Porous NiTi shape memory alloys prepared by thermal explosion method

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• 出版年：2006
• 作者：LI Qiang；YU Jing-yuan；LI Xiao-dong；SUN Xu-dong；BAI Hua；LI Ran
• 单位1：School of Material Metallurgy
• 单位2：College of Materials Chemical Engineering
• 出生年：1976
• 学历：博士研究生
• 语种：英文
• 作者关键词：NiTi SMA；thermal explosion；process parameters；porosity
• 起始页：280
• 总页数：4
• 经费资助：国家杰出青年基金（50425413）；国家自然科学基金（50672014）
• 刊名：材料与冶金学报
• 是否内版：否
• 刊频：季刊
• 创刊时间：2002
• 主办单位：东北大学
• 主编：左良
• 地址：沈阳市文化路3号巷11号东北大学114信箱
• 邮编：110004
• 电子信箱：huji@chinajournal.net.cn
• 卷：5
• 期：4
• 期刊索取号：P750.6 334

摘要

Thermal explosion method was used to prepare porous NiTi shape memory alloy. The process ofthermal explosion was investigated. The effect of process parameters on thermal explosion reaction and propertiesof products was analyzed. The results showed heating rate, green density, particle size of initial powderstrongly affected combustion temperature, porosity and compressive strength of final products. Th mechanismof thermal explosion and the microstructure of reacted products were studied by XRD and SEM photographs.The results showed the final products mainly comprised of NiTi, Ti2Ni and TiNi3 phases and theirstrength decreased with the increase of porosity.