热弹性马氏体相变滞弹性弛豫的研究  

Study on the anelastic relaxation in thermoelastic martensitic transformation

作　　者：朱成忠[1] 宫晨利[1] 闵祥敏[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2010年第1期36-37,54,共3页Journal of Hefei University of Technology：Natural Science

摘　　要：文章研究了Cu-Al-Ni-Mn-Ti多晶形状记忆合金的相变弛豫特性。实验和理论分析表明,该合金的耗散模量和模量弛豫量的关系为M2=0.316δM,半峰宽Δlgωτ=1.735,与Debye弛豫峰对比,铜基合金热弹性马氏体相变的频率弛豫峰出现一定程度的宽化,仍属于滞弹性弛豫范畴。The properties of phase transition relaxation of polycrystalline Cu-Al-Ni-Mn-Ti shape memory alloy were studied in the paper.The experiment results and theoretical analyses show that the relationship of loss modulus to modulus relaxation quantity is M2=0.316δM and the semi-peak width is Δlg ωτ=1.735 in the alloy.Compared with the Debye relaxation peak,the relaxation peak gets to some extent broadened at frequency spectra in the thermoelastic martensitic transformation of Cu-based alloy,but still belonging to a kind of anelastic relaxation.

关 键 词：铜基形状记忆合金 热弹性马氏体相变 力学弛豫 耗散模量 

分 类 号：TG111.7[金属学及工艺—物理冶金]