METALS AND METAL MATRIX COMPOSITES |
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Microstructure and Properties of TIG Welded Joint of FeCrAl Alloy Plates |
WANG Henglin1,2, CAO Rui1,2*, CHENG Hongbei1,2, QIN Wei3, ZHOU Shuangshuang3, YAN Yingjie1,2
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1 The State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China 2 School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China 3 Advanced Technology & Materials Co., Ltd., China Iron & Steel Research Technology Co., Ltd., Beijing 100081, China |
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Abstract TIG welding was used to weld FeCrAl alloy sheet with two sides and multiple layers. The filling material was FeCrAl alloy wire. The weld zone is composed of coarse ferrite microstructure. The heat affected zone is composed of fine equiaxed crystal microstructure. The effect of wel-ding parameters on microstructure and mechanical properties of welded joints was investigated. The maximum tensile strength of the welded joint after heat treatment reaches 400 MPa, about 52.2% of the base metal’ strength. The maximum tensile strength of the welded joint after heat treatment reaches 482 MPa, about 62.3% of the base metal’ strength, which can meet the mechanical properties of the welded joint of FeCrAl alloy sheet as load-bearing structure.
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Published:
Online: 2023-12-19
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Fund:Key Project of the Science and Technology of Gansu Province (22ZD6GA008) and the National Natural Science Foundation of China (52175325, 51961024, 52071170). |
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1 Gussev M N, Field K G, Yamamoto Y, et al. Materials & Design, 2017, 129(5), 227. 2 Zhu Q, Lei Y C, Wang Y, et al. Fusion Engineering and Design, 2014, 89(12), 2964. 3 Han Wentuo, Liu Pingping, Yi Xiaoou, et al. Journal of Materials Science & Technology, 2018, 34(1), 209. 4 Huang J H, Chen S H, Zhao X K. Principles of welding metallurgy, China Machine Press, China, 2015(in Chinese). 黄继华, 陈树海, 赵兴科. 焊接冶金原理, 机械工业出版社, 2015. 5 Lei Y C, Gong C H, Luo Y. Chinese Journal of Materials Research, 2014, 28(2), 93(in Chinese). 雷玉成, 龚晨诚, 罗 雅. 材料研究学报, 2014, 28(2), 93. 6 Lei Y C, Li M G, Cheng L. Chinese Journal of Material Research, 2012, 26(4), 383(in Chinese). 雷玉成, 李猛刚, 承龙. 材料研究学报, 2012, 26(4), 383. 7 Lei Y C, Gong C H, Luo Y. In:Proceedings of the 18th National Wel-ding Conference of Welding Society of China Mechanical Engineering Society. Nanchang, 2013, pp. 116(in Chinese). 雷玉成, 龚晨诚, 罗雅. 中国机械工程学会焊接学会第十八次全国焊接学术会议论文集. 南昌, 2013, pp. 116. 8 Liang S Y, Lei Y C, Zhao K. Materials Science & Technology, 2013, 21(5), 20(in Chinese). 梁申勇, 雷玉成, 赵 凯. 材料科学与工艺, 2013, 21(5), 20. 9 Massey C P, Zhang D, Briggs S A, et al. Journal of Nuclear Materials, 2020, 533, 152105. 10 Chen J H. Welding manual-Volume 2, China Machine Press, China, 2008(in Chinese). 陈剑虹. 焊接手册-第2卷, 机械工业出版社, 2008. |
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