摘要
近年来的研究工作表明:低活性Fe-Cr-Mn系合金最有希望替代高洁性Fe-Cr-Ni系合金,使用在核反应堆中,用作第一壁结构材料和包壳材料的。本文在多年有关Fe-Cr-Mn系合金研究的基础上,设计出两种不同成分的Fe-Cr-Mn（M,V）合金,并对其显微组织、性能进行研究。实验结果证实:在Fe-Cr-Mn系合金中（C十N）的复合添加,有利于细化晶粒。使Fe-Cr-Mn（W.V）合金具有优良的力学性能,与常用316型不锈钢相比较性能接近。同时在Fe-Cr-Mn系合金中由于N的加人,使Mn元素对奥氏体层错能产生相反的影响,而层错能的提高,从根本上抑制了ε-马氏体的形成,提高了奥氏体的稳定性。
Lately studies showed that the low activation Fe-Cr-Mn type alloys were very likely to substitute the high activation Fe-Cr-Ni type alloys and can be used as first wall and cladding materials in fusion reactors. Two Fe-Cr-Mn type alloys were designed in this paper. Their micro-structures and mechanic properties were systematically studied. It's found that the adding of C and N into Fe-Cr-Mn alloys can obtain tiny grain size and Fe-Cr-Mn type alloys have as excellent mechanic property as that the 316 type, stainless steels. The adding of N into Fe-Cr-Mn type alloys can obtain the Opposite result of Mn effect on austen-ite's fault energy, ε- martensite transform was restrained and austenite stabillices were increased.
出处
《山西师大学报（自然科学版）》
1998年第1期33-38,共6页
Journal of Shanxi Teachers University(Natural Science Edition)
