Sorry, you need to enable JavaScript to visit this website.

Process Optimization in Laser Welding of IN792 DS Superalloy

TitleProcess Optimization in Laser Welding of IN792 DS Superalloy
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2024
AuthorsBarbieri, Giuseppe, Cognini Francesco, De Crescenzo C., Fava A., Moncada M., Montanari R., Richetta M., and Varone A.
JournalMetals
Volume14
Type of ArticleArticle
ISSN20754701
Abstract

Ni-base superalloys are employed to produce parts of aeronautic engines, space vehicles and power plants. During the production process or lifetime of components, cracks may occur which affect their performance. Reliable repairs can be carried out through high-energy density welding techniques. This work investigated laser welding of the directionally solidified IN792 DS superalloy. The characteristics of the original material and their evolution in the base metal, heat-affected zone and melt zone after laser welding in different conditions and post-welding heat treatment were investigated through micro-hardness tests, light and scanning electron microscopy observations. The study allowed to optimize the process parameters and post-welding heat treatment, obtaining joints without macro-defects, such as cracks and pores, and with properties and microstructures of the melt zone like those of base metal. © 2024 by the authors.

Notes

cited By

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85183355125&doi=10.3390%2fmet14010124&partnerID=40&md5=34381f0296f1df86916569b5611a8848
DOI10.3390/met14010124
Citation KeyBarbieri2024