Cr-Ni-Mo系齿轮钢的淬透性及其影响因素

doi:10.13251/j.issn.0254-6051.2025.06.001

金属热处理 ›› 2025, Vol. 50 ›› Issue (6): 1-5.DOI: 10.13251/j.issn.0254-6051.2025.06.001

• 材料研究 • 下一篇

Cr-Ni-Mo系齿轮钢的淬透性及其影响因素

何肖飞¹, 陈武², 徐乐¹, 王文军³

1.钢铁研究总院有限公司特殊钢研究院, 北京 100081;
2.钢研纳克检测技术股份有限公司, 北京 100081;
3.中信金属股份有限公司, 北京 100004

收稿日期:2024-12-29 修回日期:2025-03-18 出版日期:2025-06-25 发布日期:2025-07-08
作者简介:何肖飞(1986—),男,高级工程师,博士,主要研究方向为材料研发及冶金质量控制,E-mail: xiaofei6423@126.com
基金资助:
中国钢研科技集团有限公司自主研发项目(JTOM-22012);中信集团重大科技创新项目(2022ZXKYA06100)

Hardenability of Cr-Ni-Mo gear steel and its influencing factors

He Xiaofei¹, Chen Wu², Xu Le¹, Wang Wenjun³

1. Research Institute of Special Steels, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China;
2. NCS Testing Technology Co., Ltd., Beijing 100081, China;
3. CITIC Metals Co., Ltd., Beijing 100004, China

Received:2024-12-29 Revised:2025-03-18 Online:2025-06-25 Published:2025-07-08

摘要/Abstract

摘要： 以3种Cr-Ni-Mo系齿轮钢为研究对象,通过端淬试验和JMatPro软件计算两种方式获得了3种Cr-Ni-Mo系试验钢的淬透性。结果表明,SAE8620钢淬透性最高,3420H钢次之,20CrNiMo钢最低。另外,通过模型定量研究了C、Mn、Cr、Ni、Mo等元素含量变化和奥氏体晶粒度级别变化对Cr-Ni-Mo系齿轮钢距淬火端9 mm位置淬透性的影响,结果显示C、Mn、Cr、Ni、Mo含量每提高0.01%,距淬火端9 mm位置硬度分别增加约0.52、0.14、0.27、0.12和0.33 HRC,而随奥氏体晶粒度级别的增加,Cr-Ni-Mo系齿轮钢距淬火端9 mm位置硬度整体呈现先下降后稳定的趋势。

关键词: Cr-Ni-Mo齿轮钢, 淬透性, 成分, 晶粒度

Abstract: Three Cr-Ni-Mo gear steels were studied, and their hardenability results were obtained through Jominy test and JMatPro calculation. The results show that SAE8620 steel has the highest hardenability, followed by 3420H steel, and 20CrNiMo steel has the lowest hardenability. In addition, the effects of changes in element content such as C, Mn, Cr, Ni, Mo, and austenite grain size level on the hardenability at 9 mm away from the quenching end of the Cr-Ni-Mo gear steel were quantitatively studied through model calculations. The results show that for each 0.01% increase in C, Mn, Cr, Ni, and Mo content, the hardness at 9 mm away from the quenching end is increased by about 0.52, 0.14, 0.27, 0.12 and 0.33 HRC, respectively. Moreover, as the austenite grain size level increases, the hardness of the Cr-Ni-Mo gear steel at 9 mm away from the quenching end shows an overall trend of first decreasing and then stabilizing.

Key words: Cr-Ni-Mo gear steel, hardenability, composition, grain size

中图分类号:

TG142

何肖飞, 陈武, 徐乐, 王文军. Cr-Ni-Mo系齿轮钢的淬透性及其影响因素[J]. 金属热处理, 2025, 50(6): 1-5.

He Xiaofei, Chen Wu, Xu Le, Wang Wenjun. Hardenability of Cr-Ni-Mo gear steel and its influencing factors[J]. Heat Treatment of Metals, 2025, 50(6): 1-5.

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Cr-Ni-Mo系齿轮钢的淬透性及其影响因素

Hardenability of Cr-Ni-Mo gear steel and its influencing factors

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