摘要
采用５０Ｍｎ－５０Ｃｕ母合金粉末作添加剂及复压－热处理工艺制取Ｆｅ－１Ｍｎ－１Ｃｕ－（０．３～０．５）Ｃ烧结低合金钢．研究了实现固－液合金化的工艺条件及材料的性能．结果表明，在１０５０℃烧结３０ｍｉｎ，或在１１００℃烧结２０ｍｉｎ，均可通过固－液合金化方式，实现Ｍｎ，Ｃｕ两合金元素快速溶入Ｆｅ基体中．经复压－热处理后试样的性能可达到：密度ρ＝７．３１～７．５４ｇ／ｃｍ３；抗拉强度σｂ＝８６４～９６８ＭＰａ；冲击韧性αＫ＝１７．７～３４．８Ｊ／ｃｍ２．
Using 50Mn 50Cu master alloy powder as additive and applying repressing and heat treatment technology, Fe 1Mn 1Cu (0 3～0 5)C sintered low alloy steel was fabricated. Technology conditions of solid liquid alloying and the properties of this material were studied. The results showed both of the Mn, Cu two alloying elements can dissolve into iron very rapidly by means of solid liquid alloying at 1050 ℃ for 30 min, or at 1100 ℃ for 20 min. Through repressing and heat treatment, the properties of the samples can be as follows: density 7 31～7 54 g/cm 3; σ b=864～968 MPa; α k=17 7～34 8 J/cm 2.
出处
《中南工业大学学报》
CSCD
北大核心
1998年第4期358-360,共3页
Journal of Central South University of Technology(Natural Science)
关键词
固-液合金化
烧结
低合金钢
Fe
Mn
Cu
C
solid liquid alloying
sintered
