FeMnSiCrNiCo合金记忆性能的研究

An Investigation on Shape Memory Effect of FeMnSiCrNiCo Alloy

针对具有良好耐蚀性的FeMnSiCrNiCo系合金 ,确定了合理的热加工及固溶处理温度 ,研究了预变形量、退火温度及记忆训练对合金记忆性能的影响 ,并分析了微观组织。结果表明 ,随着预变形量增加 ,记忆回复率 (ηm)下降 ,但记忆回复应变量 (εm)有一个最佳值。合金的记忆性能和微观组织随训练退火温度变化而不同 ,训练退火温度对训练效果起十分关键的作用 。

The temperature of hot forming and solution is determined for FeMnSiCrNiCo anti corrosion alloy. The influence of pre deformation ,annealing temperature and training on shape memory effect is investigated with the analysis of microstructures. The results show that η m descends and ε m reaches a optimum point along with pre deformation increasing, the shape memory effect(SME) and microstructure of FeMnSiCrNiCo alloy vary with training annealing temperature changing. Annealing temperature plays an important role in training effect and parent matrix sub structure is an essential factor for the SME of FeMnSiCrNiCo alloy.