Results 11 to 20 of about 811,199 (195)

Grain Initiation and Grain Refinement: An Overview

open access: yesMetals, 2022
Heterogeneous nucleation and grain initiation are two different processes in early-stage solidification (ESS), although both are deterministic. Heterogeneous nucleation refers to the formation of a 2-dimensional (2D) nucleus (a crystal plane of the solid)
Zhongyun Fan, Feng Gao
doaj   +6 more sources

Grain refinement and strength enhancement in Mg wrought alloys: A review

open access: yesJournal of Magnesium and Alloys, 2023
Low absolute strength becomes one major obstacle for the wider applications of low/no rare-earth (RE) containing Mg alloys. This review firstly demonstrates the importance of grain refinement in improving strength of Mg alloys by comprehensively ...
Hucheng Pan, Hongbo Xie, Jingren Li
exaly   +3 more sources

Effect of solutes on grain refinement

open access: yesProgress in Materials Science, 2022
Abstract Grain refinement not only enhances the mechanical performance of as-cast metallic materials but also provides an effective mechanism for controlling cast defects, such as macro-segregation, porosity and coarse second phase particles. Therefore, understanding grain refinement of alloys with different solute additions is of both theoretical ...
Hua Men, Zhongyun Fan
exaly   +3 more sources

Recent advances on grain refinement of magnesium rare-earth alloys during the whole casting processes: A review

open access: yesJournal of Magnesium and Alloys, 2023
High-performance cast magnesium rare-earth (Mg-RE) alloys are one of the most important materials among all developed Mg alloy families, and have shown great potential in military and weapons, aerospace and aviation, orthopedic implants, etc. Controlling
Guohua Wu   +2 more
exaly   +3 more sources

Effect of Al addition on microstructure of AZ91D [PDF]

open access: yes, 2014
Casting is a net shape or near net shape forming process so work-hardening will not be applicable for improving properties of magnesium cast alloys.
Joshi, U, Babu, NH
core   +7 more sources

Grain refinement and nucleation processes in Aluminium alloys through liquid shearing [PDF]

open access: yes, 2009
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The industrial practice of grain refinement of aluminium alloys involves the addition of inoculant particles to initiate alpha-aluminium grains at small ...
Haghayeghi, Reza
core   +7 more sources

A comparative study of the role of solute, potent particles and ultrasonic treatment during solidification of pure Mg, Mg–Zn and Mg–Zr alloys

open access: yesJournal of Magnesium and Alloys, 2021
Ultrasonic treatment (UST) applied during the solidification of pure Mg, eutectic (Mg – Zn) and peritectic (Mg – Zr) alloys was investigated in order to explore the grain refinement mechanisms.
Nagasivamuni Balasubramani   +4 more
doaj   +1 more source

Grain Refinement of Aluminum and Aluminum Alloys by Sc and Zr

open access: yesMetals, 2023
Rare earth elements and transition elements are widely used in aluminum alloys, magnesium alloys and copper alloys due to their unique microalloying effects.
Zhiguo Lei   +4 more
doaj   +1 more source

Recent Advances in the Grain Refinement Effects of Zr on Mg Alloys: A Review

open access: yesMetals, 2022
As the lightest structural materials, Mg alloys show great effectiveness at energy saving and emission reduction when applied in the automotive and aerospace fields.
Ming Sun   +5 more
doaj   +1 more source

Investigation of Ti1−x(Zr,Ta,V,W)xB2 and Al3Ti1−x(Zr,V)x grain refiners in additively manufactured Al-2 wt%Cu alloys by a high throughput method

open access: yesMaterials & Design, 2022
Grain refinement plays a central role in powder bed fusion (PBF) additive manufacturing by preventing hot cracking and thus enabling the development of high-strength alloys.
Freddy Leijon   +5 more
doaj   +1 more source

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