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[求助] 如何用EBSD测量Tolerance angle角度对应的平均晶粒尺寸

(1)最近看了篇文献,文章里用EBSD测量了Tolerance angle角度对应的平均晶粒尺寸,并得到了如图1所示的变化趋势。搞了半天都不懂Tolerance angle是什么意思,原文为:EBSD effective grain size was calculated as the equivalent circle diameter related to the individual grain area. Tolerance angles ranging from 2° to 30° were applied. The tolerance angle corresponds here to the threshold misorientation angle used forrecognizing a grain boundary.
        (2)按照我的理解Tolerance angle就是图2中的Critical misoriention(临界晶粒取向差)。图1就是设定不同的Critical misoriention(临界晶粒取向差)获得的,不知道理解的对不对?
        (3)图2中勾选allow boundary completion down to 是什么意思呢?如何用EBSD测量Tolerance angle角度对应的平均晶粒尺寸
图1 Tolerance angle角度对应的平均晶粒尺寸


如何用EBSD测量Tolerance angle角度对应的平均晶粒尺寸-1
图2  EBSD软件截图
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