预氧化+稀土铈对42CrMo钢离子渗氮的影响

doi:10.13251/j.issn.0254-6051.2021.05.031

金属热处理 ›› 2021, Vol. 46 ›› Issue (5): 186-189.DOI: 10.13251/j.issn.0254-6051.2021.05.031

预氧化+稀土铈对42CrMo钢离子渗氮的影响

李双喜¹, 陈琳¹, 汪美桃², 闫志强¹

1.河南机电职业学院, 河南郑州 451191;
2.江苏省徐州技师学院, 江苏徐州 221000

收稿日期:2020-10-21 出版日期:2021-05-25 发布日期:2021-07-21
作者简介:李双喜(1980—),男,高级工程师,博士,主要研究方向为金属材料热处理工艺,E-mail:15890605077@163.com。

Effect of pre-oxidation and rare earth cerium on plasma nitriding of 42CrMo steel

Li Shuangxi¹, Chen Lin¹, Wang Meitao², Yan Zhiqiang¹

1. Henan Vocational College of Mechanical and Electrical Engineering, Zhengzhou Henan 451191, China;
2. Xuzhou Technician College of Jiangsu Province, Xuzhou Jiangsu 221000, China

Received:2020-10-21 Online:2021-05-25 Published:2021-07-21

摘要/Abstract

摘要： 针对离子渗氮渗层浅及生产周期长等技术难题,采用预氧化与稀土复合催渗对工程常用结构钢42CrMo进行了离子渗氮。利用显微硬度计、光学显微镜(OM)、扫描电镜(SEM)等对渗氮速率、渗氮层组织、表面形貌等进行了系统的研究。结果表明,经400 ℃×1 h氧化+0.6 cm²/kg(铈表面积/装炉量)稀土的复合催渗工艺具有最佳催渗效果;与无催渗试样相比,优化后的复合催渗不仅提高了渗氮效率,同时减少了脉状氮化物,且降低了渗氮层的硬度梯度。

关键词: 离子渗氮, 渗氮速率, 复合催渗

Abstract: To solve the technical problems such as shallow nitrided layer and long production cycle, the commonly used structural steel 42CrMo was plasma nitrided by pre-oxidation and rare earth complex activated nitriding. The nitriding rate, the microstructure of the nitrided layer and surface morphologies were studied systematically by using microhardness tester, optical microscope (OM), and scanning electron microscope (SEM). The results show that the best nitriding effect can be realized by pre-oxidation at 400 ℃ for 1 h+complex activated nitriding process with 0.6 cm²/kg(cerium surface area/charging weight). Compared with that without activated nitriding, the optimized complex activated nitriding not only improves the nitriding efficiency but also eliminates vein-like nitride, reduces the hardness gradient of the nitrided layer.

Key words: plasma nitriding, nitriding rate, complex activated nitriding

中图分类号:

TG156

李双喜, 陈琳, 汪美桃, 闫志强. 预氧化+稀土铈对42CrMo钢离子渗氮的影响[J]. 金属热处理, 2021, 46(5): 186-189.

Li Shuangxi, Chen Lin, Wang Meitao, Yan Zhiqiang. Effect of pre-oxidation and rare earth cerium on plasma nitriding of 42CrMo steel[J]. Heat Treatment of Metals, 2021, 46(5): 186-189.

参考文献

[1]卢金生, 陈国民. 渗氮齿轮与渗碳齿轮的技术及经济性对比[J]. 金属热处理, 2010, 35(3): 25-28.
Lu Jinsheng, Chen Guomin. Technical and economic comparison of nitrided gear and carburized gear[J]. Heat Treatment of Metals, 2010, 35(3): 25-28.
[2]Gao Y K. Fatigue limit of chemical heat treated specimens and effect of shot peening[J]. Surface Engineering, 2008, 24(5): 322-326.
[3]李双喜, 孙启锋, 王鑫, 等. 38CrMoAl钢表面离子渗氮层剥落原因分析[J]. 金属热处理, 2019, 44(2): 223-226.
Li Shuangxi, Sun Qifeng, Wang Xin, et al. Peeling cause analysis of ion-nitrided layer on 38CrMoAl steel surface[J]. Heat Treatment of Metals, 2019, 44(2): 223-226.
[4]付海峰, 李俏, 徐跃明. 重载齿轮热处理及应用[J]. 金属热处理, 2020, 45(3): 178-185.
Fu Haifeng, Li Qiao, Xu Yueming. Heat treatment technologies and its application of heavy duty gears[J]. Heat Treatment of Metals, 2020, 45(3): 178-185.
[5]Sun Y, Bell T. Plasma surface engineering of low alloy steel[J]. Materials Science and Engineering A, 1991, 140: 419-434.
[6]Hamidreza Riazi, Fakhreddin Ashrafizadeh, Sayed Rahman Hosseini, et al. Influence of simultaneous aging and plasma nitriding on fatigue performance of 17-4PH stainless steel[J]. Materials Science and Engineering A, 2017, 703: 262-269.
[7]梁军, 卢艳君. 离子渗氮技术的研究和工艺[J]. 机械设计与制造, 2001, 2(1): 73-74.
[8]Edenhofer B. Physical and metallurgical aspects of ion nitriding[J]. Heat Treatment of Metals, 1974, 1: 23-28.
[9]季中辉. 离子氮化在汽车齿轮批量生产中的应用[J]. 制造业自动化, 2011, 33(14): 59-63.
Ji Zhonghui. Application of ion nitriding in mass production of automotivegears[J]. Manufacturing Automation, 2011, 33(14): 59-63.
[10]周孝重, 陈大凯. 等离子体热处理技术[M]. 北京: 机械工业出版社, 1990: 80-85.
[11]Borges J N, Belmonte T, Jaoul C, et al. Study of the transition from oxidation to nitriding in a single N₂-H₂-O₂ post-discharge[J]. Surface and Coatings Technology, 2005, 193(1-3): 132-136.
[12]Rocha A, Strohaecker T, Hirsch T. Effect of different surface states before plasma nitriding on properties and machining behavior of M2 high-speed steel[J]. Surface and Coatings Technology, 2003, 165(2): 176-185.
[13]刘迨, 荀毓闽. 关于氮化层中脉状组织的探讨[J]. 金属热处理, 1979(1): 15-23.

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预氧化+稀土铈对42CrMo钢离子渗氮的影响

Effect of pre-oxidation and rare earth cerium on plasma nitriding of 42CrMo steel

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