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2020 №10 (06) DOI of Article
10.37434/tpwj2020.10.07
2020 №10 (08)

The Paton Welding Journal 2020 #10
TPWJ, 2020, #10, 35-39 pages

Influence of antimony on structure and mechanical properties of pre-eutectic copper-phosphorus alloys

Authors
S.V. Maksymova, A.N. Pisarev, P.V. Kovalchuk and V.V. Voronov
E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

Abstract
The results of investigations of pre-eutectic alloys of Cu–P–Sb system are presented. The melting temperature range was determined using high-temperature differential thermal analysis. It was found that antimony alloying of copper-phosphorus pre-eutectic alloy provides a decrease in the solidus and liquidus temperature. On the basis of experimental and literature data, the surfaces of liquidus and solidus of ternary alloys were constructed. Using micro-X-ray spectral analysis, the chemical composition and a number of structural components of Cu–6.29P–1.97Sb alloy were determined. The influence of antimony on technological and mechanical properties, as well as morphology of cast ternary pre-eutectic copper-phosphorus alloys is shown. 10 Ref., 2 Tables, 6 Figures.
Keywords: copper-phosphorus pre-eutectic alloys, antimony, temperature of solidus and liquidus, microstructure, ultimate tensile strength

Received 30.09.2020

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