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Martensitic Surface Relief and New Martensite Transformation Mechanism for Fe-15Ni-0.6C Alloy
Author(s): 
Pages: 15-21
Year: Issue:  6
Journal: Heat Treatment

Keyword:  Fe-Ni-C合金马氏体表面浮凸切变比体积体积膨胀;
Abstract: 对预先抛光的Fe-15Ni-0.6C合金试样进行真空热处理,随后用Nano First-1000型扫描隧道显微镜和QUANTA-400型环境扫描电镜对未经浸蚀的试样进行观察分析,发现,Fe-15Ni-0.6C合金马氏体片的浮凸为帐篷形(∧型),浮凸最高高度为43~96 nm.分析认为,马氏体表面浮凸是由于过冷奥氏体转变为马氏体时比体积增大、体积膨胀造成的,而非切变所致.对浮凸高度进行了理论计算,结...
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