Effect of Erbium–Zirconium Composite Modifications on the Microstructure and Mechanical Properties of A356 Aluminum Alloy

Ji, Liantao; Wang, Wei; Huang, Hui; Wen, Shuguang; Gao, Kunyuan; Wu, Xiaolan

doi:10.1007/978-981-13-0104-9_11

Cited by 3 publications

(1 citation statement)

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“…It has been reported that Zr can also form inoculant pro-peritectic intermetallic and restrict dendrites’ growth rate during solidification [16]. On the other hand, Zr is a surface-active element that accumulates in the solid–liquid interface between α-Al dendrite and A356 melt, creating a constitutional super-cooling to impede the growth of α-Al dendrites [34]. Besides, several mechanisms have been proposed to explain the eutectic silicon modification in the Al–Si alloys.…”

Section: Resultsmentioning

confidence: 99%

Aging and wear characteristics of A356 alloy with Er and Zr addition

Reihanian

Ranjbar

Hajizadeh

2023

Materials Science and Technology

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The present work investigates the effect of aging on the microstructure, mechanical properties, and wear behaviour of the cast A356 alloy with Er and Zr addition. The aged A356-0.25Zr and A356-0.25Er alloys revealed some but not all of the eutectic and columnar structures. The microstructure of A356, A356-0.5Er, and A356-0.5Er-0.25Zr alloys exhibited large α-Al grains with discrete eutectic silicon. Various intermetallic types and morphologies were observed after the peak aging. The highest hardness (∼120 HV) and the highest tensile strength (∼215 MPa) were achieved in the A356-0.25Zr alloy under peak-aged conditions. The A356 alloy revealed the lowest weight loss and friction coefficient, though it had the least hardness. Delamination was the dominant wear mechanism in all alloys.

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Section: Resultsmentioning

confidence: 99%