Cr12MoV钢锻造过热过烧及对最终组织和性能影响研究  

The Effects of Overheating and Overburning Treatment on the Microstructure and Mechanical Properties of Final Heat Treatment in the Cr12MoV steel

作　　者：胡德林[1] 张建国[1] 张帆[1] 陈彦[1] 董治洲 刘诚毅 阎维霞 

机构地区：[1]西北工业大学,西安远东机械制造公司

出　　处：《热加工工艺》1994年第5期5-8,共4页Hot Working Technology

摘　　要：采用模拟方法．研究了Ｃｒ１２ＭｏＶ钢锻造加热过热、过烧对其随后中间球化处理及最终淬火、回火处理的组织和性能的影响。结果表明，锻造加热温度在１１６０℃以上出现过热．在１２２０℃以上出现过烧。严重过热及过烧后，中间退火及最终热处理都不能使其得到改善，一次冲击韧性、多冲疲劳寿命及抗弯强度等均严重降低．但过热及过烧对硬度却无明显影响。Represented by tile Cr12MoV steel and using imitating method, the effects of overheating treatment on the microstructure and mechanical properties of spheroidizing anealing, final guenching and tempering treatments hane been studied. The resuits show that the overheating and overburning temperature of the stael are about 11600℃ and 1220℃ respectively. The microstructure and mechanical properties of overheaie or overburnt steel can not be improved by following spheroidizing anealing and guenching. Impact toughnass. Multi-impact fatigue life and bending strength are extreamely deteriorated. but the hardness of the steel is not change.

关 键 词：CR12MOV钢 过热 过烧 锻造 

分 类 号：TG317[金属学及工艺—金属压力加工]