IN-713C characteristic properties optimized through different heat treatments |
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Authors: | A Ges H Palacio R Versaci |
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Affiliation: | (1) Institute de Física de Materiales Tandil (IFIMAT), CICPBA, Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, 7000 Tandil, Argentina;(2) Departamento de Materiales, Comisión Nacional de Energíe Atómica Gerencia de Desarrollo, Avda. del Libertador 8250, 1429 Buenos Aires, Argentina |
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Abstract: | The strength of a nickel-based superalloy hardened through precipitation is related to the volume fraction, particle size and distribution of the precipitated phase, . These parameters may vary as a result of heat treatment, or high-temperatures service. The information obtained, describing the influence of time and temperature on the precipitated phase, , is of special importance owing to its technological application at high temperatures. Dissolution or precipitation kinetics are such that the volume-fraction balance of the phase is quickly established at an ageing temperature given by successive changes due only to the particle growth. The results of the present study describe heat-treatment effects on size and distribution of the phase, and precipitated carbides ageing of a nickel-based superalloy (IN-713C). These on ageing studies at a certain temperature show that the kinetic growth of particles by controlled diffusion follows that r t
1/3 law. |
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Keywords: | |
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