任芝兰,唐明华,毕红霞,吴远志,周勇,汪东南,何文鹏

• 1:湖南工学院智能制造与机械工程学院
• 2:湖南工学院材料科学与工程学院
• 3:衡阳华菱钢管有限公司技术中心

摘要(Abstract)：

采用正交试验方法来确定经济型低合金超高强度45CrNiSiMnMoVA钢的最佳热处理工艺，采用扫描电镜、透射电镜和万能材料试验机等研究了淬火温度、淬火保温时间、回火温度和回火保温时间等因素对试验钢显微组织和力学性能的影响。结果表明：回火温度的极差值最大，是对试验钢力学性能影响的最主要因素，淬火温度的影响次之；试验钢最佳的热处理工艺为：920℃×45 min淬火+350℃×120 min回火，此时，试验钢的组织为均匀细小的回火马氏体，抗拉强度为1745 MPa,屈服强度为1549 MPa,伸长率为7.3%,室温冲击吸收能量为19.1 J,实现了强度、塑性和韧性的良好匹配。

关键词(KeyWords)： 45CrNiSiMnMoVA钢;正交试验;工艺优化;组织与性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52171115)

作者(Author): 任芝兰,唐明华,毕红霞,吴远志,周勇,汪东南,何文鹏

DOI: 10.13289/j.issn.1009-6264.2022-0045

参考文献(References)：

• [1] Liu L,Yu Q,Wang Z,et al.Making ultra strong steel tough by grain-boundary delamination[J].Science,2020,368:1347-1352.
• [2] Nikkhah S,Mirzadeh H,Zamani M.Improved mechanical properties of mild steel via combination of deformation,intercritical annealing,and quench aging[J].Materials Science and Engineering A,2019,756:268-271.
• [3] Yin G Q,Kang X,Zhao G P.Fatigue properties of the ultra-high strength steel TM210A[J].Materials 2017,10:1057.
• [4] 张红斌，王黎云，刘永新.超高强度钢的进展[C]//新世纪新机遇新挑战——知识创新和高新技术产业发展(上册),中国吉林长春：中国科学技术出版社，2001:533-534.
• [5] Xiao B,Xu L Y,Cayron C,et al.Solute-dislocation interactions and creep-enhanced Cu precipitation in a novel ferriticmartensitic steel[J].Acta Materialia,2020,195:199-208.
• [6] Xu Y T,Li W,Wang M J,et al.Nano-sized MX carbonitrides contribute to the stability of mechanical properties of martensite ferrite steel in the later stages of long-term aging[J].Acta Materialia,2019,175:148-159.
• [7] Delagnes D,Pettinari-Sturmel F,Mathon M H,et al.Cementite-free martensitic steels:A new route to develop high strength/high toughness grades by modifying the conventional precipitation sequence during tempering[J].Acta Materialia,2012,60(16):5877-5888.
• [8] 赵振业.超高强度钢中二次硬化现象研究[J].航空材料学报，2002,22(4):46-54.ZHAO Zhen-ye.Studing status on the secondary hardening phenomenon in ultra-high strength steels[J].Journal of Aeronautical Materials,2002,22(4):46-54.
• [9] 张国英.新型无钴高强高韧钢微结构与强韧性机理研究[D].辽宁：东北大学，1996.ZHANG Guo-ying.Research on microstructure and toughening mechanism of new cobalt-free high-strength and high-toughness steel[D].Liaoning:Northeastern University,1996.
• [10] 苏杰，陈嘉砚，李荣.G99钢的合金设计及性能研究[C]//中国钢铁年会论文集，中国北京，冶金工业出版社，2001:821-824.
• [11] 胡春东，孟利，董瀚.超高强度钢的研究进展[J].材料热处理学报，2016,37(11):178-183.HU Chun-dong,MENG Li,DONG Han.Research and development of ultra-high strength steels[J].Transactions of Materials and Heat Treatment,2016,37(11):178-183.
• [12] 焦增宝，刘锦川.新型纳米强化超高强度钢的研究与进展[J].中国材料进展，2011,30(12):6-11.JIAO Zeng-bao,LIU Jin-chuan.Research and development of advanced nano-precipitate strengthened ultra-high strength steels[J].Materials China,2011,30(12):6-11.
• [13] 蒋虽合.Fe-Ni-Al基超强钢的纳米析出行为和强韧化机制研究[D].北京：北京科技大学，2018.JIANG Sui-he.Study on the nanoprecipitation behavior and the resultant strengthening and ductilizing mechanism in Fe-Ni-Al based ultrastrong steels[D].Beijing:University of Science and Technology Beijing,2018.
• [14] 毕红霞，唐明华，周勇，等.45CrNiSiMnMoVA超高强度钢的强韧化热处理工艺[J].材料热处理学报，2020,41(10):60-65.BI Hong-xia,TANG Ming-hua,ZHOU Yong,et al.Strengthening and toughening heat treatment process of ultra high strength 45CrNiSiMnMoVA steel[J].Transactions of Materials and Heat Treatment,2020,41(10):60-65.
• [15] Bi H X,Tang M H,Ren Z L,et al.Effects of tempering temperature on the microstructure and mechanical properties of low alloy ultra-high strength 45CrNiSiMnMoVA steel[J].Materials Science Forum,2021,1036:11-19.
• [16] 周涛.马氏体基高强钢强韧化机理研究与物理建模[D].北京：北京科技大学，2018.ZHOU Tao.Study of strengthening and toughening,and physically based modelling of martensite-based high-strength steels[D].Beijing:University of Science and Technology Beijing,2018.
• [17] 路妍.低合金超高强度钢组织与性能的研究[D].云南：昆明理工大学，2009.LU Yan.Study of the microstructure and properties of low alloy ultra-high strength steel[D].Yunnan:Kunming University of Science and Technology,2009.
• [18] 赵选民.试验设计方法[M].北京：科学出版社，2006.
• [19] 陈魁.试验设计与分析[M].北京：清华大学出版社，2005.
• [20] 徐立善，余伟，张烨铭，等.调质低碳贝氏体钢的组织和性能[J].北京科技大学学报，2012,34(2):125-131.XU Li-shan,YU Wei,ZHANG Ye-ming,et al.Microstructure and mechanical properties of low carbon bainite steel treated by quenching and tempering[J].Journal of University of Science and Technology Beijing,2012,34(2):125-131.
• [21] 董瀚，王毛球，翁宇庆.高性能钢的M3组织调控理论与技术[J].钢铁，2010,45(7):1-7.DONG Han,WANG Mao-qiu,WENG Yu-qing.Performance improvement of steels through M3 structure control[J].Iron and Steel,2010,45(7):1-7.
• [22] 张胜男，程兴旺.AerMet100超高强度钢的动态力学性能研究[J].材料工程，2015,43(12):24-30.ZHANG Sheng-nan,CHENG Xing-wang.Dynamic mechanical properties of AerMet100 ultra-high strength steel[J].Journal of Materials Engineering,2015,43(12):24-30.
• [23] 叶文冰.奥氏体化温度对 C54超高强度钢强韧性的影响[J].特钢技术，2016,22(3):23-28.YE Wen-bing.Effect of austenitizing temperature on strength and toughness of C54 ultra high strength steel[J].Special Steel Technology,2016,22(3):23-28.
• [24] 范新超，王春旭，厉勇，等.回火温度对超高强度35Cr3Ni2SiMnMoVA钢组织与性能的影响[J].金属热处理，2017,42(4):95-98.FAN Xin-chao,WANG Chun-xu,LI Yong,et al.Effect of tempering temperature on micro structure and mechanical properties of ultra high strength 35Cr3Ni2SiMnMoVA steel[J].Heat Treatment of Materials,2017,42(4):95-98.
• [25] 李杰，李春志，郭峰，等.二次硬化超高强度钢中析出强化相HRTEM研究[J].航空材料学报，2008,28(4):1-5.LI Jie,Li Chun-zhi,GUO Feng,et al.HRTEM study of strengthening precipitates of secondary hardening ultra-high strength steel[J].Journal of Aeronautical Materials,2008,28(4):1-5.
• [26] 赵乃勤.合金固态相变[M].长沙：中南大学出版社，2008.

文章评论(Comment)：