摘要
通过Ｍｎ的加入量的变化，探讨了Ｍｎ在Ｗ—Ｎｉ－Ｆｅ—Ｃｏ（Ｍｎ）系重合金中的存在状态及其作用机制。结果表明：Ｍｎ的存在，可使Ｗ—Ｎｉ－Ｆｅ－Ｃｏ系重合金的塑性和韧性得以提高；Ｍｎ在合金中，主要以球形细小颗粒状ｆｃｃ的ＭｎＯ和Ｍｎ３Ｏ４，四方晶系的Ｍｎ２Ｏ３，正交、四方及ｂｃｃ的Ｍｎ２Ｏ３，正交晶系的ＭｎＯ２及γ－ＭｎＯ２，六角晶系的δ－ＭｎＯ２和ｆｃｃ的α－ＭｎＳ之状态弥散分布于粘结相中，且部分固溶于粘结相和扩散于钨颗粒中；Ｍｎ在合金中的作用机制为，对Ｏ原子和Ｓ原子等杂质元素在钨颗粒／粘结相界面上的净化作用和对粘结相的固溶强化作用。
Abstract:The systematic study has been made by the variations of adding amounts of Mn for the effect on the mechanical properties of 93w-Ni-Fe-Co alloy, as well as composition and content of W grains and binder phase, microstructure and fractograph, distribtuion of Mn, O and S and the type, structure, she, morphology and distribution of the inclusions formed by Mn and O and S in the alloy. The states, action and mechanism of Mn in W-Ni-Fe-Co(Mn) series heavy alloys have been discussed.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
1995年第4期25-32,共8页
Rare Metal Materials and Engineering
