Assessment of V96tss alloy properties under conditions simulating a thermal cycle of fusion welding

Keywords

aluminum alloy, modeling of a welding cycle, heat-affected zone, microstructure, mechanical properties.

Cite as

Kostin V. A., Labur T. M., and Taranova T. G. Assessment of V96tss alloy properties under conditions simulating a thermal cycle of fusion welding. Physicochemical Mechanics of Materials. 2024. 60(3), 130-136.

https://doi.org/10.15407/pcmm2024.03.130

Abstract

Dependence of the fraction and the size of inclusions of intermetallic phases based on Zr and Sc, which change during heating under welding, with the Al–Zn–Mg–Cu alloying system simulated on samples of the high-strength V96tss aluminum alloy was established. Their influence on the fracture toughness parameters during crack initiation and propagation in the metal at the fusion line and the heat-affected zone of the joints was shown. It was determined that the cooling rate of the samples specified the size and shape of intermetallic inclusions located along the grain boundaries. The formation of coarse phase inclusions of various lengths, elliptical or ellipse or sphere-like, causes the appropriate mechanism of alloy fracture.

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