Ti-31合金循环变形特性研究  

Cyclic Deformation Characteristic of Ti-31 Alloy

作　　者：胡耀君[1] 马红征[1] 刘果宗[1] 叶红川[1] 

机构地区：[1]西北有色金属研究院

出　　处：《稀有金属材料与工程》1998年第3期139-141,共3页Rare Metal Materials and Engineering

摘　　要：研究了Ｔｉ３１合金循环变形的力学行为及组织特征。研究表明：当循环应变Δε／２＝０．６％～１．０％时，合金具有明显的应变滞后现象，循环次数对硬化环的宽度无明显影响，循环变形特性主要表现为循环饱和。循环变形后α相内产生大量位错增殖，形成位错环。Cyclic deformation characteristic and microstructure of Ti-31 alloy has been studied. It is found that strain hysteresis is obvious as cyclic strain Δε/2=06%～10%. The cycle index has no marked influence on the width of cyclic hysteresis loop. Cyclic deformation characterises cyclic saturation. Cyclic deformation makes a lot of dislocations reproduce and become dislocation loops in α phase.

关 键 词：钛合金 循环变形 循环饱和 硬化环 

分 类 号：TG146.23[一般工业技术—材料科学与工程]