Abstract
The effects of microstructural parameters on thermal fatigue crack initiation and short crack growth in austenitic stainless steels are studied. AISI 304, 316 and 321 type stainless steels were thermally fatigued in the temperature range of 20-300 degreesC. Such thermal fluctuations are typical of fatigue cracking, e.g., in nuclear power plant pipings. Development of thermal fatigue damage was monitored by replica assisted optical and SE-microscopy. Crack growth rate was estimated from striation spacing measurements. Actual thermal strains were measured directly from sample surface. Residual stresses caused by thermal cycling were measured by X-ray diffraction.
| Original language | English |
|---|---|
| Title of host publication | FATIGUE '99: PROCEEDINGS OF THE SEVENTH INTERNATIONAL FATIGUE CONGRESS, VOLS 1-4 |
| Editors | XR Wu, ZG Wang |
| Publisher | Higher Education Press |
| Pages | 2183-2188 |
| Number of pages | 6 |
| ISBN (Print) | 7-04-007582-2 |
| Publication status | Published - 1999 |
| MoE publication type | A4 Conference publication |
| Event | International Fatigue Congress - Beijing, China Duration: 8 Jun 1999 → 12 Jun 1999 Conference number: 7 |
Conference
| Conference | International Fatigue Congress |
|---|---|
| Abbreviated title | FATIGUE |
| Country/Territory | China |
| City | Beijing |
| Period | 08/06/1999 → 12/06/1999 |
Keywords
- austenitic stainless steels
- thermal fatigue