Results 211 to 220 of about 16,800 (255)
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1979
Melting of superalloys is the initial, and perhaps most important, step in the production of materials used in critical high-temperature applications. Increasing demand for high-quality superalloys with specific characteristics has resulted in various combinations of primary, melting, refining, and secondary remelting operations.
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Melting of superalloys is the initial, and perhaps most important, step in the production of materials used in critical high-temperature applications. Increasing demand for high-quality superalloys with specific characteristics has resulted in various combinations of primary, melting, refining, and secondary remelting operations.
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JOM, 2012
This topic concerns advances in superalloys, and is sponsored by the TMS High Temperature Alloys Committee. Near-term developments on nickel-base superalloys are presented, as well as longer-term considerations for new superalloys. The High Temperature Alloys Committee sponsored a very successful International Symposium on Superalloy 718 and ...
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This topic concerns advances in superalloys, and is sponsored by the TMS High Temperature Alloys Committee. Near-term developments on nickel-base superalloys are presented, as well as longer-term considerations for new superalloys. The High Temperature Alloys Committee sponsored a very successful International Symposium on Superalloy 718 and ...
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Materials & Design, 2000
Abstract The control of the hot-working processes from the initial ingot breakdown procedures to the final forging of precision components is critical for the generation of consistent mechanical properties. As a consequence, there have been improvements in both process control and monitoring as well as significant efforts in the process modelling of ...
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Abstract The control of the hot-working processes from the initial ingot breakdown procedures to the final forging of precision components is critical for the generation of consistent mechanical properties. As a consequence, there have been improvements in both process control and monitoring as well as significant efforts in the process modelling of ...
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The performance of Superalloys
Advanced Materials, 1990Hot‐end components in today's aero turbofan engines are made from materials known as superalloys, typically based on NiCr, NiCrFe or CoCr systems. In the fifty years or so that have elapsed since the first superalloys were introduced, the temperature capability of the materials has increased by approximately 500° and the power output of aero gas ...
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Thermodynamics of the superalloys
Metallurgical Transactions A, 1982Using the parameters of Kaufman and Nesor, we have calculated the activities of Al, Ti, Cr, Fe, Co, Ni, Mo, and W in 17 superalloys. These components behave in three distinctly different ways: Al and Ti have very.small activity coefficients; Fe, Co, and Ni have activity coefficients close to unity; and Cr, Mo, and W have activity coefficients of ...
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