Varestraint Weldability Testing of ATI 718Plus®—Influence of Eta Phase
Paper in proceedings, 2018

This study investigates the effect of eta phase on hot cracking susceptibility of ATI 718Plus®. Two heat treatment conditions of 950°C/1 h and 950°C/15 h having different amounts of eta phase were tested by longitudinal Varestraint testing method. The heat treatment at 950°C/15 h exhibited the highest amount of cracking. This was related to the higher amount of eta phase precipitation during the long dwell heat treatment which aided to extensive liquation during welding.

ATI 718Plus®

eta phase

Hot cracking

Varestraint testing

Author

Sukhdeep Singh

Chalmers, Industrial and Materials Science, Materials and manufacture

Joel Håkan Andersson

Chalmers, Industrial and Materials Science, Materials and manufacture

Superalloy 718 & Derivatives
Pittsburgh, ,

Subject Categories

Manufacturing, Surface and Joining Technology

Other Materials Engineering

Metallurgy and Metallic Materials

DOI

10.1007/978-3-319-89480-5

More information

Created

5/21/2018