High-temperature oxidation behaviour of a Co-based superalloy fabricated through laser powder bed fusion
Source abstract
Abstract
This study investigated the oxidation behaviour of a Co-based superalloy fabricated through laser powder bed fusion at 900 ℃. In terms of oxidation products, the results revealed the generation of basic oxides , such as CoO, Al 2 O 3 and TiO 2 , and Co-containing spinels, such as CoAl 2 O 4 and Co 2 TiO 4 . Heat treatment improved oxidation resistance by reducing the parabolic oxidation rate constant from 0.17234 to 0.10032 mg 2 cm −4 h −1 . γ′ precipitates, twin boundaries and less spallation in the heat-treated sample contributed to this improvement, leading to a superior oxidation resistance in this study than in previously reported Co-Al-W-based alloys.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: High-Temperature Coating Behaviors · High Temperature Alloys and Creep · High Entropy Alloys Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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