A Novel gamma y'-Strengthened Nickel-Based Superalloy for Laser Powder Bed Fusion
Journal article, 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

Author

Jinghao Xu

Linköping University

Hans Gruber

Chalmers, Industrial and Materials Science, Materials and manufacture

Ru Lin Peng

Linköping University

JJ Moverare

Linköping University

Materials

19961944 (eISSN)

Vol. 13 21 1-12 4930

Subject Categories

Manufacturing, Surface and Joining Technology

Other Materials Engineering

Metallurgy and Metallic Materials

DOI

10.3390/ma13214930

PubMed

33147831

More information

Latest update

4/6/2022 5