Abstract
Most of the conventional strengthening methods for metals and alloys such as work hardening, precipitation hardening, cause a decrease in ductility and are not very effective for cyclic loading. In this study, a new strengthening method, which is effective for high cycle fatigue, has been developed. The intersections of dislocations in a stainless steel are freezed by very fine martensite particles, which are supposed to suppress dislocation motion at low stress amplitudes. Fatigue life in a high cycle regime increased > 60 times, and no decrease in ductility was observed in tensile tests, as compared to a work-hardened stainless steel.
| Original language | English |
|---|---|
| Pages (from-to) | S69-S73 |
| Journal | International Journal of Fatigue |
| Volume | 19 |
| Issue number | SUPPL.1 |
| Publication status | Published - 1997 |
| Externally published | Yes |
Keywords
- Austenitic stainless steel
- Cyclic plastic deformation
- Fatigue life extension
- Martensitic transformation
ASJC Scopus subject areas
- Modelling and Simulation
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering