Effect of Heat Treatment on Microstructure and Mechanical Properties of Electron Beam Welding Joint of 30CrMnSiNi2A Steel
FENG Dianyuan1, LIU Shichao2, WANG Shanlin1,*, LI Huanhuan1, HONG Min1, TU Wenbin1
1 Jiangxi Provincial Key Laboratory of Aviation Component Forming and Connection, Nanchang Hangkong University, Nanchang 330063, China 2 Naval Equipment Military Representative Office in Nanchang Area, Nanchang 330200, China
Abstract: The effect of a new post-weld heat treatment system on the microstructure and properties of electron beam welded joints of 30CrMnSiNi2A steel was investigated by experiment. The results show that after adopting this new heat treatment system, the lath martensite and tempered sorbite in the weld, fusion line, heat affected zone and base metal transform into tempered martensite. The content of retained austenite in the weld, fusion line and heat affected zone increases greatly, and the content of retained austenite in the base metal decreases slightly. The grain size of the weld, fusion line, heat affected zone and base metal tends to be consistent, homogenizing the microstructure of these mentioned regions. In terms of mechanical properties, the hardness of the weld joint after welding is much higher than that of the base metal, and from weld joint center towards base metal, the hardness gradually decreases. After heat treatment, the hardness difference between the weld joint, fusion line, heat affected zone and the base metal is greatly eliminated, and the hardness is homogenized. The tensile strength of the base metal and welded joint is 795 MPa and 765 MPa, respectively, and the tensile strength of the joint after heat treatment is obviously improved to 1 456 MPa. This new heat treatment system adopted here promotes the uniformity of the microstructure of each region of the joint, effectively decreasing the performance difference between the regions.
冯殿远, 刘诗超, 王善林, 李欢欢, 洪敏, 涂文斌. 热处理对30CrMnSiNi2A钢电子束焊接头组织和性能的影响[J]. 材料导报, 2025, 39(14): 24040172-7.
FENG Dianyuan, LIU Shichao, WANG Shanlin, LI Huanhuan, HONG Min, TU Wenbin. Effect of Heat Treatment on Microstructure and Mechanical Properties of Electron Beam Welding Joint of 30CrMnSiNi2A Steel. Materials Reports, 2025, 39(14): 24040172-7.
1 Xie Y H. Study on the microstructure and properties of electron beam welded joints for ultra high strength steel. Master's Thesis,Tianjin University,China,2017 (in Chinese). 谢永辉. 超高强钢电子束焊接接头微观组织特征与力学性能研究. 硕士学位论文,天津大学,2017. 2 Jikang F,Wei Z,Bojin Q,et al. Rare Metal Materials and Engineering,2017,46(9),2417. 3 Sun W,Wang S,Wu M,et al. Materials Science and Engineering:A,2021,824,141811. 4 Yu B,Wang T,Lv Y,et al. Materials Science and Engineering:A,2021,817,141369. 5 Li J,Dong J M,Niu J, et al. Hot Working Technology, 2004(12), 19 (in Chinese). 李军, 董俊明, 牛靖, 等. 热加工工艺, 2004(12), 19. 6 Niu J, Dong J M, Dong W P, et al. Materials for Mechanical Engineering, 2006(7), 22 (in Chinese). 牛靖, 董俊明, 董卫鹏, 等. 机械工程材料, 2006, 30(7), 22. 7 Liu C S, Cui S G. Welding Technology, 2022, 51(1), 60 (in Chinese). 刘持森, 崔树国. 焊接技术, 2022, 51(1), 60. 8 Akbarzadeh I, Sattari I, Salehi M. Materials Science and Engineering:A, 2011, 528(4-5), 2118. 9 Wang T, Che J F, Pang H Y, et al. Wide and Heavy Plate, 2017, 23(5), 30 (in Chinese). 王通, 车金锋, 庞辉勇, 等. 宽厚板, 2017, 23(5), 30. 10 Luo Y F, Wang X Y, Qiang X H, et al. Journal of Tianjin University (Science and Technology), 2015, 48(S1), 134 (in Chinese). 罗永峰, 王熹宇, 强旭红, 等. 天津大学学报(自然科学与工程技术版), 2015, 48(S1), 134. 11 Yan M G, Liu D P, Shi C X, et al. China aeronautical materials handbook, Standards Press of China, China, 1988 (in Chinese). 颜鸣皋, 刘多朴, 师昌绪, 等. 中国航空材料手册, 中国标准出版社, 1988. 12 Sun W, Wang S, Hong M, et al. Vacuum, 2020, 182, 109765. 13 Wang Z J, Yin F, Li Y W, et al. Journal of Materials Processing Technology, 2022, 302, 117489. 14 Chen F R, Huo L X, Zhang Y F, et al. Journal of Materials Processing Technology, 2002, 129(1-3), 412. 15 Yi H, Du L, Wang G, et al. Journal of Iron and Steel Research International, 2006, 13(3), 36. 16 Wu L, Wang H, Zhu Y, et al. Materialia, 2021, 15, 100962. 17 Zhang S, Ma Y, Huang S, et al. Journal of Materials Science & Technology, 2019, 35(8), 1681. 18 Haefliger S, Kaufmann W. Construction and Building Materials, 2021, 282, 122598. 19 Han W, Fu L, Chen H Y. Rare Metal Materials and Engineering, 2018, 47(8), 2335 (in Chinese). 韩文, 傅莉, 陈海燕. 稀有金属材料与工程, 2018, 47(8), 2335. 20 Hanamura T, Yin F, Nagai K. ISIJ International, 2004, 44(3), 610. 21 Li Y, Bu H, Yang H, et al. Journal of Manufacturing Processes, 2020, 50, 366. 22 Chen T, Ji C, Zhu M. Journal of Alloys and Compounds, 2020, 823, 153650. 23 Li J, Xu Y, Lu B, et al. Journal of Materials Research and Technology, 2022, 18, 352. 24 Ramakrishna R V S M, Bhanu Sankara Rao K, Materials Today:Proceedings, 2021, 44, 2919. 25 Zhang J, Hu K, Zhao J, et al. Materials Today Communications, 2022, 30, 103054. 26 Wu Z H, Huang L F, Gu L W, et al. Forging & Stamping Technology, 2021, 46(8), 217 (in Chinese). 吴正环, 黄历锋, 谷历文, 等. 锻压技术, 2021, 46(8), 217. 27 Song W, Wang P, Wan D, et al. International Journal of Fatigue, 2021, 151, 106389. 28 Fernández R, Bruno G, Garcés G, et al. Materials Science and Engineering:A, 2020, 796, 140013.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2025, Vol. 39 
