Effects of aging treatment and strain amplitude on internal friction of porous NiTi shape memory alloys

摘要：

NiTi shape memory alloys (SMAs) with different porosities were fabricated. Then damping capabilities of the fabricated por ous NiTi SMAs were characterized by internal friction (IF) analysis using a dynamic mechanical analyzer (DMA). The results showed that the IF peaks of the porous NiTi SMAs show different strain amplitude dependence when the testing amplitude was changed in the range of 10-3-10-2. The amplitude dependence of IF also showed that there is an amplitude limit for IF test of the porous NiTi alloys.Furthermore,the effect of aging treatment and porosity on the IF behavior was analyzed and discussed.

关键词： Porous SMAs strain amplitude porosity IF ageing treatment

作者: Zhang Y.P. Zhao S.Y. Yang K.Z. Liu M. CHUNG C.Y.

作者单位: Guang-zhou Research Institute for Non-Ferrous Metals,Guangzhou 510651,China Department of Physics and Materials Science,City University of Hong Kong,Hong Kong,China

会议类型: 国际会议

会议名称: The 10th China-Russia System on Advanced Materials and Technologies(第十届中俄新材料新工艺研讨会)

会议地点: 浙江嘉兴

会议语种:英文

页码: 338-341

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）