Abstract
To determine the weldability of SUS445 ferritic stainless steel, two welding approaches, tungsten inert gas and fiber laser welding processes, were used and compared. After the welding processes, the microstructure, mechanical properties, and corrosion resistance of the welds were investigated. In the weld fusion zones of these two welding approaches, different morphologies of the grains were obtained. No obvious precipitation formed in these zones. In the heat affected zone of the tungsten inert gas welds, more volume fraction and larger grain sizes of the Laves phase and larger matrix grains were observed, which significantly affected its corrosion resistance and mechanical properties. However, in the heat affected zone of the fiber laser welds, only small amounts Laves phases and a relatively narrow matrix grain growth area were observed, which offers better corrosion resistance and mechanical properties.
References
[1] A.N. Hansson, M. Montgomery, M.A.J. Somers: Oxid. Met. 71 (2009) 201. DOI:10.1007/s11085-009-9138-1 Search in Google Scholar
[2] J. Shen, L. Zhou, T. Li: Oxid. Met. 48 (1997) 347–356. DOI:10.1007/BF01670507 Search in Google Scholar
[3] Z. Yang, G. Xia, P. Singh, J.W. Stevenson: Solid State Ionics 176 (2005) 1495. DOI:10.1016/j.ssi.2005.03.019 Search in Google Scholar
[4] J.R. Davis, ASM Specialty Handbook: Stainless Steels, American for Specialty Material International, U.S.A (1994). Search in Google Scholar
[5] T. Juuti, L. Rovatti, A. Mäkelä, L.P. Karjalainen, D. Porter: J. Alloys Compd. 616 (2014) 250. DOI:10.1016/j.jallcom.2014.06.201 Search in Google Scholar
[6] K. Fukuda, S. Ishikawa, T. Kasamo: Mo-Saving Stainless Steel JFE 445M for Hot Water Tanks, JFE Technical (2008). Search in Google Scholar
[7] Y.H. Shi, S. Cui, T. Zhu, S. Gu, X. Shen: J. Mater. Process. Technol. 256 (2018) 254. 2018.02.019. DOI:10.1016/j.jmatprotec Search in Google Scholar
[8] C.C. Silva, J.P. Farias, H.C. Miranda, R.F. Guimarães, J.W.A. Menezes, M.A.M. Neto: Mater. Charact. 59 (2008) 528. DOI:10.1016/j.matchar.2007.03.011 Search in Google Scholar
[9] S.H. Yan, Y. Shi, J. Liu, C. Ni: Opt. Laser Technol. 113 (2019) 428. DOI:10.1016/j.optlastec.2019.01.023 Search in Google Scholar
[10] JIS, Metallic materials-Tensile testing-Method of test at room temperature, Japanese Standards Association Z2241, JAPAN (2011). Search in Google Scholar
[11] ASTM, Standard Test Methods for Pitting and Crevice Corrosion Resistance of Stainless Steels and Related Alloys by Use of Ferric Chloride Solution, American Society for Testing Materials International G48–11, USA (2015). Search in Google Scholar
[12] J.C. Lippold, D.J. Kotecki, Welding Metallurgy and Weldability of Stainless Steels, John Wiley & Sons Inc., New York, USA (2005). Search in Google Scholar
[13] F.R. Xiao, Y.B. Cao, G.Y. Qiao, X.B. Zhang, B. Liao: J. Iron Steel Res. 19 (2012) 52. DOI:10.1016/S1006-706X(13)60020-5 Search in Google Scholar
[14] H.M. Soltani, M. Tayebi: J. Alloys Compd. 767 (2018) 112. DOI:10.1016/j.jallcom.2018.06.302 Search in Google Scholar
[15] S.V. Kuryntsev, A.E. Morushkin, A. Kh. Gilmutdinov: Opt. Laser Eng. 90 (2017) 101. DOI:10.1016/j.optlaseng.2016.10.008 Search in Google Scholar
[16] E.L. Brown, M.E. Burnett, P.T. Purtscher, G. Krauss: Metall. Trans. A. 14 (1983) 791. DOI:10.1007/BF02644282 Search in Google Scholar
[17] H.H. Lu, Y. Luo, H.K. Guo, W.Q. Li, J.C. Li, W. Liang: Mater, Sci. Eng. A 735 (2018) 31–39. DOI:10.1007/s11837-019-03473-0 Search in Google Scholar
[18] D. Kou: Welding Metallurgy, John Wiley &Sons: Inc., 2nd ed., New Jersey, U.S.A (2013). Search in Google Scholar
[19] K.E. Easterling: Introduction to the Physical Metallurgy of Welding, Oxford Butterworth-Heinemann ed. (1992). Search in Google Scholar
[20] G. Li, X. Lu, X. Zhu, J. Huang, L. Liu, Y. Wu: Opt. Laser Technol. 101 (2018) 479. DOI:10.1016/j.optlastec.2017.12.002 Search in Google Scholar
© 2021 Walter de Gruyter GmbH, Berlin/Boston, Germany