Abstract
The incompatability between the composition of a heat-resistant steel and fabrication by welding which could lead to premature failure due to microstructural instability was discussed. The comparative stress-rupture lives at 873°C of specimens removed from the base metal and weld heat-affected zone were analyzed. The heat-affected zone was distinguished by the presence of a massive network of lamellar grain boundary precipitates. Analysis suggests that Si could have the effect of shifting the average electron concentration to a lower level stabilizing Laves phases in transition metal systems with Fe, Ni and Co which do not ordinarily form binary Laves phases.
| Original language | English |
|---|---|
| Pages (from-to) | 2085-2087 |
| Number of pages | 3 |
| Journal | Journal of Materials Science |
| Volume | 40 |
| Issue number | 8 |
| DOIs | |
| State | Published - Apr 2005 |
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering