Zn－Al共晶合金超塑性m－δ曲线及CL方程的应用  

SUPERPLASTIC m-δCURVES OF Zn-Al EUTECTIC ALLOY AND APPLICATION OF CL EQUATION

作　　者：刘勤[1] 翁传礼 周禧 洪坚[1] 

机构地区：[1]上海交通大学,上海有色金属研究所,上海交通大学材料科学系

出　　处：《兵器材料科学与工程》1995年第6期3-9,14,共8页Ordnance Material Science and Engineering

基　　金：国家自然科学基金

摘　　要：以不同的应变速率和温度，对Ｚｎ－Ａｌ共晶合金超塑性ｍ－δ曲线进行了测定，属ｍＬ＝ｍ＿（ｍａｘ）型，分别呈基本形式、上升式和下降式三种形式。阐明了符合于ＣＬ分类法提出的形式的转化规律。应用ＣＬ方程式进行了计算，获得了有关全部特征参数，对有关微观变化进行了初步研究。With different strain rates and temperatures,the surerplastic m-δcurves of the Zn- Al eutectie alloy have been determied by means of tensile twist,They are of the fundamental,the ascending and the descendingtypes with nL=n_(aax).The inter transformation rule of the types of curves inaccordance with that shown in the CL classi fication of super plastic m-δcurves has been expounded. W hen all curves determined, the CL equatlon hasbeen applied.Finally, all the characteristic pazalneters of the curves havebeen obtained.The related microscopic changes have been preliminarily studied.

关 键 词：锌铝共晶合金 超塑性 m-δ曲线 LC方程 

分 类 号：TG146.13[一般工业技术—材料科学与工程]