摘要
这篇文章介绍了关于高速钢用于气门座圈的情况。评定了两种材料:一种是研发的高速钢M3/2粉、Fe粉及NbC的混合粉制造的材料;一种是为了比较,由Fe-Co合金制造的气门座圈。用SEM对研制的气门座圈的显微组织进行了鉴定。对研发的高速钢的物理-力学性能将分别介绍密度、硬度、径向压溃强度及切削加工性。
This work presents aspects related to high-speed steels for valve seat inserts application.Two types of materials were evaluated,one made on purpose high speed steel M3/2 mixed with iron powder and niobium carbide and another valve seat insert made of Fe-Co alloy,for comparison.The microstructure of the made on purpose valve seat insert was evaluated by scanning electron microscopy.The physical and mechanical properties of the high-speed steels studied are presented in terms of densification,hardness,radial mechanical strength and machining.
出处
《粉末冶金技术》
CAS
CSCD
北大核心
2011年第2期149-153,共5页
Powder Metallurgy Technology
关键词
粉末冶金
高速钢
汽车零件
气门座圈
powder metallurgy
high-speed steel
automotive components
valve seat inserts
