NDLI: Influence of Welding Techniques on Heat Affected Zone Softening of Dissimilar Metal Maraging Steel and High Strength Low Alloy Steel Gas Tungsten Arc Weldments

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Transactions of the Indian Institute of Metals : Volume 69

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Influence of Welding Techniques on Heat Affected Zone Softening of Dissimilar Metal Maraging Steel and High Strength Low Alloy Steel Gas Tungsten Arc Weldments

Content Provider	Springer Nature Link
Author	Joshi, Jaiteerth R. Potta, Mastanaiah Adepu, Kumar Gankidi, Madhusudhan Reddy Katta, Ramesh Kumar
Copyright Year	2016
Abstract	The present investigation reports on a study that has been taken up to understand and control the extent of softening in heat affected zone of dissimilar gas tungsten arc (GTA) welds of high strength steels: AISI 4130 steel and 18 % Ni maraging steel which are in hardened condition i.e., maraging steel in solution treated and aged condition and AISI 4130 steel in hardened and tempered condition before welding. The influence of welding technique on the width of soft zone and in-turn on the hardness has been investigated. All the dissimilar joints have been investigated for microstructures, microhardness and tensile properties. It is observed that continuous current GTA welding process results in a wider soft zone, leading to poor mechanical properties, which can be attributed to softer microstructural constituents.
Starting Page	69
Ending Page	81
Page Count	13
File Format	PDF
ISSN	09722815
Journal	Transactions of the Indian Institute of Metals
Volume Number	70
Issue Number	1
e-ISSN	09751645
Language	English
Publisher	Springer India
Publisher Date	2016-04-18
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	HAZ softening Maraging steel AISI 4130 steel Gas tungsten arc welds Metallic Materials Materials Science Tribology, Corrosion and Coatings
Content Type	Text
Resource Type	Article
Subject	Metals and Alloys

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