Abstract
Using a round bar circular notched specimen for Cr-Mo-V steel and the proposed equation predicting crack length on the basis of electric potential drop method, the creep crack growth tests were previously conducted to investigate the effect of multi-axial stress on creep crack growth rate(CCGR). In this paper, more detailed experiments and analyses on the creep crack growth were conducted and the Q* parameter which characterizes CCGR for this circular notched specimen was derived. Furthermore, using the Q* parameter, the prediction law of creep crack growth life was also derived.
| Original language | English |
|---|---|
| Pages (from-to) | 95-100 |
| Number of pages | 6 |
| Journal | Materials at High Temperatures |
| Volume | 21 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2004 |
| Externally published | Yes |
Keywords
- Circular notch
- Creep crack growth life
- Creep crack growth rate
- Electric potential drop method
- Multi-axial stress
- Q* parameter
- Round bar specimen
ASJC Scopus subject areas
- Ceramics and Composites
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry