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J. Ye¹, P. Li¹, S. Yang², X. Deng¹ and B. Gao¹

¹CSR Qingdao Sifang Co., Ltd. Qingdao, PR China
²Shanghai University of Engineering Science, PR China

doi:10.4203/ccp.104.120

J. Ye, P. Li, S. Yang, X. Deng, B. Gao, "Microstructures and Properties of Pulsed Mig Joint of A6n01 Al Alloy", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 120, 2014. doi:10.4203/ccp.104.120

Keywords: high-speed vehicle, hollow sectional material, Al alloy, pulsed MIG welding, microstructure, mechanical property.

Summary

The A6N01 Al alloy was welded using pulsed MIG welding (P-MIG) in a test and the microstructure and mechanical properties of the joints were investigated. The results of the experimentation show that the microstructure of the welding metal is as-cast microstructure, and the microstructure of the base metal is isometric crystal. There is a narrow fusion zone near the edge of the weld seam, which consists of fine columnar grains. The micro-hardness at the centre of the welded metal is lowest in the joint. The tensile strength of the welded joint is 198MPa and the percentage elongation after fracture is 7%. The zone of fracture is located in the welding metal.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 104 PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 120 Microstructures and Properties of Pulsed Mig Joint of A6n01 Al Alloy J. Ye¹, P. Li¹, S. Yang², X. Deng¹ and B. Gao¹ ¹CSR Qingdao Sifang Co., Ltd. Qingdao, PR China ²Shanghai University of Engineering Science, PR China doi:10.4203/ccp.104.120 purchase the full-text of this paper Full Bibliographic Reference for this paper J. Ye, P. Li, S. Yang, X. Deng, B. Gao, "Microstructures and Properties of Pulsed Mig Joint of A6n01 Al Alloy", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 120, 2014. doi:10.4203/ccp.104.120 Keywords: high-speed vehicle, hollow sectional material, Al alloy, pulsed MIG welding, microstructure, mechanical property. Summary The A6N01 Al alloy was welded using pulsed MIG welding (P-MIG) in a test and the microstructure and mechanical properties of the joints were investigated. The results of the experimentation show that the microstructure of the welding metal is as-cast microstructure, and the microstructure of the base metal is isometric crystal. There is a narrow fusion zone near the edge of the weld seam, which consists of fine columnar grains. The micro-hardness at the centre of the welded metal is lowest in the joint. The tensile strength of the welded joint is 198MPa and the percentage elongation after fracture is 7%. The zone of fracture is located in the welding metal. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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