BAIK, YJ KIM, JK YOON, DY 2024-01-21T22:16:54Z 2024-01-21T22:16:54Z 2022-01-10 1993-08 0956-7151 https://pubs.kist.re.kr/handle/201004/146007 When a Co-20Cu (wt%) alloy prepared by liquid phase sintering at 1300-degrees-C is heat-treated at 1150-degrees-C, the intergranular liquid films and grain boundaries migrate, leaving behind a new solid solution with reduced Cu content. The phenomenon is identical to that observed previously in Mo-Ni. The calculated driving force for the migration is almost equal to the coherency strain energy in the solute diffusion zone ahead of the migrating boundaries. The migrating liquid films show faceting with curved planes and edges. Their shape closely resembles the growth shapes predicted on the basis of the coherency strain energy with anisotropic elastic constants. During the heat-treatment, liquid precipitates form within grains and at grain boundaries, and they also show faceting, which is consistent with orientation dependent coherency strain energy in the diffusion zone around the precipitates. English PERGAMON-ELSEVIER SCIENCE LTD GRAIN-BOUNDARY MIGRATION DIFFUSIONAL COHERENCY STRAIN MO-NI ALLOY DISCONTINUOUS PRECIPITATION DRIVING FORCE MATRIX SOLIDS STRESS ZN THE EFFECT OF ELASTIC-ANISOTROPY ON THE MIGRATION OF INTERGRANULAR LIQUID-FILMS AND THE PRECIPITATION OF A LIQUID-PHASE IN A CO-CU ALLOY Article 10.1016/0956-7151(93)90318-M 1 ACTA METALLURGICA ET MATERIALIA, v.41, no.8, pp.2385 - 2393 ACTA METALLURGICA ET MATERIALIA 41 8 2385 2393 scie scopus A1993LN82900012 2-s2.0-0027642101 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article GRAIN-BOUNDARY MIGRATION DIFFUSIONAL COHERENCY STRAIN MO-NI ALLOY DISCONTINUOUS PRECIPITATION DRIVING FORCE MATRIX SOLIDS STRESS ZN