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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Fe-C-Si-Mn合金中贝氏体表面浮突的精细结构
, PP. 225-231
Keywords: 扫描隧道显微镜,表面浮突,超亚单元,激发形核-台阶生长
Abstract:
用扫描隧道显微镜对Fe-C-Si-Mn合金中的下贝氏体浮突进行了观察研究发现用透射显微镜观察到的最小结构单元——亚单元是由更小的超亚单元组成的超亚单元的浮突为“帐篷”型，而非不变平面应变型，表明它不是切变形成；超亚单元的浮突高度为60-140nm，最大形状变型量约为0．23．贝氏体的多层次结构以及合金无素C和Si对它的影响可用激发形核-台阶生长机制来解释.
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