层错能的影响规律;在Fe-21Mn-0.4C合金中添加合金元素,研究其对层错能的影响.研究结果表明:铝和铜增参考文献建立了Fe-Mn-C合金层错能的热力学模型,用模型计算了铝、铜、铬元素对Fe-21Mn-0.4C合金加合金的层错能,而铬则降低合金的层错能;当层错能低于10.7 mJ/m2时,Fe-21Mn-0.4C合金相组成为γ+e,当层错能为10～19.02mJ/m2时,合金的相组成为γ+ε+a,当层错能高于19.02mJ/m2时,合金的相组成为单相的γ;层错能的变化和添加了合金元素铝、铜、铬的Fe-21Mn-0.4C合金性能变化没有相一致的关系,说明影响Fe21Mn-0.4C合金力学性能的因素很多,需要进一步的研究.
参考文献
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