Review Article
Physical Metallurgy of Modern Creep-Resistant Steel for Steam Power Plants: Microstructure and Phase Transformations
Table 4
Heat treatment conditions, matrix phase, and precipitates for steels of varying chromium content [
5].
| Steel | Water quenching treatment | Tempering/air cooled treatment | Phases present | Precipitates after tempering |
| 2Cr-2W | 930°C/hr | 730°C/hr | Bainite | , , | 5Cr-2W | 930°C/hr | 750°C/hr | Bainite | | 9Cr-2W | 950°C/hr | 750°C/hr | Martensite | | 12Cr-2W | 1000°C/hr | 750°C/hr | Martensite + -ferrite (0.16) | | 15Cr-2W | 1050°C/hr | 750°C/hr | Martensite + -ferrite (0.16) | |
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