渗碳层厚度对18Cr2Ni4WA钢齿轮淬火畸变影响的模拟研究

doi:10.13251/j.issn.0254-6051.2021.12.045

金属热处理 ›› 2021, Vol. 46 ›› Issue (12): 268-275.DOI: 10.13251/j.issn.0254-6051.2021.12.045

渗碳层厚度对18Cr2Ni4WA钢齿轮淬火畸变影响的模拟研究

孔令利¹, 贺瑞军¹, 李贵发²

1.北京航空材料研究院, 北京 100095;
2.南昌航空大学材料科学与工程学院, 江西南昌 330063

收稿日期:2021-06-25 出版日期:2021-12-25 发布日期:2022-02-18
作者简介:孔令利(1988—),男,工程师,硕士,主要研究方向为真空热处理工艺、热处理设备性能测试与现场质量管理,E-mail:konglingli1988@126.com
基金资助:
北京航空材料研究院创新基金(KJSZ190307)

Simulated research on influence of carburized layer thickness on quenching distortion of 18Cr2Ni4WA steel gear

Kong Lingli¹, He Ruijun¹, Li Guifa²

1. Beijing Institute of Aeronautical Materials, Beijing 100095, China;
2. School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang Jiangxi 330063, China

Received:2021-06-25 Online:2021-12-25 Published:2022-02-18

摘要/Abstract

摘要： 采用有限元模拟软件,对热处理气淬过程中渗碳层对18Cr2Ni4WA钢弧形齿轮温度场、应力场、应变场的影响进行了分析,并结合第一性原理方法对其作用机制进行了探索。结果表明:渗碳层厚度对18Cr2Ni4WA钢弧形齿轮温度场的影响较小,但是应力场结果显示当渗碳层厚度小于0.5 mm时,齿顶表面应力波动明显,齿顶表面的应力由渗碳层厚度0.1 mm的86.7 MPa增加至2.0 mm的278.6 MPa。应变场结果表明在渗碳层厚度为2.0 mm时,齿顶表面等效应变初始值达到2%。第一性原理计算结果显示随着碳浓度的增加,Fe-Fe原子之间的成键强度消弱,新形成的Fe-C键和Cr-C键明显增强,而且Fe与C原子之间电子密度呈明显的方向性。Fe-Fe键的消弱导致18Cr2Ni4WA钢的膨胀系数会随碳浓度增大而增大,因此齿轮因渗碳层过厚而产生的升温畸变在气淬降温阶段并不能恢复,从而加大齿轮尺寸跳动。

关键词: 渗碳, 18Cr2Ni4WA钢, 齿轮, 淬火畸变, 模拟研究

Abstract: Influence of carburized layer on the temperature field, stress field and strain field of the 18Cr2Ni4WA steel arc-gear during gas quenching process was analyzed by means of finite element simulation software, and the action mechanism was explored further in combination with the first-principles method. The results show that the influence of depth of carburized layer on the temperature field of 18Cr2Ni4WA arc gear is small. But the stress field of surface layer in gear fluctuates is obvious when the depth of carburized layer is smaller than 0.5 mm, which increases from 86.7 MPa at the thickness 0.1 mm of the carburized layer to 278.6 MPa at 2.0 mm. The results of the strain field show that when the thickness of the carburized layer is 2.0 mm, the initial value of the equivalent strain on the surface of tooth top reaches 2%. The first-principles calculation results show that with the increase of carbon concentration, the bond strength between Fe-Fe atoms weakens. However, the newly formed Fe-C bond and Cr-C bond are obviously strengthened, and the electron density between Fe and C atoms shows obvious directionality. Therefore, the weakness of the Fe-Fe bond causes expansion coefficient of the 18Cr2Ni4WA steel to increase with the addition of carbon concentration. Then it will cause the heating-up distortion of the gear be not capable of recovering during the gas quenching and cooling process for its excessively thick carburized layer. As a result, the fluctuation of gear geometric dimension will be aggravated obviously.

Key words: carburized, 18Cr2Ni4WA steel, gear, quenching distortion, simulated research

中图分类号:

孔令利, 贺瑞军, 李贵发. 渗碳层厚度对18Cr2Ni4WA钢齿轮淬火畸变影响的模拟研究[J]. 金属热处理, 2021, 46(12): 268-275.

Kong Lingli, He Ruijun, Li Guifa. Simulated research on influence of carburized layer thickness on quenching distortion of 18Cr2Ni4WA steel gear[J]. Heat Treatment of Metals, 2021, 46(12): 268-275.

参考文献

[1]Wang B, He Y P, Liu Y, et al. Mechanism of the microstructural evolution of 18Cr2Ni4WA steel during vacuum low-pressure carburizing heat treatment and its effect on case hardness[J]. Materials, 2020, 13(10): 2352.
[2]朱瑞芳, 刘永刚. 冷处理和深冷处理在渗碳齿轮件中的应用[J]. 金属热处理, 2020, 45(6): 77-80.
Zhu Ruifang, Liu Yonggang. Application of subzero and cryogenic treatment in carburized gear parts[J]. Heat Treatment of Metals, 2020, 45(6): 77-80.
[3]Yang J J, Pang K J. Elastoplastic behavior of case-Carburized 18Cr2Ni4WA steel by indenter testing[J]. Journal of Aerospace Engineering, 2019, 32(4): 04019045.
[4]许鸿翔, 王红伟, 张衡, 等. 20Cr2Ni4钢齿轮渗碳淬火及装配后开裂原因分析[J]. 金属热处理, 2021, 46(8): 250-253.
Xu Hongxiang, Wang Hongwei, Zhang Heng, et al. Crack analysis of case-hardened 20Cr2Ni4 steel gear after assembly[J]. Heat Treatment of Metals, 2021, 46(8): 250-253.
[5]Xia C B, Tu M W, Pan Q J, et al. Performance and property of Ni base coatings by using plasma arc technology for 18Cr2Ni4WA steel repairing[J]. Advanced Materials Research, 2011, 1165: 311-315.
[6]Song S Q, Cui X F, Jin Guo, et al. Effect of N+Cr ions implantation on corrosion and tribological properties in simulated seawater of carburized alloy steel[J]. Surface and Coatings Technology, 2020, 385: 125357.
[7]Wang B, He Y P, Liu Y, et al. Thermodynamics of phase transformation and microstructure evolution of 18Cr2Ni4WA carburized steel during high-Temperature tempering[J]. Steel Research International, 2020, 91(8): 2000094.
[8]雷艳惠, 王鹏彬. 18Cr2Ni4WA 钢旋耕机大模数齿轮热处理工艺研究[J]. 金属制品, 2016, 42(3): 13-15, 23.
Lei Yanhui, Wang Pengbin. Study on heat treatment process of large module gear for 18Cr2Ni4WA steel rotary tiller[J]. Steel Wire Products, 2016, 42(3): 13-15, 23.
[9]赵荣达, 刁瑞佳, 靳琳琳, 等. 淬火-配分(Q-P)热处理对18Cr2Ni4W钢渗碳层组织和硬度的影响[J]. 金属热处理, 2016, 41(2): 159-162.
Zhao Rongda, Diao Ruijia, Jin Linlin, et al. Effect of quenching-partitioning(Q-P) heat treatment on microstructure and hardness of carburized layer on 18Cr2Ni4W stee[J]. Heat Treatment of Metals, 2016, 41(2): 159-162.
[10]李锋, 王新宇, 李世键, 等. 18Cr2Ni4WA 钢衬套的精密气体渗碳淬火热处理[J]. 金属热处理, 2016, 41(4): 154-157.
Li Feng, Wang Xinyu, Li Shijian, et al. Precise gas carburizing quenching process of 18Cr2Ni4WA steel bushes[J]. Heat Treatment of Metals, 2016, 41(4): 154-157.
[11]曾宪波, 彭平. α₂-Ti-25Al-xNb合金力学性质的第一原理计算[J]. 金属学报, 2009, 45(9): 1049-1056.
Zeng Xianbo, Peng Ping. Calculation of mechanical properties of α₂-Ti-25Al-xNb alloys by first-principles[J]. Acta Metallurgica Sinica, 2009, 45(9): 1049-1056.
[12]丁立勇. 强约束条件下伞齿轮淬火工艺仿真及其变形控制[D]. 哈尔滨: 哈尔滨工业大学, 2012.
[13]Perdew J P, Burke K, Ernzerhof M. Generalized gradient approximation made simple[J]. Physical Review Letters, 1996, 77(18): 3865-3868.
[14]朱景川, 丁立勇, 刘勇, 等. 伞齿轮淬火变形的有限元模拟[J]. 黑龙江冶金, 2013, 33(1): 1-7.
Zhu Jingchuan, Ding Liyong, Liu Yong, et al. Numerical simulation of the molded quenching process of bevel gear and distortion minimization[J]. Metallurgy and Materials, 2013, 33(1): 1-7.
[15]Li Chonghe, Wu Ping. Empirical relation of melting temperatures of CsCl-type intermetallic compounds to their cohesive energies[J]. Chemistry Materials, 2002, 14(11): 4833-4836.
[16]Guinea F, Rose J H, Smith J R, et al. Scaling relations in the equation of state, thermal expansion, and melting of metals[J]. Applied Physics Letters, 1984, 44(1): 53-55.
[17]Segall M D, Shah R, Pickard C J, et al. Population analysis of plane-wave electronic structure calculations of bulk materials[J]. Physical Review B, 1996, 54(23): 16317-16320.

渗碳层厚度对18Cr2Ni4WA钢齿轮淬火畸变影响的模拟研究

Simulated research on influence of carburized layer thickness on quenching distortion of 18Cr2Ni4WA steel gear

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