Components HP and IP, High T LP, High T Rotor Diaphram Blades/Nozzles

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Presentation transcript:

Components HP and IP, High T LP, High T Rotor Diaphram Blades/Nozzles Casing/Steam Chest LP, High T Rotor Diaphram Blades/nozzles

List of Potential Materials HP, High T, Static and Dynamic Inconel 617 Inconel 625 Inconel 718 Inconel 740 Nimonic 105 Nimonic 115 Nimonic 263 Haynes 230 Haynes 282 U700 U710 U720 Waspaloy ODS-FeCrAl

Phase 1 – Disqualifying Factors HP Components – Rotor and Casing (Ti+Al )< 2.5 Weldability Yes - Inconel 617, Inconel 625, Inconel 718, Haynes 230, Inconel 740, Nimonic 263 No - U700, U710, U720, Waspalloy, Nimonic 105, Nimonic 115, Haynes 282 ODS-FeCrAl Parameter > 25 Larson-Miller Yes - Inconel 617, Inconel 740, Nimonic 263 No - Inconel 625, Inconel 718, Haynes 230 Machinability Inconel 617, Inconel 740, Nimonic 263

Phase 2 - Performance Ranking Rotor and Diaphragm Material Yield Strength Oxidation x 10 Cost x - 5 Total Inconel 617 283 8 10.70 309.5 Inconel 740 608 10 654.5 Nimonic 263 630 6 11.39 633.05

Phase 2 - Performance Ranking Casing Material Yield Strength Oxidation x 5 Cost x - 10 Total Inconel 617 283 8 10.70 216 Inconel 740 608 10 551 Nimonic 263 630 6 11.39 546.1

Phase 1 – Disqualifying Factors HP Components – Blades Weldability N/A Parameter > 25 Larson-Miller Yes - Inconel 617, Inconel 740, Nimonic 263, Nimonic 105, Nimonic 115, U720, Waspaloy, Haynes 282 No - Inconel 625, Inconel 718, Haynes 230 Machinability Yes - Inconel 617, Inconel 740, Nimonic 263,Nimonic 105, Nimonic 115, U720, Waspaloy, Haynes 282 No – U720

Phase 2 - Performance Ranking HP Blades Material Yield Strength Oxidation x 10 Cost x - 10 Total Inconel 617 283 8 10.70 256 Inconel 740 608 10 601 Nimonic 263 630 6 11.39 576.1 Nimonic 105 690 x 11.36 576.4 Nimonic 115 Waspaloy 650 5 10.30 597 Haynes 282 614 10.35 570

List of Potential Materials LP Components 304 316Ti A286 253MA

Phase 1 – Disqualifying Factors LP Components (Ti+Al )< 2.5 Weldability Yes – 304, 316Ti, 253MA, A286 No - Parameter > ?? Larson-Miller Yes - Machinability