Study on Microstructural and Mechanical Properties of Dissimilar Joint of Laser Beam Welded Inconel 625 and SS 316
Keywords:
Dissimilar Metals, Laser Beam Welding, Microstructure Properties, Mechanical PropertiesAbstract
This paper investigates the microstructure and properties of deep penetrated laser welded dissimilar joints of Inconel 625 nickel based alloys and 316 Stainless Steel. Evaluation of weld microstructures through optical microscopy, Brinell Hardness test, Tensile test at room temperature and stress rupture properties were done. The Experimental results showed that the microstructure of the weld zone near the fusion line in Inconel 625 were columnar dendrites, whereas that near the fusion line in SS 316 were mainly cellular. The tensile strength tests indicated that the dissimilar butt joints ruptured in the fusion zone.
References
1. Shankar, V., Rao, K.B.S. and Mannan, S.L., 2001. Microstructure and mechanical properties of Inconel 625 superalloy. Journal of Nuclear Materials, 288(2- 3), pp.222-232.
2. Lai, J.K.L., 1983. A review of precipitation behaviour in AISI type 316 stainless steel. Materials Science and Engineering, 61(2), pp.101-109.
3. RamGDJ,ReddyAV, Rao KP,Reddy GM(2005) Microstructure and mechanical properties of Inconel 718 electron beam welds. Mater Sci Technol 21:1132– 1138.
4. Çam G, Koçak M (1998) Progress in joining of advanced materials part II: joining of metal matrix composites and joining of other advanced materials. Sci Technol Weld Join 3:159–175.
5. Gobbi S, Zhang L, Norris J, Richter KH, Loreau JH (1996) High powder CO2 and Nd-YAG laser welding of wrought Inconel 718. J Mater Process Technol 56:333–345.
2. Lai, J.K.L., 1983. A review of precipitation behaviour in AISI type 316 stainless steel. Materials Science and Engineering, 61(2), pp.101-109.
3. RamGDJ,ReddyAV, Rao KP,Reddy GM(2005) Microstructure and mechanical properties of Inconel 718 electron beam welds. Mater Sci Technol 21:1132– 1138.
4. Çam G, Koçak M (1998) Progress in joining of advanced materials part II: joining of metal matrix composites and joining of other advanced materials. Sci Technol Weld Join 3:159–175.
5. Gobbi S, Zhang L, Norris J, Richter KH, Loreau JH (1996) High powder CO2 and Nd-YAG laser welding of wrought Inconel 718. J Mater Process Technol 56:333–345.
Published
2018-06-28
Issue
Section
Research Article
