Effect of Extrusion and Heat Treatment on Microstructure and Mechanical Properties of Hypereutectic A390-0.3wt%Nd Alloy

Gao, Bo; Jiang, He; Yingwei, Zhou; Zhu, Guanglin; Xing, Pengfei

doi:10.1590/1980-5373-mr-2018-0899

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…Regarding the general similarity between the size and morphology of Si P particles in Zn-40Al-2Cu and hypereutectic Al-Si alloys, different techniques can be used to modify the shape and distribution of Si P particles in the microstructure of Zn-40Al-2Cu alloy, the most important of which are heat treatment [4], rapid solidification [5,6], mechanical/thermo-mechanical processing [7][8][9], chemical modification [4,[10][11][12], and molten metal processing [13][14][15]. Some techniques are cost-intensive and need special equipment.…”

Section: Introductionmentioning

confidence: 99%

Tribology of Si-rich TIG-deposited coatings on Zn–40Al–2Cu alloy

Rajabi

Taghiabadi

Shaeri

2020

Surface Engineering

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The effect of Zn-40Al-2Cu-xSi (x = 4 and 8 wt-%) tungsten inert gas (TIG) surfaced coatings and multi-pass friction stir processing (FSP) on the tribological properties of Zn-40Al-2Cu alloy was studied. The coatings had a well-modified microstructure comprising of finely dispersed primary Si particles (Si P ). These particles act as in-situ reinforcements, improving coating resistance against the friction-induced strains applied during sliding wear. The results of dry sliding wear showed that, at the applied pressures of 0.25, 0.5, and 0.75 MPa, the wear resistance of 4-pass FSPed coatings containing 4 wt-% Si is higher than that of the base alloy by 27, 47, and 57%, respectively. This can be attributed to the substrate strengthening and formation of compacted tribolayers on the surface of FSPed samples.

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