Research on fretting regime transition of DD6 single- crystal superalloy via femtosecond laser-induced asperity and hardened layer
Applied Surface Science（2023）
Abstract
•Femtosecond laser modification was performed on DD6 superalloy.•Ablation layer and deformed layer form after femtosecond laser modification.•Both asperity and hardened layer change the fretting regime from MSR to GSR.
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Key words
Femtosecond laser modification,DD6 single-crystal superalloy,Gradient microstructure,Fretting regime transition
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