Efect of Heat Input on the Microstructural, Mechanical, and Corrosion Properties of Dissimilar Weldment of Conventional Austenitic Stainless Steel and Low‑Nickel Stainless Steel

Tandon, Vipin and Thombre, Manish A and Patil, Awanikumar and Taiwade, Ravindra V and Vashishtha, Himanshu (2020) Efect of Heat Input on the Microstructural, Mechanical, and Corrosion Properties of Dissimilar Weldment of Conventional Austenitic Stainless Steel and Low‑Nickel Stainless Steel. Metallography, Microstructure, and Analysis, 9. pp. 668-677. ISSN 2192-9262

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Abstract

In the present investigation, an attempt has been made to investigate the replacement compatibility of conventional austenitic stainless steel (316L) with low-Ni austenitic stainless steel (201) by employing their dissimilar welding using gas tungsten arc welding technique with varying heat input. The efects of heat input on the microstructural, mechanical, and corrosion properties were studied. The result depicts the balanced austenite/ferrite content in the fusion zone for both the heat inputs. The low heat input process, which results in a faster cooling rate, demonstrates higher tensile strength and microhardness. Similarly, the pitting corrosion resistance of the fusion zone demonstrates better properties on the low heat input process attributed to the lesser dendritic length and lesser interdendritic arm spacing

Item Type: Article
Uncontrolled Keywords: Low-nickel austenitic stainless steels · Dissimilar welding · Mechanical properties · Electrochemical behavior
Subjects: Architecture > MSAP Manipal
Depositing User: MIT Library
Date Deposited: 08 Dec 2020 09:58
Last Modified: 08 Dec 2020 09:58
URI: http://eprints.manipal.edu/id/eprint/156068

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