Effects of GTAW process and post-welding heat treatment on the microstructure evolution, cracking behavior and hardness of Inconel 939 superalloy using Inconel 617 filler metal

This study investigates repair welding of service-aged Inconel 939 superalloy (100,000 operational hours) using gas tungsten arc welding (GTAW) with Inconel 617 filler metal. The research focuses on three key challenges: (1) irregularities in pre-existing MC carbides, (2) heat-affected zone (HAZ) li...

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Bibliographic Details
Main Authors: Amir Hossein Jafarzadeh, Mohammad Saeed Shahriari, Rouholah Ashiri
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785425019933
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