Abstract
Near-threshold fatigue crack growth in high-strength low-alloy (HSLA) steel, Fe, and Fe-Si alloys was found to depend on test temperature from room temperature down to 123 K. Near-threshold crack growth rates were lowered and threshold stress intensity factors increased with decreasing temperature. A 'prominent' closure was observed for all test temperatures and materials and was further confirmed by the examination of fracture surfaces. The magnitude of closure increased with decreasing temperature, suggesting a dependence on yield strength and fracture morphology.
| Original language | English (US) |
|---|---|
| Title of host publication | ASTM Special Technical Publication |
| Publisher | ASTM |
| Pages | 63-83 |
| Number of pages | 21 |
| ISBN (Print) | 0803104111 |
| State | Published - Jan 1 1985 |