Cannon Muskegon commenced cast superalloy modification work in the late 1970’s with CM 247 LC® alloy (also known as Rene’ 108), a DS derivative of MAR M 247 alloy.
Because of the excellent castability (freedom from DS grain boundary cracking and equiaxe hot cracking), strength and ductility – including fatigue properties, CM 247 LC® is used since 1984, for flight and industrial engine blades and vane segments (DS & equiaxed), integral axial turbine wheels and nozzles and high performance turbocharger wheels (Formula 1 racing) by at least 14 OEMS worldwide.
- CMSX®-2/3 – 1st Generation SX Alloys
- CMSX-6® – Low Density 1st Generation SX Alloy
- CMSX-4® – 2nd Generation 3% Re Alloy
- Greatest Worldwide Applications (175 Million Total Engine Hours) Flight, Industrial, and Marine Turbines
- CMSX®-10K/10N – 3rd Generation 6-7% Re Alloys
- Uncooled 2nd Stage Blades
- CM 186 LC®/CMSX-486® – SX Vane Segment Alloys, Including IGT Large Vanes
- Used As Cast
- CM 681 LC® – Sophisticated Integral Wheel Alloy (3% Re)
- CM 939 Weldable® – Structurally Weld Repairable IGT Vane and Flight Engine Integral Nozzle and High Temperature Structural Part Alloy (10 Years Engine Operating Experience).
- CMSX®-7 – Strength, Oxidation Resistance and Castability Improvement Over CMSX-3® – Zero Re
- CMSX®-8/B/C – 1.5% Re Alloy With Properties Close to CMSX-4® – Excellent SX Castability
- CMSX-4® Plus – Improved 3rd Generation SX Alloy
- Superior high temperature mechanical properties
- Improved castability – yield, chemistry retention, as-cast microporosity & Solution Heat Treatment window – full solutioning with no recrystallization or incipient melting
- Excellent Phase stability & bare alloy oxidation properties
- Lower Re content, cost & density compared to current 3rd generation SX alloys.
SX casting yield, casting quality and turbine engine airfoil component performance results – including component lifing/durability, for these CM manufactured proprietary alloys, is acknowledged by the gas turbine industry as world-class.