摘要
针对 40 Cr用 AQ2 51冷却介质淬火开裂的问题 ,从处理工艺、化学成分、金相组织及淬火介质冷却特性上进行了分析 ,认为 40 Cr淬火开裂主要是由于 AQ2 51淬火介质长期使用后其冷却特性发生了变化而引起的。
In this paper,the cracking reason of 40Cr in quenching medium AQ251 is studied by means of analysing of heat treatment process,the chemical composition,the microstructure and the cooling property of AQ251 quenching medium.The result shows that the cracking reason of 40Cr in quenching medium AQ251 is that the cooling property of AQ251 quenching medium changes for the long time usage.
出处
《热加工工艺》
CSCD
北大核心
2000年第5期41-42,共2页
Hot Working Technology
