발간논문

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Vol.33, No.10, 1337 ~ 1344, 1995
Title
A Study on the Growth Behavior of M2C Precipitates in the High Co - Ni Secondary Hardening Steel - Part 2 . Phase Equilibria and Thermodynamic Calculations -
유충화Choong Hwa Yoo, 서정룡Jeong Ryong Soh, 이혁모Hyuck Mo Lee, 김충언Choong Un Kim
Abstract
Secondary hardening is accomplished by the precipitation of fine-scale M₂C alloy carbides in high CoNi steels containing the strong carbide-forming elements Cr and Mo. Thermodynamic stability and coarsening resistance of these carbides depend on the alloy content of these elements. Thermodynamic calculations are performed for the determination of phase diagram, composition of alloying elements M, mole fraction and lattice parameters of M₂C, and volume percent of austenite in AerMet 100 system. And these results are compared with experimental ones and the coarsening theory of rod-type particles.
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