W、Mo含量对1Cr11Ni2W2MoV钢组织与力学性能的影响

doi:10.13251/j.issn.0254-6051.2025.07.004

金属热处理 ›› 2025, Vol. 50 ›› Issue (7): 24-32.DOI: 10.13251/j.issn.0254-6051.2025.07.004

W、Mo含量对1Cr11Ni2W2MoV钢组织与力学性能的影响

欧文超¹, 崔岳峰¹, 韩顺², 闫昆^2,3, 袁小园², 王春旭², 厉勇²

1.中国航发沈阳发动机研究所, 辽宁沈阳 110015;
2.钢铁研究总院有限公司特殊钢研究院, 北京 100081;
3.山东省特种设备检验研究院集团有限公司, 山东济南 250101

收稿日期:2025-04-01 修回日期:2025-06-04 出版日期:2025-07-25 发布日期:2025-07-28
通讯作者: 韩顺,正高级工程师,E-mail:hanshunfa@126.com
作者简介:欧文超(1989—),男,高级工程师,主要研究方向为航空发动机材料设计与应用研究,E-mail:ouwenchao_nwpu@163.com。
基金资助:
国家科技项目(冶23T60650B)

Effect of W and Mo contents on microstructure and mechanical properties of 1Cr11Ni2W2MoV steel

Ou Wenchao¹, Cui Yuefeng¹, Han Shun², Yan Kun²^,3, Yuan Xiaoyuan², Wang Chunxu², Li Yong²

1. AECC Shenyang Engine Research Institute, Shenyang Liaoning 110015, China;
2. Research Institute of Special Steels, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China;
3. Shandong Special Equipment Inspection and Research Institute Group Co., Ltd., Jinan Shandong 250101, China

Received:2025-04-01 Revised:2025-06-04 Online:2025-07-25 Published:2025-07-28

摘要/Abstract

摘要： 设计了不同W和Mo含量的1Cr11Ni2W2MoV试验钢,系统研究了W、Mo对其力学性能和冲击断口、显微组织的影响。结果表明,当W含量分别为0%、1.75%、3%,Mo含量分别为0%、0.43%和0.8%时,试验钢的力学性能随淬火温度和回火温度升高的变化趋势相同,在回火温度相同(淬火温度为1020 ℃)时,试验钢的强度随W、Mo含量的升高而增加,冲击吸收能量则呈先增加后降低的趋势,冲击断口放射区形貌均为准解理特征,放射区所占比例随W、Mo含量的增加先增大后减少。不同W和Mo含量试验钢的组织均为板条马氏体,析出相以细长的棒状M₂C碳化物为主,提高W和Mo含量会促进M₂C型碳化物的析出,但在3W0.43Mo试验钢中观察到损害耐蚀性的铁素体。

关键词: 不锈钢, W含量, Mo含量, 力学性能, 碳化物

Abstract: 1Cr11Ni2W2MoV steels with different contents of W ( 0%, 1.75%, 3% ) and Mo (0%, 0.43%, 0.8%) were designed. The effect of W and Mo on mechanical properties, impact fracture and microstructure of the steels was systematically studied. The results show that for the tested steels with different W and Mo contents, the mechanical properties show the same variation trend with the increase of quenching temperature and tempering temperature. Under the same tempering temperature (quenching at 1020 ℃), the strength of the tested steels increases with the increase of the W and Mo contents, and the impact absorbed energy increases first and then decreases. The radial region of the impact fracture shows quasi-cleavage characteristics, and the proportion of radial region increases first and then decreases with the W and Mo contents increase. The microstructure of the tested steels with different W and Mo contents is lath martensite, and the precipitated phase is dominated by slender rod-like M₂C carbides. The precipitation of M₂C carbides is promoted by the increase of W and Mo contents, but ferrite that damages the corrosion resistance is observed in the 3W0.43Mo steel.

Key words: stainless steel, W content, Mo content, mechanical properties, carbides

中图分类号:

TG161

欧文超, 崔岳峰, 韩顺, 闫昆, 袁小园, 王春旭, 厉勇. W、Mo含量对1Cr11Ni2W2MoV钢组织与力学性能的影响[J]. 金属热处理, 2025, 50(7): 24-32.

Ou Wenchao, Cui Yuefeng, Han Shun, Yan Kun, Yuan Xiaoyuan, Wang Chunxu, Li Yong. Effect of W and Mo contents on microstructure and mechanical properties of 1Cr11Ni2W2MoV steel[J]. Heat Treatment of Metals, 2025, 50(7): 24-32.

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W、Mo含量对1Cr11Ni2W2MoV钢组织与力学性能的影响

Effect of W and Mo contents on microstructure and mechanical properties of 1Cr11Ni2W2MoV steel

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