Study of structural phase transformations in cobalt heat resistant alloys

D. I. Davydov, N. V. Kazantseva,I. V. Ezhov, V. S. Gaviko,N. A. Popov

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS. MATERIALS WITH MULTILEVEL HIERARCHICAL STRUCTURE AND INTELLIGENT MANUFACTURING TECHNOLOGYAIP Conference Proceedings（2020）

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摘要

Two Co-10 at% Al-5 at% Mo-2 at% Nb and Co-10 at% Al-7.5 at% Mo-3 at% Nb alloys of the Co-Al-Mo-Nb system were studied. Together with gamma'->gamma disordered transition, the formation of new intermetallic phase, which was suggested as Co-2(Nb, Mo, Al)-type Laves phase, were found. This new phase decomposed at temperature range of 650-750 degrees C. The precipitates of new phase were detected along the grain boundaries and inside the grains of the studied alloys.

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关键词

Diffusion in Alloys,Intermetallic Alloys

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