Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10634036 | Scripta Materialia | 2013 | 4 Pages |
Abstract
Cyclic deformation was studied in Cu samples with a gradient nanograined (GNG) surface layer. Compared with the coarse-grained sample, the Cu samples with a GNG surface layer exhibit a greatly enhanced fatigue limit under stress-controlled cyclic deformation. The cyclic deformation induced an abnormal grain coarsening that initiated from the subsurface layer and grew along 45° to the stress axis toward the top surface layer, where the fatigue cracks were formed.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
L. Yang, N.R. Tao, K. Lu, L. Lu,