20MnCr5齿轮钢渗碳层弥散碳化物形成机理

doi:10.13251/j.issn.0254-6051.2022.12.033

金属热处理 ›› 2022, Vol. 47 ›› Issue (12): 196-200.DOI: 10.13251/j.issn.0254-6051.2022.12.033

20MnCr5齿轮钢渗碳层弥散碳化物形成机理

李阳, 侯圣文, 贺尔康, 张晓田

陕西法士特齿轮有限责任公司陕西省齿轮传动重点实验室, 陕西西安 710077

收稿日期:2022-06-30 修回日期:2022-11-06 出版日期:2022-12-25 发布日期:2023-01-05
作者简介:李阳(1991—),女,工程师,硕士,主要研究方向为金属材料热处理、表面处理、齿轮表面强化等,E-mail:yli13s@126.com
基金资助:
陕西省重点研发计划(2021ZDLGY10-06,2021ZDLGY12-03)

Formation mechanism of dispersed carbide in carburized case of 20MnCr5 gear steel

Li Yang, Hou Shengwen, He Erkang, Zhang Xiaotian

Shaanxi Key Laboratory of Gear Transmission, Shaanxi Fast Gear Co., Ltd., Xi'an Shaanxi 710077, China

Received:2022-06-30 Revised:2022-11-06 Online:2022-12-25 Published:2023-01-05

摘要/Abstract

摘要： 采用新开发的弥散渗碳工艺对20MnCr5齿轮钢进行渗碳淬火处理,采用光学显微镜研究析出物的显微组织。结果表明,在齿轮渗碳层一定深度范围内析出了两种不同种类的弥散分布的碳化物,晶界位置主要为大颗粒,其尺寸在1~5 μm;晶内主要为小尺寸碳化物,其尺寸小于1 μm,数量约占80%以上;并揭示了两种不同类型的碳化物的析出机理。

关键词: 渗碳热处理, 弥散碳化物, 尺寸分布, 析出机理

Abstract: 20MnCr5 gear steel was carburized and quenched by the newly developed diffusion carburizing process, and the microstructure of precipitates was studied by means of metallographic microscope. The results show that within a certain depth range of the carburized case, two kinds of carbide with different dispersion distribution are precipitated, which is mainly large particles with a size of 1-5 μm at the grain boundary, while at the intragranular the carbide is mainly small in size, which is less than 1 μm in size and accounts for more than 80%. The precipitation mechanism of two different types of carbides is also revealed.

Key words: carburizing heat treatment, dispersed carbides, size distribution, precipitation mechanism

中图分类号:

TG156

李阳, 侯圣文, 贺尔康, 张晓田. 20MnCr5齿轮钢渗碳层弥散碳化物形成机理[J]. 金属热处理, 2022, 47(12): 196-200.

Li Yang, Hou Shengwen, He Erkang, Zhang Xiaotian. Formation mechanism of dispersed carbide in carburized case of 20MnCr5 gear steel[J]. Heat Treatment of Metals, 2022, 47(12): 196-200.

参考文献

[1]卢金生, 李宝奎. 齿轮的精密热处理及抗疲劳制造探讨 [J]. 机械传动, 2019, 43(3): 170-175.
Lu Jinsheng, Li Baokui. Discussion of precision heat treatment and anti-fatigue manufacturing of gear [J]. Journal of Mechanical Transmission, 2019, 43(3): 170-175.
[2]高玉魁, 赵振业. 齿轮的表面完整性与抗疲劳制造技术的发展趋势 [J]. 金属热处理, 2014, 39(4): 1-6.
Gao Yukui, Zhao Zhenye. Development trend of surface integrity and anti-fatigue manufacture of gears[J]. Heat Treatment of Metals, 2014, 39(4): 1-6.
[3]毛振军. 控制渗碳汽车齿轮及轴磨削裂纹的工艺方法 [J]. 齿轮, 1984(4): 16-20.
[4]张丙静, 石巨岩, 滕尚君. 20Cr钢超饱和渗碳工艺及其渗层组织与耐磨性能 [J]. 金属热处理, 2007, 32(8): 84-86.
Zhang Bingjing, Shi Juyan, Teng Shangjun. Microstructure and wear resistance of supersaturation carburized layer on 20Cr steel [J]. Heat Treatment of Metals, 2007, 32(8): 84-86.
[5]石巨岩, 于静, 田晓青, 等. 20CrMnTi钢超饱和渗碳工艺的研究 [J]. 热加工工艺, 2010, 39(12): 147-149.
Shi Juyan, Yu Jing, Tian Xiaoqing, et al. Study on supersaturated carburization process for 20CrMnTi steel [J]. Hot Working Technology, 2010, 39(12): 147-149.
[6]王介淦, 冯正, 周建初. 齿轮渗碳层碳化物形态对耐磨性和接触疲劳的影响 [J]. 材料工程, 1989(6): 35-40.
Wang Jiegan, Feng Zheng, Zhou Jianchu. Effect of the morphology of carbides in the carburizing case on the wear resistance and the contact fatigue of gears[J]. Journal of Materials Engineering, 1989(6): 35-40.
[7]王博. 高合金轴承钢碳化物演变规律及力学与疲劳性能研究 [D]. 昆明: 昆明理工大学, 2016.
Wang Bo. Study on carbides evolution, mechanical properties, and fatigue properties of high alloy bearing steel [D]. Kunming: Kunming University of Science and Technology, 2016.
[8]杨爽, 谌继明, 付海英, 等. 碳化物弥散强化钢力学性能及微观组织研究 [J]. 核聚变与等离子体物理, 2021, 41(1): 61-66.
Yang Shuang, Chen Jiming, Fu Haiying, et al. Investigation on the microstructure and mechanical properties of carbide dispersion strengthened steel [J]. Nuclear Fusion and Plasma Physics, 2021, 41(1): 61-66.
[9]朱孝录. 齿轮内在品质对齿轮强度和寿命的影响 [J]. 机械传动, 2021, 45(9): 112-118.
Zhu Xiaolu. Influence of internal quality of gear on strength and life of gear [J]. Journal of Mechanical Transmission, 2021, 45(9): 112-118.
[10]戴建科, 韩顺, 厉勇, 等. 航空齿轮钢C69高温渗碳后的组织性能 [J]. 金属热处理, 2022, 47(4): 219-225.
Dai Jianke, Han Shun, Li Yong, et al. Microstructure and properties of C69 gear steel for aviation after high temperature carburizing [J]. Heat Treatment of Metals, 2022, 47(4): 219-225.
[11]牛文明, 张贵阳, 左永平, 等. 18CrNiMo7-6渗碳钢等温正火新工艺探讨 [J]. 金属热处理, 2021, 46(1): 84-87.
Niu Wenming, Zhang Guiyang, Zuo Yongping, et al. Discussion on a new isothermal normalizing process of 18CrNiMo7-6 carburizing steel [J]. Heat Treatment of Metals, 2021, 46(1): 84-87.
[12]徐琛, 陈广兴, 张勇伟, 等. 1.25Cr-0.5Mo钢热处理后的组织与力学性能 [J]. 金属热处理, 2021, 46(6): 200-204.
Xu Chen, Chen Guangxing, Zhang Yongwei, et al. Microstructure and mechanical properties of 1.25Cr-0.5Mo steel after heat treatment [J]. Heat Treatment of Metals, 2021, 46(6): 200-204.
[13]杨扬, 车永平, 李阳. 20MnCr5HHA材料残余奥氏体含量控制的研究 [J]. 热处理技术与装备, 2021, 42(5): 9-13.
Yang Yang, Che Yongping, Li Yang. Study on residual austenite content control in 20MnCr5HHA material[J]. Heat Treatment Technology and Equipment, 2021, 42(5): 9-13.
[14]李建华. 汽车齿轮轮钢20MnCr5及其热处理工艺研究 [D]. 南京: 南京林业大学, 2003.
Li Jianhua. Research on automobile gears teel 20MnCr5 and it's heat treatment technology [D]. Nanjing: Nanjing Forestry University, 2003.

20MnCr5齿轮钢渗碳层弥散碳化物形成机理

Formation mechanism of dispersed carbide in carburized case of 20MnCr5 gear steel

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

编辑推荐

Metrics

本文评价

[1]	谯德高, 罗晓阳, 胡双喜, 侯园园, 张志坚, 唐兴昌. 280VK冷轧高强钢退火过程的组织演变及析出机理[J]. 金属热处理, 2022, 47(9): 220-226.
[2]	桂伟民, 刘义, 周根树, 何亮亮, 王梦梦, 汤文馨. Nb微合金化对Cr-Ni-Mo渗碳齿轮钢组织和性能的影响[J]. 金属热处理, 2021, 46(1): 114-119.