶胞體積的變化、放氫平臺(tái)壓力的升高以及雜質(zhì)相的出現(xiàn)，是影響合金有效吸氫量和吸氫動(dòng)力學(xué)性能的主要因素。

    Abstract:

    The structure and properties of V55Ti20.5Cr18.1Fe6.4 alloys were studied. It is found that with increasing Ni content, the effective hydrogen capacity increases first, and then decreases, and the hydrogen desorption pressure increases and the hydrogen absorption kinetic properties are improved first, and then decayed. The hydrogen absorption and desorption properties of V55Ti20.5Cr18.1Fe6.4 can be improved by substitution of 0.1at%Ni. The change of cell volume, the increase of hydrogen desorption pressure and the appearance of impurity phases are the main reasons influencing the hydrogen absorption and desorption properties by substitution of Ni for V for the alloy.

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梁浩 陳云貴 嚴(yán)義剛 吳朝玲 陶明大. Ni對(duì)V55Ti20．5Cr18．1Fe6．4合金吸放氫性能的影響[J].稀有金屬材料與工程,2007,36(7):1295~1298.[Liang Hao, Chen Yungui, Yan Yigang, Wu Chaoling, Tao Mingda. Influence of Ni on Hydrogen Absorption-Desorption Performance of V55Ti20.5Cr18.1Fe6.4 Alloys[J]. Rare Metal Materials and Engineering,2007,36(7):1295~1298.]
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