Grain refinement of aluminum and aluminum alloys by Sc and Zr

Z Lei, S Wen, H Huang, W Wei, Z Nie - Metals, 2023 - mdpi.com
Rare earth elements and transition elements are widely used in aluminum alloys,
magnesium alloys and copper alloys due to their unique microalloying effects. With regard to …

Melt viscosity of light alloys: Progress and challenges

Y Fu, H Li, K Tang, S Yang, Y Shi, B Liu, Q Luo… - Journal of Materials …, 2024 - Elsevier
The viscosity of molten metals is a critical parameter influencing melt fluidity, alloy forming
quality, and casting performance. It is therefore essential to maintain melt viscosity within an …

An anti Si/Zr-poisoning strategy of Al grain refinement by the evolving effect of doped complex

D Li, X Yan, Y Fan, G Liu, J Nie, X Liu, S Liu - Acta Materialia, 2023 - Elsevier
The issue of how to avoid the poisoning phenomenon of α-Al grain refinement caused by
special elements (such as Si and Zr) has always been the focus of research attention. In this …

Enhanced strength and ductility in Al-Zn-Mg-Cu alloys fabricated by laser powder bed fusion using a synergistic grain-refining strategy

X Liu, Y Liu, Z Zhou, Q Zhan - Journal of Materials Science & Technology, 2022 - Elsevier
Grain refinement is critical to surpassing the bottlenecks of inherent hot tearing of high-
strength aluminum alloys fabricated by additive manufacturing (AM). In this study, a …

Effectively refining Al-10Si alloy via Al-Ti-Nb-B refiner with Nb2O5

L Zhu, Y Zhang, Q Luo, L Peng, Q Li - Journal of Materials Science & …, 2024 - Elsevier
Abstract Al-Ti-Nb-B refiner shows excellent grain refinement effect for Al-Si alloys compared
to Al-5Ti-B refiner, but the addition of Nb increases the cost of production. This paper …

A new insight into heterogeneous nucleation mechanism of Al by non-stoichiometric TiCx

H Yang, Z Qian, H Chen, X Zhao, G Han, W Du, X Nie… - Acta Materialia, 2022 - Elsevier
Al–Ti–C master alloy has been known as an efficient grain refiner for a series of Al alloys
since 1950s. However, the grain refinement mechanism is still not fully elucidated up to now …

Microstructural evolution and strengthening mechanism of Al–Mg alloys with fine grains processed by accumulative continuous extrusion forming

B Yang, Y Wang, M Gao, C Wang, R Guan - Journal of Materials Science & …, 2022 - Elsevier
In this work, the mechanical properties and strengthening mechanisms induced by
microstructural evolution in a rheo-extruded 5087 alloy processed via accumulative …

Efficient alloy design of Sr-modified A356 alloys driven by computational thermodynamics and machine learning

W Yi, G Liu, Z Lu, J Gao, L Zhang - Journal of Materials Science & …, 2022 - Elsevier
A356 alloys are widely used in industries due to their excellent comprehensive performance.
Sr is usually added in A356 alloys to improve their mechanical properties. There have been …

Mechanism of Fe removal by Sn addition in Al-7Si-1Fe alloy

Q Luo, M Cong, H Li, L Zhu, H Chen, Q Li - Journal of Alloys and …, 2023 - Elsevier
Excess impurity Fe will form various intermetallic compounds in Al-based alloys, such as α-
Al 8 Fe 2 Si and β-Al 5 FeSi, which greatly reduce the elongation of alloys. Therefore, Fe …

Effect of quenching residual stress on precipitation behaviour of 7085 aluminium alloy

J Liu, Z Du, J Su, J Tang, F Jiang, D Fu, J Teng… - Journal of Materials …, 2023 - Elsevier
The quenching-induced residual stress in ultrahigh strength Al-Zn-Mg-Cu alloys has a great
influence on their precipitation behaviour in subsequent heat treatment and the properties of …