QRO 90 Supreme热作模具钢的性能研究  

An Investigation on Properties of QRO 90 Supreme Hot Working Die Steel

作　　者：施雯[1] 刘以宽[1] 

机构地区：[1]上海大学,上海200072

出　　处：《机械工程材料》1996年第6期27-29,共3页Materials For Mechanical Engineering

摘　　要：研究了新型热作模具钢QRO90Supreme的显微组织和性能。结果表明,QRO90Supreme钢与ESRH13钢相比,在相同淬火、回火条件下,得到的回火马氏体组织较细,弥散分布在马氏体基体上的碳化物主要是MO、V的碳化物,回火稳定性和热稳定性较优,耐热疲劳性能也得到了改善。Microstructures and properties of QRO 90 Supreme hot working die steel were investigated in this paper. The results have showed that the structure of tempered martensite of QRO 90 supreme steel, after the same quenching and tempering is finer than that of ESR H13 steel. The carbides dispersed in the tempered martensite-matrix are mainly Mo carbide and V carbide. Tempering stability and resistance to softening are better than that of ESR H13 steel, the thermal fatigue is also improved.

关 键 词：模具钢 合金碳化物 热稳定性 热作模具钢 

分 类 号：TG142.45[一般工业技术—材料科学与工程]