陈涛,赵爱民,樊红亮,李晓刚,姚舜

• 1:河北工业职业技术学院
• 2:北京科技大学冶金工程研究院

摘要(Abstract)：

针对新设计的一种高碳低合金耐磨钢65MnCr,利用末端淬火实验测得了淬透性曲线,研究了该钢的淬透性;分析了该钢Φ130 mm柱状工件淬火后从表层到心部的相变组织,并测得了从表层到心部的硬度分布。结果表明:该钢的淬透层的深度为48 mm,相比65Mn钢,淬透性得到了很大提高。Φ130 mm柱状工件的65MnCr钢淬火后半马氏体深度距表面约为40 mm,淬硬层硬度达到60~61 HRC。在30~40 mm深度,主要为马氏体和索氏体的混合组织,硬度下降到54 HRC左右。心部组织为索氏体+少量贝氏体+少量的马氏体,硬度大约为48 HRC。

关键词(KeyWords)： 淬透性;淬火组织;厚断面工件;低合金耐磨钢

Abstract:

Keywords:

基金项目(Foundation): 河北省科技计划项目(高淬透性高碳低合金耐磨钢研究:15211031);; 河北工业职业技术学院应用研发中心项目(低合金耐磨钢淬透性预测和成分设计:2015YF01)

作者(Author): 陈涛,赵爱民,樊红亮,李晓刚,姚舜

DOI: 10.13289/j.issn.1009-6264.2016.11.022

参考文献(References)：

• [1]许兴军,徐胜.大直径锻造矿用耐磨钢球的研制[J].金属热处理,2013,38(1):22-25.XU Xin-jun,XU Sheng.Research and manufacture of large diameter forged grinding steel balls for mining[J].Heat Treatment of Metals,2013,38(1):22-25.
• [2]崔忠圻,覃耀春.金属学与热处理[M].北京:机械工业出版社,2010:320.
• [3]王昭东,邓想涛,曹艺,等.新型低成本超高强低合金耐磨钢研究及其工业化应用[J].钢铁,2010,45(8):61-64.WANG Zhao-dong,DENG Xiang-tao,CAO Yi,et al.Development and industrial application of new low alloy abrasion steel with low cost and ultrahigh strength[J].Iron and Steel,2010,45(8):61-64..
• [4]Mejía I,Bedolla-Jacuinde A,Pablo J R..Sliding wear behavior of a high-Mn austenitic twinning induced plasticity(TWIP)steel microalloyed with Nb[J].Wear,2013,301(1):590-597.
• [5]XIAO F,CAO Y,QIAO G,et al.Effect of Nb solute and Nb C precipitates on dynamic or static recrystallization in Nb steels[J].Journal of Iron and Steel Research,International,2012,19(11):52-56.
• [6]Tirumalasetty G K,Van Huis M A,Fang C M,et al.Characterization of Nb C and(Nb,Ti)N nanoprecipitates in TRIP assisted multiphase steels[J].Acta Materialia,2011,59(19):7406-7415.
• [7]温浩宇,马瑜,王联波,等.热处理对中碳低合金耐磨钢组织与耐磨性的影响[J].材料热处理学报,2011,32(12):72-76.WEN Hao-yu,MA Yu,WANG Lian-bo,et al.Influence of heat treatment on microstructure and wear resistance of a medium-carbon-low-alloy wearresistant steel[J].Transactions of Materials and Heat Treatment,2011,32(12):72-76.
• [8]崔崑.钢铁材料及有色金属材料[M].北京:机械工业出版社,1989.
• [9]鲁伟,赵爱民,赵征志,等.65Mn钢连续冷却相变及大尺寸工件淬火组织[J].金属热处理,2012,37(9):28-31.LU Wei,ZHAO Ai-min.ZHAO Zheng-zhi,et al.Continuous cooling transformation and quenched microstructure of big size 65Mn steel parts[J].Heat Treatment of Metals,2012,37(9):28-31.
• [10]樊东黎,潘建生,徐跃明,等.中国材料工程大典:材料的热处理工程[M].北京:化学工业出版社,2006:134.
• [11]陕钰,王纯,蔡庆伍,等.大模块非调质预硬型塑料模具钢的淬透性[J].材料热处理学报,2012,33(7):82-87.SHAN Yu,WANG Chun,CAI Qing-wu,et al.Hardenability of non-quenched pre-hardened steel for large section plastic mould[J].Transactions of Materials and Heat Treatment,2012,33(7):82-87.
• [12]张玉妥,边书,韩维新.25Cr Mo钢端淬试验改进与淬透性分析[J].材料热处理学报,2015,36(2):162-165.ZHANG Yu-tuo,BIAN Shu,HAN Wei-xin.Improvement of end quench test and hardenability analysis of 25Cr Mo steel[J].Transactions of Materials and Heat Treatment,2015,36(2):162-165.
• [13]刘学勤.常用钢淬透性图册[M].北京:化学工业出版社,179.
• [14]才鸿年,马建平.现代热处理手册[M].北京:化学工业出版社,2010.

文章评论(Comment)：