热处理对Ti18Cr24V55Zr3合金吸放氢性能的影响
CIESC Journal
• 能源和环境工程 • 上一篇 下一篇
陈立新;刘剑;王新华;郑坊平;陈长聘
浙江大学材料与化学工程学院,浙江 杭州 310027
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Effects of heat treatment on hydriding/dehydriding characteristics of Ti18Cr24V55Zr3 alloy
CHEN Lixin; LIU Jian;WANG Xinhua;ZHENG Fangping;CHEN Changpin
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Abstract: The effects of heat treatment (at 1473 K for 2 h or 6 h) on the hydriding/dehydriding characteristics of Ti18Cr24V55Zr3 alloy were investigated.The microstructure analysis showed that the as-cast alloy consisted of a V-based solid solution main phase with BCC structure and a ZrCr2 secondary phase, and the alloys treated at 1473 K for 2 h and 6 h had a small amount of Ti-rich phase besides the V-based solid solution and ZrCr2 phase.It was found that the heat treatment led to an increase of the kinetics of the alloy and a slight decrease of the hydrogen absorption capacity at 20℃.However, the heat treatment increased the width and decreased the gradient of the plateau of the p-c isotherm.The result showed that the alloy treated at 1473 K for 2 h had good overall properties, such as activation behavior of 1 cycle, hydrogen absorption capacity of 394 ml8226;g-1 at 20℃ and effective desorption capacity of 232 ml8226;g-1 at 80℃.
陈立新;刘剑;王新华;郑坊平;陈长聘 .
CHEN Lixin; LIU Jian;WANG Xinhua;ZHENG Fangping;CHEN Changpin.
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