Abstract
The effect of crystallographic texture and grain size on the cyclic hardening of FCC polycrystals was studied using copper as a model material. Samples with textures approximately random and two grain sizes were tested under cyclic loading. The cyclic response for high values of the plastic strain amplitude of the random-textured material was softer than that of polycrystals with strong <111>-<100> texture reported in [1], and almost the same at low plastic strains, when similar testing conditions were used. The cyclic behavior of specimens with different grain sizes and similar texture was almost the same as well. This result shows that texture had a much more important effect on the cyclic behavior of polycrystalline copper than the grain size. The effect of ramp loading as a pretreatment was also studied. The results show that large grained samples had a softer cyclic response after the ramp than small grained ones, but the effect was still smaller than that of texture.
| Original language | English (US) |
|---|---|
| Title of host publication | Materials Research Society Symposium - Proceedings |
| Publisher | Materials Research Society |
| Pages | 181-186 |
| Number of pages | 6 |
| Volume | 362 |
| State | Published - 1995 |
| Externally published | Yes |
| Event | Proceedings of the 1994 MRS Fall Meeting - Boston, MA, USA Duration: Nov 28 1994 → Nov 30 1994 |
Other
| Other | Proceedings of the 1994 MRS Fall Meeting |
|---|---|
| City | Boston, MA, USA |
| Period | 11/28/94 → 11/30/94 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials