Abstract: The yield strength and tensile strength were obtained through the micro-area tensile test in different regions of 2219 aluminum alloy TIG wel-ding joint and the tensile test at different temperatures of the base material during the thermal cycle. The softening model based on temperature, temperature history and strain strengthening effect was established. The softening model was applied to the finite element simulation of the residual stress of TIG welding joint, and the stress of simulated values and measured values by X-ray diffraction were compared. It was found that, compared with the conventional model, the residual stress distribution based on the softening model decreased variously and the effect was more obvious in the area of both ends and near the weld and the transverse distribution. The distribution of welding residual stress with the softe-ning model is closer to the measured value, which improves the accuracy of welding residual stress calculation and verifies the effectiveness of the softening model.
吴奇, 李晓延, 孙鲁阳, 王小鹏. 2219铝合金焊接接头软化模型的建立与应用[J]. 材料导报, 2020, 34(10): 10138-10143.
WU Qi, LI Xiaoyan, SUN Luyang, WANG Xiaopeng. Establishment and Application of Softening Model of 2219 Aluminum Alloy Welding Joint. Materials Reports, 2020, 34(10): 10138-10143.
1 Lumley R N, Polmear I J, Morton A J, et al. Materials & Design, 2014, 56(4), 862. 2 Wang G Q, Zhao Y H, Hao Y F. Journal of Materials Science & Techno-logy, 2018, 34(1),73. 3 Lin Y T, Wang D B, Wang Y. Journal of Tianjin University (Natural Science and Engineering Technology),2015, 48(5),468(in Chinese). 林一桐, 王东坡, 王颖.天津大学学报(自然科学与工程技术版), 2015, 48(5), 468. 4 He H, Yi Y, Huang S, et al. Journal of Materials Science & Technology, 2019, 35(1),55. 5 Liu Z H, Shang Y R, Ning L Q, et al.Missiles and Space Vehicles, 2009(4),(in Chinese). 刘志华, 尚育如, 宁立芹,等. 导弹与航天运载技术, 2009(4),30. 6 Jia C L, Chen F R.Materials Review B: Research Papers, 2018, 32(8),2816(in Chinese). 贾翠玲, 陈芙蓉.材料导报:研究篇, 2018, 32(8),2816. 7 Zhang W, Jiang W, Zhao X, et al. International Journal of Fatigue, 2018, 109,182. 8 Zheng J, Ince A, Tang L. Procedia Engineering, 2018, 213,36. 9 Zhu X K, Chao Y J. Computers & Structures, 2002, 80(11),967. 10 Sonne M R, Tutum C C, Hattel J, et al. Journal of Materials Processing Technology, 2013, 213(3),477. 11 Zhang Z L, Shi Q Y, Liu Y, et al. Transactions of the China Welding Institution, 2009, 30(2),45(in Chinese). 张增磊, 史清宇, 刘园, 等. 焊接学报, 2009, 30(2),45. 12 Li Y J, Li Q, Wu A P, et al. Transactions of Nonferrous Metals Society of China, 2015, 25(9),3072. 13 Hu M J, Li K J, Cai Z P, et al. Journal of Manufacturing Processes, 2018, 34,614. 14 Deng D A, Zhang Y B, Li S, et al.Acta Metallurgica Sinica , 2016, 52(4),394(in Chinese). 邓德安, 张彦斌, 李索, 等. 金属学报, 2016, 52(4),394. 15 Zhang Z L, Silvanus J, Li H K, et al. Science & Technology of Welding & Joining, 2013, 13(5),422. 16 Meng Q G, Fang H Y, Yang J G, et al. Theoretical & Applied Fracture Mechanics, 2005, 44(2),178. 17 Narender K, Rao A S M, Rao K G K, et al. Thermochimica Acta, 2013, 569(Complete),90. 18 Goldak J, Chakravarti A, Bibby M. Metallurgical and Materials Transactions B, 1984, 15(2),299. 19 Fang H Y. Welding structure, China Machine Press, China, 2008(in Chinese). 方洪渊. 焊接结构学,机械工业出版社, 2008.
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2020, Vol. 34 
