Vibration assisted hot-wire Gas-Tungsten Arc Welding of duplex stainless steel 2205

Bishal Silwal, Michael Santangelo

Research output: Contribution to book or proceedingConference articlepeer-review

1 Scopus citations

Abstract

Duplex stainless steel are excellent corrosion resistance two-phase alloy as compared to stainless steel. The corrosion resistance of duplex stainless steel depends upon the balance phase of ferrite and austenite. During non-equilibrium processes such as welding, the fast cooling rate (as compared to the controlled environment where it is produced) suppresses the austenite to ferrite transformation. A low frequency vibration assisted hotwire Gas-Tungsten Arc Welding (GTAW) has been used to weld commercial duplex stainless steel alloy 2205. The results are compared with cold-wire GTAW weldments. The micro-hardness and microstructure of the weldments and heat-affected zones are characterized. A pitting corrosion test was performed on the weldments to measure the weight loss. A lower weight loss was achieved by using the low frequency vibration assisted hot-wire GTAW, however small pit was observed on the weld cap.

Original languageEnglish
Title of host publicationAdvanced Manufacturing
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791850527
DOIs
StatePublished - 2016
EventASME 2016 International Mechanical Engineering Congress and Exposition, IMECE 2016 - Phoenix, United States
Duration: Nov 11 2016Nov 17 2016

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume2

Conference

ConferenceASME 2016 International Mechanical Engineering Congress and Exposition, IMECE 2016
Country/TerritoryUnited States
CityPhoenix
Period11/11/1611/17/16

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