Heat-Affected-Zone Liquation Cracking in Welded Cast Haynes® 282®
Journal article, 2020

Varestraint weldability testing and Gleeble thermomechanical simulation of the newly developed cast form of Haynes® 282® were performed to understand how heat-affected-zone (HAZ) liquation cracking is influenced by different preweld heat treatments. In contrast to common understanding, cracking susceptibility did not improve with a higher degree of homogenization achieved at a higher heat-treatment temperature. Heat treatments with a 4 h dwell time at 1120 °C and 1160 °C exhibited low cracking sensitivity, whereas by increasing the temperature to 1190 °C, the cracking was exacerbated. Nanosecond ion mass spectrometry analysis was done to characterize B segregation at grain boundaries that the 1190 °C heat treatment indicated to be liberated from the dissolution of C–B rich precipitates.

Gleeble

boron

nanoSIMS

Varestraint

cracking

Haynes® 282®

Author

Sukhdeep Singh

Chalmers, Industrial and Materials Science, Materials and manufacture

Joel Håkan Andersson

Chalmers, Industrial and Materials Science, Materials and manufacture

Metals

2075-4701 (eISSN)

Vol. 10 1

Subject Categories

Energy Engineering

Other Materials Engineering

Metallurgy and Metallic Materials

Infrastructure

Chemical Imaging Infrastructure

DOI

10.3390/met10010029

More information

Latest update

2/15/2021