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SpSuN_dlut

至尊木虫 (著名写手)

[求助] 宏观残余应力与微观残余应力的区别

X射线衍射测量残余应力的时,宏观和微观残余应力有什么区别呢?微观是什么尺度,晶粒尺度,晶胞尺度?加载后某一截面衍射花样的应力属于哪种应力呢?
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helloyc

铁虫 (小有名气)

【答案】应助回帖

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感谢参与,应助指数 +1
SpSuN_dlut: 金币+10, ★★★很有帮助, 那能说明下微观应力的测量方法吗,这个公式σ=Eθ|tanθ(貌似这样写)是微观还是宏观呢,请指教啊 2012-10-17 12:53:23
宏观残余应力是材料里面的弹性应力,单位为MPa

围观残余应力,是由于加工变形产生的位错,用XRD 衍射峰的半高宽测量,单位为1
2楼2012-10-17 08:02:24
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