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OALib Journal期刊
ISSN: 2333-9721
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锯齿状魏氏组织表面浮凸的扫描隧道显微镜研究
, PP. 1249-1254
Keywords: 锯齿状魏氏组织,仿晶型铁素体,表面浮凸,扫描隧道显微镜,台阶生长
Abstract:
用扫描隧道显微镜观察到Fe—0．37C（质量分数，％）钢中的锯齿状魏氏组织产生表面浮凸，发现其浮凸是由多片魏氏组织片条组成的浮凸群，浮凸高度约为60—170nm，低于其形核处仿晶型铁素体的表面浮凸。在仿晶型铁素体中观察到面-面激发形核方式，其浮凸的最大形状变形量为0．39．锯齿状魏氏组织和仿晶型铁素体的表面浮凸可用台阶机制解释，并以台阶机制定性解释了帐篷型、复杂型和单倾型表面浮凸的形成过程．
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