Precipitation Kinetics and Morphology of Grain Boundary Carbides in Ni-Base Superalloy Haynes 282
Journal article, 2020
Precipitation of grain boundary carbides in a mill-annealed Haynes 282 in the temperature range 650 degrees C to 1120 degrees C was investigated. The kinetics of M(23)C(6)was significantly faster than that of M6C. With increasing aging temperature, the morphology changes from continuous film to an interconnected brick wall structure and finally to discrete particles. No morphological changes were observed with aging time. Serrated grain boundaries formed during aging around 750 degrees C. The solvus temperature for both M(23)C(6)and M6C was approximately 1100 degrees C.
Author
Ceena Joseph
Chalmers, Industrial and Materials Science, Engineering Materials
Christer Persson
Chalmers, Industrial and Materials Science, Engineering Materials
Magnus Hörnqvist Colliander
Chalmers, Physics, Microstructure Physics
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
1073-5623 (ISSN)
Vol. 51 12 6136-6141Thermo-mechanical fatigue of NI-based supperalloys (TMF II)
VINNOVA (2013-01154), 2013-01-02 -- 2017-06-30.
Subject Categories
Applied Mechanics
Metallurgy and Metallic Materials
Infrastructure
Chalmers Materials Analysis Laboratory
Areas of Advance
Materials Science
DOI
10.1007/s11661-020-06019-1