金属热处理 ›› 2024, Vol. 49 ›› Issue (8): 165-169.DOI: 10.13251/j.issn.0254-6051.2024.08.028

• 工艺研究 • 上一篇    下一篇

低碳耐蚀模具钢0Cr13NiN的组织性能

陈建礼1, 楚宝帅1,2, 赵志刚1   

  1. 1.山西太钢不锈钢股份有限公司技术中心, 山西 太原 030003;
    2.太原科技大学 材料科学与工程学院 金属材料成形理论与技术山西省重点实验室, 山西 太原 030024
  • 收稿日期:2024-02-23 修回日期:2024-06-16 出版日期:2024-08-25 发布日期:2024-09-27
  • 作者简介:陈建礼(1968—),男,正高级工程师,主要研究方向为工模具钢产品及工艺开发,E-mail:chenjl@tisco.com.cn

Microstructure and properties of low carbon corrosion-resistant die steel 0Cr13NiN

Chen Jianli1, Chu Baoshuai1,2, Zhao Zhigang1   

  1. 1. Technical Center of Shanxi Taigang Stainless Steel Co., Ltd., Taiyuan Shanxi 030003, China;
    2. Shanxi Key Laboratory of Metal Forming Theory and Technology, School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan Shanxi 030024, China
  • Received:2024-02-23 Revised:2024-06-16 Online:2024-08-25 Published:2024-09-27

摘要: 研究了低碳耐蚀模具钢0Cr13NiN不同热处理状态下的显微组织与性能,并与预硬态耐蚀模具钢4Cr13的力学性能和耐点蚀性能进行了对比。结果表明,0Cr13NiN钢的退火组织主要为铁素体+碳化物。相比预硬态4Cr13钢,预硬态0Cr13NiN钢具有更好的耐点蚀性能与韧性。0Cr13NiN钢的预硬化热处理工艺推荐为:淬火温度980~1030 ℃,回火温度520~540 ℃,回火两次;其淬火组织为马氏体+未溶碳氮化物+少量残留奥氏体,回火组织为回火马氏体+一次碳氮化物+碳氮化物。

关键词: 耐蚀模具钢0Cr13NiN, 淬火, 回火, 组织, 力学性能, 耐蚀性

Abstract: Microstructure and properties of low carbon corrosion-resistant die steel 0Cr13NiN under different heat treatment states were studied, and the mechanical properties and pitting resistance were compared with pre-hardened corrosion-resistant die steel 4Cr13. The results show that the annealed microstructure of the 0Cr13NiN steel is mainly composed of ferrite and carbides. Compared to pre-hardened 4Cr13 steel, pre-hardened 0Cr13NiN steel has better pitting resistance and toughness. The recommended pre-hardening heat treatment process for the 0Cr13NiN steel is quenching temperature of 980-1030 ℃, tempering temperature of 520-540 ℃, and tempering twice. The quenched microstructure is martensite +undissolved carbonitride + a small amount of retained austenite, and the tempered microstructure is tempered martensite +primary carbonitride + carbonitride.

Key words: corrosion-resistant die steel 0Cr13NiN, quenching, tempering, microstructure, mechanical properties, corrosion resistance

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