增材电子束制造多金属样品缺陷形成规律

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019 Pub Date : 2019-11-19 DOI:10.1063/1.5132004

A. Gusarova, E. Khoroshko

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引用次数: 0

摘要

研究了电子束增材法制备的不同体系的多金属材料在工艺参数偏离最优值时缺陷形成的规律。结果表明，金属和合金样品的形成取决于所选择的材料，缺陷的形核结构不同，对力学性能的影响也不同。在固态溶解度高且能形成金属间化合物的金属对样品中，由状态图确定，缺陷以裂纹和分层的形式形成。由于送丝不均匀、丝不过热或衬底过热，所有系统的样品都可能形成系统组件的不均匀分布。

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Regularities of defect formation at additive electron-beam manufacturing of polymetallic samples

The regularities of defect formation in polymetallic materials of various systems obtained by the method of electron-beam additive technology with the process parameters variation from the optimal values are investigated. It is revealed that depending on the material selected for the metal and alloy samples formation there is nucleation of defects which differ in structure and influence on mechanical properties. In the samples from the pair of metals with high solubility in the solid state and the ability to form intermetallic compounds, determined by the state diagram, the defects are formed in the form of cracks and stratifications. Samples of all systems can form heterogeneous distribution of the system components due to irregularity of wire filament feeding, filament underheating or substrate overheating.

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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019

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