迟宏宵,刘继浩,樊译,周健,马党参

• 1:钢铁研究总院特殊钢研究院

摘要(Abstract)：

采用光学显微镜、Image-proplus 6.0软件图像分析、硬度测试、冲击试验和弯曲试验等研究了不同基体强韧化热处理工艺对Cr12Mo1V1冷作模具钢微观组织和力学性能的影响。结果表明：循环相变多次奥氏体化工艺通过细化晶粒尺寸和碳化物，能够有效提升Cr12Mo1V1钢的强韧性，循环次数和奥氏体化温度对其力学性能影响显著。奥氏体化循环2次比循环3次能够获得更大的性能提升。循环相变奥氏体化能够细化碳化物颗粒，改善碳化物形态，随着循环相变奥氏体化道次以及温度的增加，碳化物的细化效果更显著。循环相变奥氏体化能够细化奥氏体晶粒尺寸，但奥氏体化温度不宜过高，过高的奥氏体化温度导致晶粒长大，首道次奥氏体化温度为1050℃效果最佳。

关键词(KeyWords)： 模具钢;强韧化;碳化物;晶粒细化

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2020YFB0311000)

作者(Author): 迟宏宵,刘继浩,樊译,周健,马党参

DOI: 10.13289/j.issn.1009-6264.2022-0178

参考文献(References)：

• [1] 徐进，姜先畲，陈再枝，等.模具钢[M].北京：冶金工业出版社，1998.XU Jin,JIANG Xian-she,CHEN Zai-zhi,et al.Die and Mould Steel[M].Beijing:Metallurgical Industry Press,1998.
• [2] 陈再枝，蓝德年，马党参.模具钢手册(第二版)[M].北京：冶金工业出版社，2020.CHEN Zai-zhi,LAN De-nian,MA Dang-shen.Die and Mould Steel Manual (Second Edition)[M].Beijing:Metallurgical Industry Press,2020.
• [3] 陈再良，陈蕴博，佟晓辉，等.典型冷作模具钢性能与失效关系的探讨[J].金属热处理，2006,31(2):87-93.CHEN Zai-liang,CHEN Yun-bo,TONG Xiao-hui,et al.Mechanical properties and failure types for cold-working die steels[J].Heat Treatment of Metals,2006,31(2):87-93.
• [4] 冯晓曾，王家瑛，何世禹.提高模具寿命指南[M].北京：机械工业出版社，1998.FENG Xiao-zeng,WANG Jia-ying,HE Shi-yu.Guide for Improving Die Life[M].Beijing:China Machine Press,1998.
• [5] 迟宏宵.Cr8型冷作模具钢高性能化研究[D].昆明：昆明理工大学，2011.CHI Hong-xiao.Study on high performance of Cr8 cold working die steel[D].Kunming:Kunming University of Technology,2011.
• [6] Roberts G A,Cary R A.Tool Steels (Fourth Edition)[M].New York:American Society for Metals,1980.
• [7] 曹文全，俞峰，许达，等.一种高碳铬轴承钢长寿命双细化热处理工艺：中国，CN201811321639.4[P].2019-01-25.CAO Wen-quan,YU Feng,XU Da,et al.A long life double refining heat treatment process for high carbon chromium bearing steel:China,CN201811321639.4[P].2019-01-25.
• [8] Lee K O,Hong S K,Kang Y K,et al.Grain refnement in bearing steels using a double-quenching heat-treatment process[J].International Journal Automotive Technology,2009,10(6):697-702.
• [9] Santos E C,Kida K,Honda T,et al.Fatigue strength improvement of AISI E52100 bearing steel by induction heating and repeated quenching[J].Materials Science,2012,47(5):677-682.
• [10] Cao Z X,Shi Z Y,Yu F,et al.E?ects of double quenching on fatigue properties of high carbon bearing steel with extra-high purity[J].International Journal of Fatigue,2019,128(11):1-6.
• [11] 杨方亮，周旺松，曹文全，等.快速循环相变对GCr15SiMn钢组织和性能的影响[J].钢铁研究学报，2015,27(7):68-72.YANG Fang-liang,ZHOU Wang-song,CAO Wen-quan,et al.Effect of rapid cycling phase transformation on microstructure and properties of GCr15SiMn steel[J].Journal of Iron and Steel Research,2015,27(7):68-72.
• [12] 占礼春，马党参，迟宏宵，等.冷作模具钢奥氏体化过程的碳化物溶解情况[J].钢铁研究学报，2012,24(10):29-32.ZHAN Li-chun,MA Dang-shen,CHI Hong-xiao,et al.Study on carbides dissolution of cold work die steels during austenitizing[J].Journal of Iron and Steel Research,2012,24(10):29-32.
• [13] 刘继浩，迟宏宵，曹建春，等.Cr12Mo1V1钢组织的高温转变行为[J].钢铁研究学报，2019,31(5):500-506.LIU Ji-hao,CHI Hong-xiao,CAO Jian-chun,et al.High temperature phase transition behavior of Cr12Mo1V1 steel[J].Journal of Iron and Steel Research,2019,31(5):500-506.
• [14] 马前，柳百成，王兆昌.Fe-C合金高温保温过程中碳化物表面形貌连续变化的研究[J].钢铁，1994,29(5):45-49.MA Qian,LIU Bai-cheng,WANG Zhao-chang.Study of the continuous morphological changes of carbide during high temperature holding of Fe-C alloys[J].Iron and Steel,1994,29(5):45-49.
• [15] Ma Q.In-situ observations of the dissolution of carbides in an Fe-Cr-C alloy[J].Scripta Materialia,1999,41(12):1301-1309.
• [16] 迟宏宵，马党参，徐辉霞，等.凝固速率对M2高速工具钢铸态组织的影响[J].材料热处理学报，2017,38(1):94-99.CHI Hong-xiao,MA Dang-shen,XU Hui-xia,et al.Effect of solidification rate on as-cast microstructure of M2 high speed steel[J].Transactions of Materials and Heat Treatment,2017,38(1):94-99.
• [17] Zhou X F,Fang F,Li F,et al.Morphology and microstructure of M2C carbide formed at different cooling rates in AISI M2 high speed steel[J].Journal of Materials Science,2011,46(5):1196-1202.
• [18] Fredriksson H,Hillert M,Nica M.Decomposition of the M2C carbide in high-speed steel[J].Scandinavian Journal of Metallurgy,1979,8(3):115-122.
• [19] 周雪峰，方峰，蒋建清.冷却速度对高速钢M2C共晶碳化物的影响[J].铸造，2008,57(7):658-660.ZHOU Xue-feng,FANG Feng,JIANG Jian-qing.Effect of cooling rates on M2C eutectic carbides in high speed steel[J].Foundry,2008,57(7):658-660.
• [20] Hoyle G.High Speed Steel[M].London:London Boston Durban Singapore Sydney Toronto Wellington,1988.
• [21] Fukaura K,Yokoyama Y,Yokoi D,et al.Fatigue of cold-work tool steels:Effect of heat treatment and carbide morphology on fatigue crack formation,life,and fracture surface observations[J].Metallurgical and Materials Transactions A,2004,35:1289-1300.
• [22] Payson P.The Metallurgy of Tool Steels[M].New York:John Wiley and Sons Inc.,1962.
• [23] Furuhara T,Kikumoto K,Saito H,et al.Phase transformation from fine-grained austenite[J].ISIJ International,2008,48(8):1038-1045.
• [24] Lv L F,Fu L M,Sun Y L.Microstructure and mechanical behavior of ultra-high strength of fine-grained AISI 4140 steel[J].Materials Research Innovations,2015,19(S4):64-67.
• [25] 罗文英，蒋静，刘宪民，等.18Ni马氏体时效钢循环相变细晶工艺研究[J].热加工工艺，2012,41(16) :194-199.LUO Wen-ying,JIANG Jing,LIU Xian-min,et al.Study on grain refinement of 18Ni maraging steel by cyclic transformation[J].Hot Working Technology,2012,41(16):194-199.
• [26] 陈建刚，卢凤双，张敬霖，等.循环热处理对3J33(C)马氏体时效钢组织、性能的影响[J].金属功能材料，2010,17(2):16-19.CHEN Jian-gang,LU Feng-shuang,ZHANG Jing-lin,et al.Influence of gradient cyclic heat treatment on microstructure and properties of 3J33(C) maraging steel[J].Metallic Functional Materials,2010,17(2):16-19.
• [27] 吕政，任学平，李志宏，等.循环热处理对Ti-V微合金钢组织和力学性能的影响[J].材料研究学报，2015,29(3):227-234.Lü Zheng,REN Xue-ping,LI Zhi-hong,et al.Effect of cyclic heat treatment on microstructure and mechanical properties of Ti-V microalloyed steel[J].Chinese Journal of Materials Research,2015,29(3):227-234.
• [28] 陈广兴，张勇伟，许晓嫦，等.循环热处理对1Cr-0.5Mo钢碳化物演变和冲击韧性的影响[J].材料工程，2020,48(12):135-140.CHEN Guang-xing,ZHANG Yong-wei,XU Xiao-chang,et al.Effect of cyclic heat treatment on carbides evolution and impact toughness of 1Cr-0.5Mo steel[J].Journal of Materials Engineering,2020,48(12):135-140.

文章评论(Comment)：