樊艳秋,马长文,李少坡,张海,王海宝

• 1:首钢技术研究院

摘要(Abstract)：

采用光学显微镜和拉伸试验机等研究了高强度钢板经500、550、600和650℃回火后的显微组织和力学性能,并利用透射电镜对其析出物(尤其是纳米级ε-Cu析出物)进行了观察。结果表明:试验高强度钢板的显微组织以贝氏体为主;随回火温度的升高,其强度先上升后下降并在600℃达到了峰值,强度的变化主要归因于析出物的不同析出特点;大量弥散、均匀分布的纳米级ε-Cu析出物是试验高强度钢板在600℃回火后具有良好强度和韧性的主要原因。

关键词(KeyWords)： 析出;高强度钢板;温度

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 樊艳秋,马长文,李少坡,张海,王海宝

DOI: 10.13289/j.issn.1009-6264.2018-0457

参考文献(References)：

• [1] 康永林,陈庆军王克鲁,等.700 MPa级低碳贝氏体钢的热处理工艺研究[J].材料热处理学报,2005,26(3):96-99.KANG Yong-lin,CHEN Qing-jun,WANG Ke-lu,et al.The heat treatment technique research of 700 MPa low carbon bainite steel[J].Transactions of Materials and Heat Treatment,2005,26(3):96-99.
• [2] Wang C F,Wang M Q,Shi J.Effect of microstructure refinement on the strength and toughness of low alloy martensitic steel[J].Journal of Materials Science and Technology,2007,23(5):35-40.
• [3] 贺信莱,尚成嘉,杨善武,等.高性能低碳贝氏体钢[M].北京:冶金工业出版社,2008:224-225.
• [4] Kim M C,Oh Y J,Hong J H.Characterization of boundaries and determination of effective grain size in Mn-Mo-Ni low alloy steel from the view of misorientation[J].Scripta Materialia,2000,43(3):205-211.
• [5] 万德成,蔡庆伍,余伟,等.超高强贝氏体钢的回火组织与力学性能[J].材料热处理学报,2013,34(5):143-149.WAN De-cheng,CAI Qing-wu,YU Wei,et al.Tempering microstructure and mechanical properties of an ultra high strength bainitic steel[J].Transactions of Materials and Heat Treatment,2013,34(5):143-149.
• [6] 高石,蔡庆伍,余伟,等.热处理工艺对纳米贝氏体钢显微组织的影响[J].材料热处理学报,2015,36(2):119-125.GAO Shi,CAI Qing-wu,YU Wei,et al.Effect of heat treatment process on microstructure of a nanostructured bainite steel[J].Transactions of Materials and Heat Treatment,2015,36(2):119-125.
• [7] 胡锋,张国宏,万响亮,等.微纳结构贝氏体钢中残留奥氏体的调控及其对稳定性的影响[J].材料热处理学报,2017,38(4):15-25.HU Feng,ZHANG Guo-hong,WAN Xiang-liang,et al.Regulation of retained austenite in the micro/nano-structured bainite steels and its influence on the stability[J].Transactions of Materials and Heat Treatment,2017,38(4):15-25.
• [8] 童明伟,袁泽喜,张开广,等.回火热处理对低屈强比高强钢组织与性能的影响[J].材料热处理学报,2015,36(5):123-128.TONG Ming-wei,YUAN Ze-xi,ZHANG Kai-guang,et al.Influence of tempering heat treatment on microstructure and mechnical properties of a high strength steel with low yield raito[J].Transactions of Materials and Heat Treatment,2015,36(5):123-128.
• [9] 陈柏林.低合金铁素体钢中富Cu析出相结构演化研究[D].上海:上海工程技术大学,2016.CHEN Bo-lin.The microstructure evolution of Cu-rich precipitate in low-alloy ferritic steel[D].Shanghai:Shanghai University of Engineering Science,2016.
• [10] 张杨.富铜纳米团簇强化高强低合金钢时效行为的研究[D].哈尔滨:哈尔滨工程大学,2015.ZHANG Yang.Study on aging behavior of Cu-enriched nano cluster strengthened HSLA steels[D].Harbin:Harbin Engineering University,2015.
• [11] Sharma S,Sangal S,Mondal K.Development of new high-strength carbide-free bainite steels[J].Metallurgical and Materials Transactions A,2011,42(13):3921-3933.
• [12] Caballero F G,Bhadeshia H,Mawella K J A,et al.Design of novel high strength bainitic steels:Part 2[J].Materials Science and Technology,2001,17(5):517-522.
• [13] Caballero F G,Bhadeshia H.Very strong bainite[J].Current Opinion in Solid State and Materials Science,2004,8(3):251-257.
• [14] Wang X L,Wu K M,Hu F,et al.Multi-step isothermal bainitic transformation in medium-carbon steel[J].Scripta Materialia,2014,74:56-59.
• [15] Remesh C Sharma.Principles of Heat Treatment of Steel[M].New Age International,1996:187-188.

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