Components HP and IP – Rotor – Diaphragm – Blades/Nozzles – Casing LP – Rotor – Diaphragm – Blades/nozzles.

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

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Presentation transcript:

Components HP and IP – Rotor – Diaphragm – Blades/Nozzles – Casing LP – Rotor – Diaphragm – 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, diaphragm, casing Weldability (Ti+Al )< 2.5 Yes - Inconel 617, Inconel 625, Inconel 718, Haynes 230, Inconel 740, Nimonic 263 No U720, Waspalloy, Nimonic 105, Nimonic 115, Haynes 282 Larson-Miller Parameter >25k Yes - Inconel 617, Inconel 740, Nimonic 263 No - Inconel 625, Inconel 718, Haynes 230 Machinability Yes - Inconel 617, Inconel 740, Nimonic 263

Phase 2 - Performance Ranking HP/IP Rotor, Diaphragm and Casing MaterialYield Strength (Mpa) Cost ($/lb) $/  y (x100) Oxidation Rank Inconel Inconel Nimonic

Phase 1 – Disqualifying Factors HP Components – Blades Weldability N/A Larson-Miller Parameter >25k 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, Waspaloy, Haynes 282 No – U720

Phase 2 - Performance Ranking HP Blades MaterialYield Strength (Mpa) Cost ($/lb) $/  y (x100) Oxidation Rank Inconel Inconel Nimonic Nimonic Nimonic Waspaloy Haynes

List of Potential Materials LP Components Ti A MA

Phase 1 – Disqualifying Factors LP Components Weldability (Ti+Al )< 2.5 Yes – 304, 316Ti, 253MA, A286 Larson-Miller Parameter N/A Machinability Yes – 304, 316Ti, 253MA, A286

Phase 2 - Performance Ranking LP Rotor, Diaphragm and Blades MaterialYield Strength (Mpa) Cost ($/lb) $/  y (x100) 316Ti Stainless Stainless MA A