Abstract
This paper is devoted to the selective laser smelting (SLS) method description for the article made of powder of a Cu81-Ni19 copper-nickel alloy and the study of the structure and characteristics of the three-dimensional article made using additive technology. To make a 3D model the copper-nickel alloy powder was produced in our laboratory. The chemical composition, microstructure, density, surface roughness and microhardness of an article made of powders of a Cu81-Ni19 copper-nickel alloy are considered. A comparative analysis of the structure, physical and mechanical properties of a sample obtained by the SLS method and the annealed rolled plate was carried out. The article microstructure is characterized by the absence of a typical signs of a crystalline structure and contains elements of a quasi-amorphous state. At the same time, the obtained material differs from the standard monolith billet with a lower surface roughness and a higher hardness values while maintaining almost the same density indices.
Highlights
At present, additive technologies are one of the promising methods for producing finished products with the required properties [1]. They are based on the effect of concentrated energy flows on powder layers deposited in accordance with the spatial-geometric configurations of the formed article
Summary Using the selective laser smelted method a three-dimensional model made of the Cu81-Ni19 coppernickel alloy is obtained
Structural studies have shown that the finished 3D model is not characterized by typical signs of a crystalline structure
Summary
Series: Materials Science and Engineering 966 (2020) 012119 doi:10.1088/1757-899X/966/1/012119. The additive technology to obtain a three-dimensional model of the 81Cu-19Ni alloy. V R Baraz , S S Gerasimov, I A Gruzdeva, V P Shveikin, A V Chemesova, A O Ovchinnikova and I A Veretennikova
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