| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1579723 | Materials Science and Engineering: A | 2010 | 6 Pages |
Abstract
The region of fatigue crack initiation in a cylindrical transmission gear was investigated by mapping the distribution of residual stress and hardness at different distances from the surface. Using these values of residual stress and hardness, the fatigue limits for single tooth bending were obtained at different distances from the surface. Fractographic observation proved that fatigue and fatigue cracks began at the subsurface, about 0.25–0.45 mm below the surface. A rational design of the surface strengthening process can predict and control the region of fatigue crack initiation.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Lu Xi,