Microstructure and mechanical properties of Haynes 282 superalloy produced by laser powder bed fusion
Journal article, 2021
processability and properties of Haynes 282 by laser-powder bed fusion (LPBF), which is a relatively new Ni-base superalloy with properties superior to those of many legacy wrought superalloys. The results demonstrated that crack-free Haynes 282 can be manufactured by means of LPBF with full density. The mechanical properties at ambient temperature exceeded the properties of the reference material in the as-built and heat-treated conditions, albeit with significant anisotropy. Mechanical properties at 800 ◦C indicated that the yield strength of heattreated Haynes 282 by LPBF was comparable to that of the reference material, however, ductility was significantly reduced. Promising stress rupture performance also indicates that Haynes 282 is an ideal candidate for adoption in additive manufacturing, especially if heat treatments can be re-designed for the additively manufactured as-built microstructure.
Nickel-base superalloy High temperature material Haynes 282 Additive manufacturing Laser powder bed fusion Microstructure Mechanical performance
Author
Abdul Shaafi Shaikh
Chalmers, Industrial and Materials Science, Materials and manufacture
Fiona Schulz
Chalmers, Industrial and Materials Science, Materials and manufacture
Kevin Minet-Lallemand
EOS Finland Oy
Eduard Hryha
Chalmers, Industrial and Materials Science, Materials and manufacture
Materials Today Communications
23524928 (eISSN)
Vol. 26 102038Subject Categories
Physical Chemistry
Areas of Advance
Materials Science
DOI
10.1016/j.mtcomm.2021.102038