Varestraint Weldability Testing of ATI 718Plus (R)-Influence of Eta Phase
Paper in proceedings, 2018

This study investigates the effect of eta phase on hot cracking susceptibility of ATI 718Plus (R). Two heat treatment conditions of 950 degrees C/1 h and 950 degrees C/15 h having different amounts of eta phase were tested by longitudinal Varestraint testing method. The heat treatment at 950 degrees 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 (R)

Hot cracking

Varestraint testing

Eta phase

Author

Sukhdeep Singh

Chalmers, Industrial and Materials Science, Materials and manufacture

William Fransson

University West

Joel Andersson

University West

Anssi Brederholm

Aalto University

Hannu Hanninen

Aalto University

PROCEEDINGS OF THE 9TH INTERNATIONAL SYMPOSIUM ON SUPERALLOY 718 & DERIVATIVES: ENERGY, AEROSPACE, AND INDUSTRIAL APPLICATIONS

2367-1181 (ISSN)

929-937

9th International Symposium on Superalloy 718 and Derivatives - Energy, Aerospace, and Industrial Applications
Champion, PA, USA,

Subject Categories

Manufacturing, Surface and Joining Technology

Other Materials Engineering

Metallurgy and Metallic Materials

DOI

10.1007/978-3-319-89480-5_62

More information

Latest update

7/8/2019 3