J75钢的时效处理工艺  

Aging Treatment of J75 Steel

作　　者：包翠敏[1] 谭朝鑫[1] 庄春瑜 陈蕊[1] 

机构地区：[1]沈阳鼓风机集团股份有限公司研究院,辽宁沈阳110869

出　　处：《材料科学与工程学报》2016年第1期85-89,共5页Journal of Materials Science and Engineering

摘　　要：本工作研究了时效处理工艺对沉淀强化奥氏体不锈钢J75的显微组织及力学性能的影响。在固定其他热处理工艺参数的情况下,分别对时效温度及时效时间进行研究,结果表明:随着时效温度由600℃升高到760℃,J75钢晶粒度变化不明显,但沉淀强化相的形状和数量均受到影响,强度及硬度在时效温度为720℃时出现峰值;随着时效时间由8h增加到48h,J75钢的显微组织及性能均未发生明显变化。Influence of the aging temperature and the aging time on the microstructure and properties of J75 steel is investigated. The results show that J75 steel kept a similar grain size for the main phase, but exhibited different shape and amount for the precipitation phase, when the aging temperature increased from 600℃ to 760℃ with other heat treatment parameters fixed. The maximum value of the mechanical strength and the micro-hardness of J75 steel were obtained after 720℃ aging for 8h followed by air cooling. While the aging time increases from 8h to 48h at 720℃, the microstructure and properties of J75 steel show no obvious change.

关 键 词：J75钢 时效温度 时效时间 晶粒度 强化相 

分 类 号：TG161[金属学及工艺—热处理]