Effect of Rare Earth Ce on Primary Carbides in GCr15 Bearing Steel
CHEN Nan1,2, WANG Zhou1,3,*, CHEN Shuang1, LI Jiwen1,2
1 School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, Henan, China 2 National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Luoyang 471023, Henan, China 3 Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology, Luoyang 471023, Henan, China
Abstract: With therapid development of high-end equipment manufacturing industry in China, the demand and research of high-quality bearing steel is increasingly urgent. Currently, GCr15 bearing steel is one of the most widely used high-carbon chromium bearing steels, the influence of primary carbides on bearing steel and control of primary carbides become more and more important with the continuous improvement of the cleanliness for bearing steel. Therefore, by adding rare earth Ce to GCr15 bearing steel, the effect of rare earth Ce on primary carbides in bearing steel was studied in this work. Thermo-Calc software was applied to thermodynamically analyze the precipitation behavior of primary carbides during solidification of GCr15 bearing steel. XRD, OLS5100 Laser Scanning Confocal Microscope and SEM-EDS were used to analyze the composition and microstructure of primary carbides in GCr15 bearing steel. The results showed that the typical primary carbides in GCr15 bearing steel were M3C, M7C3 and M3C2. The quantity and size of primary carbides could be obviously reduced with reasonable addition of rare earth Ce in GCr15 bearing steel. Especially when the content of rare earth Ce was 320×10-6, the area ratio and maximum size of primary carbides was reduced by 3.22% and 16.21 μm respectively. Moreover, with the increasing addition of rare earth Ce in GCr15 bearing steel, the nucleation core of primary carbides changed from MnS and Al2O3 to Ce-O-S with smaller size, which led to the refinement of primary carbides.
1 Cao W Q, Yu F, Wang C Y, et al. Special Steel, 2021, 42(1), 1(in Chinese). 曹文全, 俞峰, 王存宇, 等. 特殊钢, 2021, 42(1), 1. 2 Yu F, Chen X P, Xu H F, et al. Acta Metallurgica Sinica, 2020, 56(4), 513(in Chinese). 俞峰, 陈兴品, 徐海峰, 等.金属学报, 2020, 56(4), 513. 3 Zhang C L, Zhu Y C, Jiang B. Materials Reports, 2023, 37(6), 138(in Chinese). 张朝磊, 朱禹承, 蒋波. 材料导报, 2023, 37(6), 138. 4 Wang K, Hu F, Zhou W, et al.China Metallurgy, 2020, 30(9), 119(in Chinese). 王坤, 胡锋, 周雯, 等. 中国冶金, 2020, 30(9), 119. 5 Zhong S S, Wang C S.Bearing steel, Metallurgical Industry Press, China, 2000, pp. 7(in Chinese). 钟顺思, 王昌生.轴承钢, 冶金工业出版社, 2000, pp. 7. 6 Webler B A, Pistorius P C. Metallurgical and Materials Transactions B. 2020, 51(6), 2437. 7 Liu Y, Yin Q, Lei F, et al. China Metallurgy, 2020, 30(9), 37(in Chinese). 刘烨, 尹青, 李锋, 等.中国冶金, 2020, 30(9), 37. 8 Wang L, Liu L, Yao T L, et al.Steelmaking, 2018, 34(3), 67(in Chinese). 王乐, 刘浏, 姚同路, 等.炼钢, 2018, 34(3), 67. 9 Ozaki K. Denki-Seiko, 2005, 76(4), 249. 10 Filipovic M, Romhanji E, Kamberovic Z. ISIJ International, 2012, 52(12), 2200. 11 Li Z K, Lei J Z, Xu H F, et al. Journal of Iron and Steel Research, 2016, 28(3), 1(in Chinese). 李昭昆, 雷建中, 徐海峰, 等. 钢铁研究学报, 2016, 28(3), 1. 12 Ning Y L. Reasearch on Microstructure Evolution and Controlling of Network Carbides of GCr15 Bearing Steel. Master's thesis, Jiangsu University, China, 2019 (in Chinese). 宁玉亮. GCr15轴承钢的组织演变及网状碳化物的控制研究.硕士学位论文,江苏大学, 2019. 13 Li S S, Chen Y, Gong T Z, et al. Acta Metallurgica Sinica, 2022, 58(8), 1024(in Chinese). 李闪闪, 陈云, 巩桐兆, 等.金属学报, 2022, 58(8), 1024. 14 Guo J, Yang M S, Lu D H, et al. Journal of Materials Engineering, 2019, 47(7), 134(in Chinese). 郭军, 杨卯生, 卢德宏, 等. 材料工程, 2019, 47(7), 134. 15 Guo J, Zhao A M, Yang M S. International Journal of Fatigue, 2023, 174, 107587. 16 Yang L Q, Xue W H, Gao S Y, et al. International Journal of Fatigue, 2023, 177, 107940. 17 Mao M T, Guo H J, Sun X L, et al.Chinese Journal of Engineering, 2017, 39(8), 1174(in Chinese). 毛明涛, 郭汉杰, 孙晓林, 等. 工程科学学报, 2017, 39(8), 1174. 18 Yang C Y, Zhuang Q, Liu H, et al. China Metallurgy, 2020, 30(9), 45(in Chinese). 杨超云, 庄权, 刘航, 等. 中国冶金, 2020, 30(9), 45. 19 Shi X X, Ren H P, Li X, et al. Chinese Rare Earths, 2021, 42(3), 94(in Chinese). 石晓霞, 任慧平, 李晓, 等. 稀土, 2021, 42(3), 94. 20 Li Y, Du P F, Jiang Z H, et al. Iron & Steel, 2018, 53(10), 32(in Chinese). 李阳, 杜鹏飞, 姜周华, 等. 钢铁, 2018, 53(10), 32. 21 Wang H, Bao Y P, Zhao M, et al. International Journal of Minerals, Metallurgy and Materials, 2019, 26(11), 1372. 22 Huang Y, Cheng G, Zhu M, et al. Metallurgical and Materials Transactions B, 2021, 52(2), 700. 23 Chang L Z, Gao G, Shi X F, et al. The Chinese Journal of Process Engineering, 2019, 19(2), 362(in Chinese). 常立忠, 高岗, 施晓芳, 等. 过程工程学报, 2019, 19(2), 362.
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2025, Vol. 39 
