Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
781672 | International Journal of Fatigue | 2008 | 11 Pages |
Abstract
Numerical simulations have been performed to analyze the individual contributions of the nanocrystalline surface layer, residual compressive stresses, and a work-hardened surface region to the improved fatigue limit of a nickel alloy subjected to the surface nanocrystallization and hardening (SNH) treatment. The contributions of the nanocrystalline surface layer and work-hardened surface region have been separated from that of residual compressive stresses. The study suggests that the nanocrystalline surface layer and work-hardened surface region play a significant role in enhancing the fatigue limit of the SNH-processed nickel alloy. In contrast, less contribution is provided by residual compressive stresses.
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Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
K. Dai, L. Shaw,