刘玉,左训伟,陈乃录,戎詠华,刘少俊

• 1:上海交通大学材料科学与工程学院
• 2:上海工程技术大学材料工程学院
• 3:中煤科工集团重庆研究院有限公司

摘要(Abstract)：

淬火纵向裂纹在热处理工业中十分常见。本工作结合实验和有限元模拟的方法对16 mm直径的42CrMo圆柱件在不同的淬火介质(清水、油、盐水单液淬火和清水-油双液淬火)及淬火工艺下的淬火开裂现象进行了研究。经过清水淬火后的圆柱件均出现了纵向裂纹,但经油、盐水和清水-油双液淬火后的试样均未出现裂纹。通过有限元方法对以上不同淬火工艺的淬火应力进行了计算,根据计算结果对全淬透淬火件的淬火应力分布进行了分析。残余应力计算结果表明,42CrMo圆柱件在清水中淬火开裂的原因是由其表面较高的拉应力引起;经盐水淬火后的试样表面应力状态为压应力,其对淬火开裂的预防具有有益作用。基于淬火开裂实验和热应力及相变应力的计算结果,提出了两种预防全淬透件纵向开裂的方法。通过分析样品在清水淬火时的瞬时应力,对淬火开裂时的时间进行了估计。

关键词(KeyWords)： 淬火纵向裂纹;有限元模拟;淬火应力

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金青年科学基金(51801125);国家自然科学基金(51771114);; 中国博士后科学基金(2017M621464)

作者(Author): 刘玉,左训伟,陈乃录,戎詠华,刘少俊

DOI: 10.13289/j.issn.1009-6264.2018-0436

参考文献(References)：

• [1] Jung M,Kang M,Lee Y K.Finite-element simulation of quenching incorporating improved transformation kinetics in a plain medium-carbon steel[J].Acta Materialia,2012,60(2):525-536.
• [2] Isomura R,Sato H.On quench-cracking phenomena as viewed from the aspect of quenching stresses[J].Journal of the Japan Institute of Metals,1961,25(5):360-364.
• [3] Arimoto K,Lambert D,Lee K,et al.Prediction of quench cracking by computer simulation[C]//19th ASM Heat Treating Society Conference Proceedings Including Steel Heat Treating in the New Millennium,2001:435-440.
• [4] Arimoto K,Ikuta F,Horino T,et al.Preliminary study to identify criterion for quench crack prevention by computer simulation[J].Transactions of Materials and Heat Treatment,2004,25(5):486-493.
• [5] Scott H.Origin of quenching cracks[J].Scientific Papers of the Bureau of Standards,1925,20:399-444.
• [6] Moore M G,Evans W P.Mathematical correction for stress in removed layers in X-Ray diffraction residual stress analysis[J].SAE Transactions,1958,66:340-345.
• [7] Inoue T,Arimoto K.Development and implementation of cae system “hearts” for heat treatment simulation based on metallo-thermo-mechanics[J].Journal of Materials Engineering and Performance,1997,6(1):51-60.
• [8] Denis S,Sj?str?m S,Simon A.Coupled temperature,stress,phase transformation calculation[J].Metallurgical Transactions A,1987,18(7):1203-1212.
• [9] Liu Y,Qin S W,Zhang J Z,et al.Influence of transformation plasticity on distribution of internal stress in three water-quenched cylinders[J].Metallurgical and Materials Transactions A,2017,48(10):4943-4956.
• [10] Liu Y,Qin S W,Hao Q G,et al.Finite element simulation and experimental verification of internal stress of quenched AISI 4140 cylinders[J].Metallurgical and Materials Transactions A,2017,48(3):1402-1413.
• [11] Non-Destructive Testing-Test Method for Residual Stress Analysis by X-ray Diffraction[S].European Standard EN15305,2008.
• [12] Leblond J B,Mottet G,Devaux J,et al.Mathematical models of anisothermal phase transformations in steels,and predicted plastic behaviour[J].Materials Science and Technology,1985,1(10):815-822.
• [13] Bejan A,Kraus A D.Heat Transfer Handbook[M].New Jersey:John Wiley and Sons,2003.
• [14] Lee S J.Evaluation of empirical kinetics models of athermal martensite transformation in plain carbon and low alloy steels[J].Advanced Materials Research,2013,798-799:39-44.
• [15] Koistinen D P,Marburger R E.A general equation prescribing the extent of the austenite-martensite transformation in pure iron-carbon alloys and plain carbon steels[J].Acta Metallurgica,1959,7(1):59-60.
• [16] Van Bohemen S M C,Sietsma J.Effect of composition on kinetics of athermal martensite formation in plain carbon steels[J].Materials Science and Technology,2009,25(8):1009-1012.
• [17] Austin J B,Rickett R L.Kinetics of the decomposition of austenite at constant temperature[J].Transactions of the American Institute of Mining and Metallurgical Engineers,1939,135:396-415.
• [18] George F V V(Eds.).Atlas of Time-Temperature Diagrams for Irons and Steels[M].ASM International,Materials Park,Ohio,1991.
• [19] Scheil V E.Anlaufzeit der austenitumwandlung[J].Archiv fur das Eisenhuttenwesen,1935,12:565-567.
• [20] Fischer F D,Reisner G,Werner E,et al.A new view on transformation induced plasticity (TRIP)[J].International Journal of Plasticity,2000,16(7/8):723-748.
• [21] Fischer F D,Sun Q P,Tanaka K.Transformation-induced plasticity (TRIP)[J].Applied Mechanics Reviews,1996,49(6):317-364.
• [22] Liu C C,Yao K F,Xu X J,et al.Models for transformation plasticity in loaded steels subjected to bainitic and martensitic transformation[J].Materials Science and Technology,2001,17(8):983-988.
• [23] Leblond J B,Devaux J,Devaux J C.Mathematical modelling of transformation plasticity in steels I:Case of ideal-plastic phases[J].International Journal of Plasticity,1989,5(6):551-572.
• [24] 孙盛玉.热处理裂纹若干问题的初步探讨[J].金属热处理,2009,34(10):109-114.SUN Sheng-yu.Preliminary discuss on some problems of heat treatment cracks[J].Heat Treatment of Metals,2009,34(10):109-114.
• [25] 钢的热处理裂纹和变形编写组.钢的热处理裂纹和变形[M].北京:机械工业出版,1978.
• [26] 吕利太.淬火介质[M].北京:中国农业机械出版社,1982.
• [27] 牟能文,刘晓磊.减少45钢淬火开裂[J].四川兵工学报,2009,30(5):93-95.MOU Neng-wen,LIU Xiao-lei.Avoiding of quenching crack of 45 steel[J].Sichuan Ordnance Journal,2009,30(5):93-95.

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