Influence of minor tensile stress on the oxidation behavior of powder metallurgy superalloy
Source abstract
Abstract
Oxidation behavior of a novel powder metallurgy superalloy was investigated at 900 °C under minor tension of 0, 30, 50, and 70 MPa, respectively. Minor tensile stress was proved helpful in enhancing the oxidation resistance of superalloy. With increasing stress, oxide scale became thinner, more compact, more continuous and flatter. This was also accompanied by a reduced internal oxidation in alloy matrix. At the same time, more Ti was accumulated into the interior of Cr 2O 3 layer than in its surface, due to the inhibited outward diffusion of Ti by the more compact oxide scale at higher tensile stress.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · High Temperature Alloys and Creep · Intermetallics and Advanced Alloy Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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