Weldability Evaluation of Alloy 718 Investment Castings with Different Si Contents and Thermal Stories and Hot Cracking Mechanism in Their Laser Beam Welds

Weldability Evaluation of Alloy 718 Investment Castings with Different Si Contents and Thermal Stories and Hot Cracking Mechanism in Their Laser Beam Welds

In this work, weldability and hot cracking susceptibility of five alloy 718 investment castings in laser beam welding (LBW) were investigated. Influence of chemical composition, with varying Si contents from 0.05 to 0.17 wt %, solidification rate, and pre-weld heat treatment were studied by carrying...

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Bibliographic Details
Main Authors: Pedro Álvarez, Alberto Cobos, Lexuri Vázquez, Noelia Ruiz, Pedro Pablo Rodríguez, Ana Magaña, Andrea Niklas, Fernando Santos
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Metals
Subjects:
investment casting
alloy 718
hot cracking mechanism
Varestraint test
laser beam welding
Online Access:https://www.mdpi.com/2075-4701/11/3/402

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