Distribution & Access For Publication Downloads News About Us Contact Us
Paper Titles
Analysis of Trace Additives in Copper Alloys for Space Applications: A Comparison between Graphite Furnace Atomic Absorption Spectrometry and Inductively Coupled Plasma Atomic Emission Spectrometry
p.588
Pulsed Thermography and Ultrasonic Non-Destructive Evaluation of Corrugated Metallic Thermal Protection System (MTPS) Panel
p.594
Effect of Welding Processes (GTAW & EBW) and Solutionizing Temperature on Microfissuring Tendency in Inconel 718 Welds
p.603
Electron Beam Welding Studies on Nb-Hf-Ti Refractory Alloy
p.608
Laves Phase Control in Inconel 718 Weldments
p.614
Friction Welding of Titanium to 304 Stainless Steel with Electroplated Nickel Interlayer
p.620
Effect of Simulated Brazing Cycle on the Microstructure and Mechanical Properties of Cu-Cr-Zr-Ti Alloy
p.626
Laser Beam Welding of Aluminium: Process Optimisation to Achieve Hermetic Sealing for Electrochemical Energy System Containers
p.632
Microstructural Characterisation of AA2219 Weldments
p.638

Laves Phase Control in Inconel 718 Weldments

Article Preview

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.

You might also be interested in these eBooks
Advances in Metallic Materials and Manufacturing Processes for Strategic Sectors View Preview

Info:

Periodical:

Materials Science Forum (Volume 710)

Pages:

614-619

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.710.614

Citation:

Cite this paper

Online since:

January 2012

Authors:

S.G.K. Manikandan, D. Sivakumar, Kamaraj Muthuswamy, K. Prasad Rao

Keywords:

Compound Current Pulse, Gas Tungsten Arc Welding (GTAW), Helium, Inconel 718, Laves Phase

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] A.Lingenfelter, Proc. Conf. on "Superalloy718-Metallurgy and Applications", 673:1989, TMS

Google Scholar

[2] GD.J. Ram, K.P. Rao, G.M. Reddy, Sci. and Tech. of Weld and Join 2004, (9) 5

Google Scholar

[3] WJ.Mills, Weld. J 1984 237-243

Google Scholar

[4] S.G.S. Raman, Mat. Sci. Engg. A 448(2007), 120-127

Google Scholar

[5] G.M. Reddy, CVS.Murthy, Int. J. Adv. Manuf. Technol (2009) 43:671-680

Google Scholar

[6] CH.Radhakrishna, K.P. Rao, J. Mater. Sci. Lett (1995) 14:1810-1812

Google Scholar

[7] GD.J. Ram, K.P. Rao, G.M. Reddy, J. Matl. Sci. 40(2005), 1497-1500

Google Scholar

[8] GD.J. Ram, G.M. Reddy, K.P. Rao. J. Matl. Process. Tech. 167(2005), 73-82

Google Scholar

[9] Chang heui Jang, Ph.D thesis, MIT, (1995)

Google Scholar

[10] S.G.S. Raman, Metall. & Mater. Trans. A, 39, 2115-2127, (2008)

Google Scholar

[11] W.T. Loomis, Metall. Trans. Vol3-1972, 989

Google Scholar

[12] V.Biss, Metall. Trans. Vol-4, 1973, p.1953

Google Scholar

Scientific.Net is a registered brand of Trans Tech Publications Ltd
© 2024 by Trans Tech Publications Ltd. All Rights Reserved