Heat-Affected-Zone Liquation Cracking in Welded Cast Haynes® 282®
Artikel i vetenskaplig tidskrift, 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.

cracking

Varestraint

Haynes® 282®

boron

Gleeble

nanoSIMS

Författare

Sukhdeep Singh

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Joel Håkan Andersson

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Metals

2075-4701 (eISSN)

Vol. 10 1

Ämneskategorier

Energiteknik

Annan materialteknik

Metallurgi och metalliska material

Infrastruktur

Infrastruktur för kemisk avbildning

DOI

10.3390/met10010029

Mer information

Senast uppdaterat

2020-04-14