Effect of aging temperature on the fatigue properties of shot-peened single crystal superalloy at intermediate temperature
Source abstract
Abstract
Abstract After shot peening,single crystal superalloy specimens were subjected to thermal aging at different temperatures for 4h. The surface layer structures were observed, and the rotary bending fatigue performances with the notched structure at 650℃ were tested. The results showed that the deformed structure of the shot-peened single crystal superalloy surface recovered after aging at 870℃, exhibiting a little strengthening effect on the fatigue performance. After aging at 1000 - 1200℃, recrystallization structures appeared on the surface, and the depth and size of recrystallized grains increased with the aging temperature, decreasing the surface layer hardness. The recrystallized structure introduced by aging at 1200℃ decreased the notch fatigue life of single crystal superalloys by 68.2%.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Surface Treatment and Residual Stress · High Temperature Alloys and Creep · High Entropy Alloys Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
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