Abstract
Creep crack growth rate of Hastelloy XR showed a dependence on thermally activated energy at very high temperatures. The Q* parameter was then applied to estimation of the creep cracking of the material. It was found that the Q* parameter well described the initial stage of crack growth as well as the steady-state cracking. The coefficients of the Q* parameter derived here for Hastelloy XR were compared with those of SUS 304 stainless steel and Cr-Mo-V steel and each of the coefficients was explained physically by the creep ductilities.
| Original language | English |
|---|---|
| Pages (from-to) | 515-519 |
| Number of pages | 5 |
| Journal | Transactions of the Japan Society of Mechanical Engineers Series A |
| Volume | 58 |
| Issue number | 548 |
| DOIs | |
| State | Published - 1992 |
| Externally published | Yes |
Keywords
- Cr-Mo-V Steel
- Creep Crack Growth Rate
- Creep Ductilities
- Hastelloy XR
- Q* Parameter
- SUS 304 Stainless Steel
- Very High Temperature