A Novel gamma y'-Strengthened Nickel-Based Superalloy for Laser Powder Bed Fusion
Artikel i vetenskaplig tidskrift, 2020

An experimental printable gamma '-strengthened nickel-based superalloy, MAD542, is proposed. By process optimization, a crack-free component with less than 0.06% defect was achieved by laser powder bed fusion (LPBF). After post-processing by solution heat treatment, a recrystallized structure was revealed, which was also associated with the formation of annealing twins. After the aging treatment, 60-65% gamma ' precipitates were obtained with a cuboidal morphology. The success of printing and post-processing the new MAD542 superalloy may give new insights into alloy design approaches for additive manufacturing.

alloy development

phase

laser powder bed fusion

nickel-based superalloy

Författare

Jinghao Xu

Linköpings universitet

Hans Gruber

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Ru Lin Peng

Linköpings universitet

JJ Moverare

Linköpings universitet

Materials

1996-1944 (ISSN)

Vol. 13 21 4930

Ämneskategorier

Bearbetnings-, yt- och fogningsteknik

Annan materialteknik

Metallurgi och metalliska material

DOI

10.3390/ma13214930

PubMed

33147831

Mer information

Senast uppdaterat

2020-12-07