White Papers
Documenting our product development history.Developments in Superalloy Castability and New Application for Advanced Superalloy-2009-MST8548
June 6, 2023 — The primary goals in the continuing development of the aircraft gas turbine are increased operating temperatures and improved efficiencies.
Author(s): K. Harris, G.L. Erickson, R.E. Schwer
Development of the Rhenium Containing Superalloy CMSX-4 & CM 186 LC 7 Spings-1992
June 13, 2023 — A team approach involving several turbine engine companies utilizing the concepts of simultaneous engineering, has been used to successfully develop CMSX-4 alloy for turbine blade applications.
Author(s): K. Harris, G.L. Erickson, S.L. Sikkenga, W.D.Brentnall, J.M. Aurrecoechea, K.G. Kubarych
Development and Turbine Engine Performance of Three Advanced Re-Containing Superalloys for SX and DS Blades and Vanes
June 14, 2023 — Turbine inlet temperatures over the next few years will approach 1650 C (3000 F) at maximum power for the latest large commercial turbofan engines, resulting in high fuel efficiency and thrust levels approaching 445 kN.
Author(s): R.W. Broomfield, D.A. Ford, H.K. Bhangu, M.C. Thomas, D.J. Frasier, P.S. Burkholder, K. Harris. G.L. Erickson, J.B. Wahl
Development and Applications of CM 718 Premium SQ for Critical Cast Structural Components
June 6, 2023 — Alloy 718, developed by INCO in the late 1950's, is a weldable nickel base superalloy intended for use in gas turbine forged rotating disc and fabricated structural components.
Author(s): C.L. Erickson, K. Harris, R.E. Schwer
Coating Characterization and Evaluation of Directionally Solidified CM 186 LC and Single Crystal CMSX-4
June 5, 2023 — Hot corrosion and long-time dynamic oxidation tests were conducted on serval alloy (equiaxed MM-0011 and IN738, SX CMSX-4, and DS CM186LC) and coating (simple aluminide, Pt-aluminide, and NiCoCrAlY).
Author(s): M. Barber, M. Thomas
CMSX Single Crystal, CM DS & Integral Wheel Alloys
June 7, 2023 — The development concepts leading to the derivation of the CMSX series of single crystal superalloys from the MAR M 247 composition are review in relation.
Author(s): K. Harris, G.L. Erickson, R.E. Schwer
Advances in SX Superalloys
June 5, 2023 — In the highly competitive world of aero and industrial gas turbine design, manufacture and engine service, the demands imposed on engine performance are continually escalating.
Author(s): J.B. Whal, K. Harris
Advancements in Turbine Blading Materials of IGT Applications
June 7, 2023 — In an effort toward achieving global competitiveness, most producers of advanced gas turbine power generating machines have begun to employ higher technology materials in critical engine components, thereby allowing increased turbine operating temperatures, which, in turn, lead to increased turbine efficiency.
Author(s): G. Erickson
Advanced Ni-Base Superalloys for Small Gas Turbines
April 1, 2022 &mdash Ni-base superalloy cast materials provide an outstanding balance of high temperature strength, fatigue resistance, oxidation resistance and coating performance and can be produced to very tight tolerances in extremely complex configurations, such as axial and centrifugal integral cast turbine wheels.
Author(s): J.B. Wahl, K. Harris