何潇,吕新杨,吴志伟,赵昆渝,杨卯生

• 1:昆明理工大学材料科学与工程学院
• 2:钢铁研究总院特殊钢所

摘要(Abstract)：

采用扫描电镜及透射电镜等研究了16Cr14Co12Mo5Ni2低碳高合金轴承钢经-80、-196℃分别冷处理2 h与4 h并回火后其碳化物的数量、形态、分布以及基体与碳化物中元素分布特征。结果表明:经-80℃、-196℃分别冷处理2 h与4 h并回火后钢中主要为富Mo、W的M_6C型碳化物,随着冷处理时间的延长与冷处理温度的降低,钢中碳化物数量减少,但颗粒平均直径由230 nm增至310 nm,碳化物所占面积分数增加且碳化物分布更加均匀。Ni、Co在M_6C型碳化物与基体中含量相近,而M_6C型碳化物中Mo含量约为基体的2～5倍。

关键词(KeyWords)： 冷处理;高合金轴承钢;M_6C

Abstract:

Keywords:

基金项目(Foundation): 国家高技术研究发展“863”计划资助项目(201203A503)

作者(Author): 何潇,吕新杨,吴志伟,赵昆渝,杨卯生

DOI: 10.13289/j.issn.1009-6264.2019-0019

参考文献(References)：

• [1] Baldissera P,Delprete C.Deep cryogenic treatment:A bibliographic review[J].Open Mechanical Engineering Journal,2008,2(1):1-11.
• [2] 雍岐龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006:53.
• [3] Hwang K C,Lee S,Lee H C.Effects of alloying elements on microstructure and fracture properties of cast high speed steel rolls:Part II.Fracture behavior[J].Materials Science and Engineering A,1998,254(1/2):296-304.
• [4] Hwang K C,Lee S,Lee H C.Effects of alloying elements on microstructure and fracture properties of cast high speed steel rolls:Part I:Microstructural analysis[J].Materials Science and Engineering A,1998,254(1/2):282-295.
• [5] Gavriljuk V G,Theisen W,Sirosh V V,et al.Low-temperature martensitic transformation in tool steels in relation to their deep cryogenic treatment[J].Acta Materialia,2013,61(5):1705-1715.
• [6] Molinari A,Pellizzari M,Gialanella S,et al.Effect of deep cryogenic treatment on the mechanical properties of tool steels[J].Journal of Materials Processing Technology,2001,118(1):350-355.
• [7] 雷力明,黄旭,孙福生,等.碳化物分布状态对Ti-25V-15Cr-2Al-0.2C-x合金微观组织的影响[J].稀有金属材料与工程,2004,33(6):632-634.LEI Li-ming,HUANG Xu,SUN Fu-sheng,et al.Effect of the distribution state of carbide on microstructure of Ti-25V-15Cr-2Al-0.2C-x alloys[J].Rare Metal Materials and Engineering,2004,33(6):632-634.
• [8] Das D,Dutta A K,Toppo V,et al.,Effect of deep cryogenic treatment on the carbide precipitation and tribological behavior of D2 steel[J].Materials and Manufacturing Processes,2007,22(4):474-480.
• [9] 张红,王立民,王俊杰,等.冷处理温度对1Cr20Co6Ni2WMoV钢组织和硬度的影响[J].材料热处理学报,2008,29(6):62-65.ZHANG Hong,WANG Li-min,WANG Jun-jie,et al.Effect of cold treatment temperature on microstructure and hardness of 1Cr20Co6Ni2WMoV steel[J].Transactions of Materials and Heat Treatment,2008,29(6):62-65.
• [10] Li S,Min N,Li J,et al.Experimental verification of segregation of carbon and precipitation of carbides due to deep cryogenic treatment for tool steel by internal friction method[J].Materials Science and Engineering A,2013,575(7):51-60.
• [11] Tyshchenko A I,Theisen W,Oppenkowski A,et al.Low-temperature martensitic transformation and deep cryogenic treatment of a tool steel[J].Materials Science and Engineering A,2010,527(26):7027-7039.
• [12] Li S,Xiao M G,Ye G M,et al.Effects of deep cryogenic treatment on microstructural evolution and alloy phases precipitation of a new low carbon martensitic stainless bearing steel during aging[J].Materials Science and Engineering A,2018,732:167-177.
• [13] Barrow A T W,Rivera-Díaz-Del-Castillo P E J.Nanoprecipitation in bearing steels[J].Acta Materialia,2011,59(19):7155-7167.
• [14] 李新宇,杨卯生,周晓龙,等.钴和钼对高钴铬钼轴承钢组织及力学性能影响[J].钢铁,2017,52(5):77-86.LI Xin-yu,YANG Mao-sheng,ZHOU Xiao-long,et al.Influence of Co and Mo on microstructure and mechanical properties of bearing steel with high content of cobalt,chromium and molybdenum[J].Iron and Steel,2017,52(5):77-86.
• [15] 王笑天.金属材料学[M].北京:机械工业出版社,1987.
• [16] 倪静安,商少明,翟滨.无机及分析化学[M].北京:化学工业出版社,1998.

文章评论(Comment)：