The paper studies the structure and mechanical properties of the copper alloy based on a Cu–Al–Si–Mn system, produced by wire-feed electron-beam additive manufacturing (EBAM). Energy dispersive X-ray spectroscopy on the scanning electron microscope is carried out to investigate the microstructure and composition of the obtained copper alloy specimens. The tensile strength and microhardness of the alloy specimens are studied to determine its mechanical properties. It is shown that the structure of the manufactured material consists of the κ-phase dendrite grains and the γ-phase layers. According to static tension tests, the copper alloy possesses isotropic hardness and anisotropic ductility. Its hardness values also indicate the anisotropy of mechanical properties due to, mainly, a two-phase structure and nonuniform distribution of microhardness in the bulk of the Cu–Al–Si–Mn system-based copper alloy deposited using wire-fed EBAM.

该论文研究了基于 Cu-Al-Si-Mn 系统的铜合金的结构和机械性能，该系统通过送丝电子束增材制造 (EBAM) 生产。在扫描电子显微镜上进行能量色散 X 射线光谱研究以研究所得铜合金试样的显微组织和成分。研究合金试样的拉伸强度和显微硬度以确定其机械性能。结果表明，所制造材料的组织由κ相枝晶晶粒和γ相层组成。根据静态拉伸试验，铜合金具有各向同性的硬度和各向异性的延展性。其硬度值也表明机械性能的各向异性，主要是由于，