金属加工（热加工）Issue(5)：107-109,3.
热处理工艺对沉淀硬化不锈钢性能的影响
Effect of heat treatment process on properties of precipitation hardening stainless steel
刘金强 1秦磊1
作者信息
- 1. 中车制动系统有限公司 山东青岛 266031
- 折叠
摘要
Abstract
17-4PH steel is a typical martensitic precipitation hardening stainless steel with high strength,toughness,and good corrosion resistance.After solid solution treatment at 1040℃,17-4PH steel was subjected to primary aging treatment at 480℃ and 550℃,as well as secondary aging treatment at 550℃ after 480℃ aging.The mechanical properties and metallographic structure of the material under different heat treatment states were tested.The results show that the metallographic structure of 17-4PH steel after solid solution treatment and aging at 480℃ is martensite,while the metallographic structure after aging at 550℃ is tempered martensite.17-4PH steel has the highest tensile strength and yield strength,but lower impact toughness when aged at 480℃.As the primary aging temperature increases,the strength of the steel decreases and the impact toughness increases at 550℃.17-4PH steel can achieve good comprehensive mechanical properties such as strength and impact toughness under solid solution at 1040℃ and aging at 550℃.关键词
17-4PH钢/热处理/时效/组织/力学性能Key words
17-4PH steel/heat treatment/aging/microstructure/mechanical property引用本文复制引用
刘金强,秦磊..热处理工艺对沉淀硬化不锈钢性能的影响[J].金属加工（热加工）,2025,(5):107-109,3.
