Varestraint Weldability Testing of ATI 718Plus (R)-Influence of Eta Phase
Paper i proceeding, 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
Författare
Sukhdeep Singh
Chalmers, Industri- och materialvetenskap, Material och tillverkning
William Fransson
Högskolan Väst
Joel Andersson
Högskolan Väst
Anssi Brederholm
Aalto-Yliopisto
Hannu Hanninen
Aalto-Yliopisto
Minerals, Metals and Materials Series
23671181 (ISSN) 23671696 (eISSN)
Vol. 2018-June 929-937978-3-319-89480-5 (ISBN)
9th International Symposium on Superalloy 718 and Derivatives - Energy, Aerospace, and Industrial Applications
Champion, PA, USA,
Champion, PA, USA,
Ämneskategorier
Bearbetnings-, yt- och fogningsteknik
Annan materialteknik
Metallurgi och metalliska material
DOI
10.1007/978-3-319-89480-5_62