Effect of Welding Methods on Microstructure of Joint for 16MnR and 2205DSS

Abstract:

Two kinds of welding methods, including SMAW and GTAW, were employed to connect 16MnR steel and 2205 steel. OM and TEM was used to observe the microstructure. EDX line scan was used to analyze elements in special areas of the joint. The results show that the degree of carbon migration in the side of 16MnR of the seam welded by GTAW is larger than that by SMAW. Particle and chain-island are two main form of Fe₃C in micro-area of carbon migration. The grain size of seam material in GTAW section is larger than that of SMAW and the content of austenitic of seam material in GTAW section is more than that of SMAW. The tongues in the side of 16MnR appear in both two seams welded by SMAW and GTAW and they are parts from base metal.

• Periodical: Advanced Materials Research (Volumes 791-793)
• Pages: 366-369
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.791-793.366
• Online since: September 2013
• Authors: Li Yang, Ning Zhang, Jing Guo Ge, Nan Ji, Meng Li
• Keywords: Dissimilar Steel, Heat Input, Microstructure, Welding Method

References

[1] Han Zhicheng, Wang Shaogang, Xu Fenglin at al. Study on corrosion resistance properties of 2205 duplex stainless steel welded joints. Corrosion & Protection in Petrochemical Industry, 2008, 25(3): 1-3.

[2] Yang Li, Wang Cang. Testing and analysis on microstructure and property of joint for S31803 duplex stainless steel welded by SMAW. Hot Working Technology, 2010, 39(17): 158-160.

[3] Wang Cang, Zhou Jizhi. The influence of welding process on mechanical property and metallurgical structure of weld joint for austenite-ferrite duplex stainless steel. Journal of Xuzhou Institute of Technology(Natural Sciences Edition), 2011, 26(2): 76-79.

[4] Ureña A, Otero E, Utrilla M V, M´unez C J. Weldability of a 2205 duplex stainless steel using plasma arc welding. Journal of Materials Processing Technology, 2007, 182(1): 624-631.

DOI: 10.1016/j.jmatprotec.2006.08.030

[5] Sathiya P, Aravindan S, Soundararajan R, Noorul Haq A. Effect of shielding gases on mechanical and metallurgical properties of duplex stainless-steel welds. Journal of Materials Science and Technology. 2009, 44(2): 114-121.

DOI: 10.1007/s10853-008-3098-8

[6] Omyma Hassan Ibrahim, Ibrahim Soliman Ibrahim, Tarek Ahmed Fouad Khalifa. Effect of Aging on the Toughness of Austenitic and Duplex Stainless Steel Weldments. Journal of Materials Science and Technology, 2010, 26(9): 810-816.

DOI: 10.1016/s1005-0302(10)60129-6