Affiliation:
1. Liquid Propulsion Systems Centre
2. Vikram Sarabhai Space Centre
3. Indian Institute of Technology (Madras)
Abstract
The detrimental laves formation in fusion zone during welding of Inconel 718 is controlled with compound current pulsing technique along with helium shielding gas. Also solid solution filler wire is used to minimize the niobium segregation. Welds were produced in 2mm thick sheets by GTA welding process and subjected to the characterization techniques. The results show, refined fusion zone microstructure, reduced amount of laves phase, minimum niobium segregation and softer fusion zone in the as welded condition.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference12 articles.
1. A. Lingenfelter, Proc. Conf. on Superalloy718-Metallurgy and Applications, 673: 1989, TMS.
2. GD.J. Ram, K.P. Rao, G.M. Reddy, Sci. and Tech. of Weld and Join 2004, (9) 5.
3. WJ. Mills, Weld. J 1984 237-243.
4. S.G.S. Raman, Mat. Sci. Engg. A 448(2007), 120-127.
5. G.M. Reddy, CVS. Murthy, Int. J. Adv. Manuf. Technol (2009) 43: 671-680.
Cited by
62 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献