| Title | Development of a 12% Cr Steel Rotor Forging for Geothermal Power Plants |
|---|---|
| Authors | M. Kamada, M. Saito, A. Fujita, K. Ura & Y. Okamura |
| Year | 2001 |
| Conference | New Zealand Geothermal Workshop |
| Keywords | |
| Abstract | In order to increase the stress corrosion cracking (SCC) resistance of geothermal turbine rotor materials, a new 12%Cr steel has been developed. A fundamental study of the effect of alloying elements on SCC resistance was carried out, and an alloy composition of Fe-0.04%C-12%Cr-5%Ni- 0.05%N was selected. Verification tests conducted on a full size turbine rotor forging showed excellent results. |