RE变质处理对钨钼系高速钢组织与性能的影响

doi:10.13251/j.issn.0254-6051.2025.09.043

金属热处理 ›› 2025, Vol. 50 ›› Issue (9): 271-277.DOI: 10.13251/j.issn.0254-6051.2025.09.043

RE变质处理对钨钼系高速钢组织与性能的影响

覃信茂¹, 钟丽琼², 杜玮³, 赖伟基⁴, 易艳良⁵

1.安顺学院电子与信息工程学院, 贵州安顺 561000;
2.贵阳学院机械工程学院, 贵州贵阳 550005;
3.武汉纺织大学材料科学与工程学院, 湖北武汉 430200;
4.国机重型装备集团股份有限公司, 四川德阳 618000;
5.暨南大学韶关研究院, 广东韶关 521000

收稿日期:2025-03-26 修回日期:2025-07-24 出版日期:2025-09-25 发布日期:2025-10-13
通讯作者: 易艳良,副教授,博士,E-mail: y_yanliang@163.com
作者简介:覃信茂(1989—),男,副教授,博士,主要研究方向为先进金属材料设计,E-mail: qxm200711@126.com。
基金资助:
贵州省教育厅项目(黔教合KY字[2021]315号);贵州省基础研究计划(黔科合基础-ZK[2024]一般522);广东省基础与应用基础研究基金(2024A1515012353);广州市科技计划(SL2023A04J01261);武汉纺织大学工业雷管智能装配湖北省工程研究中心开放基金(WGK202401002)

Effect of RE modification on microstructure and properties of W-Mo high speed steel

Qin Xinmao¹, Zhong Liqiong², Du Wei³, Lai Weiji⁴, Yi Yanliang⁵

1. School of Electronic and Information Engineering, Anshun University, Anshun Guizhou 561000, China;
2. School of Mechanical Engineering, Guiyang University, Guiyang Guizhou 550005, China;
3. School of Materials Science and Engineering, Wuhan Textile University, Wuhan Hubei 430200, China;
4. SINOMACH Heavy Equipment Group Co., Ltd., Deyang Sichuan 618000, China;
5. Shaoguan Research Institute, Jinan University, Shaoguan Guangdong 521000, China

Received:2025-03-26 Revised:2025-07-24 Online:2025-09-25 Published:2025-10-13

摘要/Abstract

摘要： 通过稀土(Ce、La、Y)变质处理,对钨钼系高速钢中碳化物结构形态进行调控,研究RE变质处理对高速钢组织与性能的影响。结果表明,RE变质处理后,碳化物断网明显,其形状因子K值从0.31增至0.39~0.49,最大增幅58.06%,改善效果顺序依次是Y>La>Ce。高速钢硬度从57.31 HRC增加至61.17~63.31 HRC,冲击吸收能量从4.92 J增至6.59~7.78 J,磨损量从9.43 mg降低至6.13~7.42 mg。La变质处理试样的综合性能最优,硬度为62.48 HRC、冲击吸收能量为6.87 J、磨损量为6.13 mg。

关键词: 高速钢, 碳化物, 稀土元素, 力学性能, 耐磨性

Abstract: By rare earth (Ce, La, Y) modification treatment, microstructure and morphology of carbides in a certain W-Mo high-speed steel were controlled, and the effect of RE modification treatment on the microstructure and properties of high speed steel was studied. The results show that after RE modification treatment, the carbide network is significantly broken, and its shape factor K value increases from 0.31 to 0.39-0.49, with a maximum increase of 58.06%. The order of improvement effect is Y>La>Ce. The hardness of the high speed steel increases from 57.31 HRC to 61.17-63.31 HRC, the impact absorbed energy increases from 4.92 J to 6.59-7.78 J, and the wear loss decreases from 9.43 mg to 6.13-7.42 mg. The comprehensive properties of the La modified specimen is the best, with hardness of 62.48 HRC, impact absorbed energy of 6.87 J, and wear loss of 6.13 mg.

Key words: high speed steel, carbide, rare earth element, mechanical properties, wear resistance

中图分类号:

TG156.3

覃信茂, 钟丽琼, 杜玮, 赖伟基, 易艳良. RE变质处理对钨钼系高速钢组织与性能的影响[J]. 金属热处理, 2025, 50(9): 271-277.

Qin Xinmao, Zhong Liqiong, Du Wei, Lai Weiji, Yi Yanliang. Effect of RE modification on microstructure and properties of W-Mo high speed steel[J]. Heat Treatment of Metals, 2025, 50(9): 271-277.

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RE变质处理对钨钼系高速钢组织与性能的影响

Effect of RE modification on microstructure and properties of W-Mo high speed steel

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