介绍了获得满足△9平行法则的位向关系、惯习面、正空间和倒空间准不变应变线的计算方法,解释了高锰钢中先共析魏氏组织渗碳体在奥氏体晶内析出时的Pitsch和T-H位向关系.计算得到的位向关系和惯习面结果与实验结果吻合得很好.根据计算结果,将惯习面分解成原子级的台阶,绘制了Pitsch和T-H位向关系惯习面上的晶格匹配示意图.
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