D. A. Gurianov, S. V. Fortuna, A. M. Cheremnov, S. Yu. Nikonov
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引用次数: 0
Abstract
The paper examines the structuel formation and its impact on the mechanical properties of cobalt-based superalloy samples, namely Stellite 6 and Stellite 12, produced via wire-feed electron beam additive manufacturing (EBAM). It is demonstrated that this method enables the product fabrication from cobalt superalloys without macroscopic defects. It is shown that the primary phase and structural components of the EBAM-processed samples are dendrite arms comprising a cobalt-based solid solution, two types of carbides (M7C3 and MC), and eutectics distributed in the interdendritic space. The mechanical properties of the Stellite 6 alloy sample are superior to those of the Stellite 12 sample due to the martensitic γ-Co → ε-Co transformation in the former.
期刊介绍：
Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.
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