A Review on Grain Refinement of Aluminum Alloys: Progresses
2017年3月25日 · The main objective of the present review is to summarize the primary types of technologies currently applied for grain refining of aluminum alloys: grain refining by vibration and stirring (VS) during solidification, rapid solidification (RS), the addition of grain refiner (GR) and severe plastic deformation (SPD).
A Review on Fundamentals of Grain Refining of Al-Si Cast Alloys
2023年10月11日 · Grain refining in aluminum alloys aims to increase the number of crystallization sites of the pro-eutectic phase (α-Al phase) and avoid columnar growth. In order to have a fine scale grain size, the most widely practiced way is to present effective nuclei in the liquid metal using the Al-Ti-B grain refiners which usually contain active seeds ...
Grain Refinement of Aluminum and Aluminum Alloys by Sc and …
2023年4月12日 · This paper first summarizes the grain refinement mechanisms and analyzes the effects of rare earth elements and transition elements on the grain refinement of aluminum and aluminum alloys, and summarizes the elements suitable for the preparation of Al-M master alloys and their refinement mechanism.
A Review on Grain Refinement of Aluminum Alloys: Progresses, …
Grain refinement, which is obtained by changing the size of grain structure by different techniques, is a preferred method to improve simultaneously the strength and plasticity of metallic materials. Therefore, grain refining of aluminum is regarded as a key technique in aluminum processing industry.
Grain Refinement of Aluminium Alloys - Belmont Metals
2017年12月18日 · When seeking an enhanced microstructure for aluminum, you want a finer equiaxed grain. With a finer and smaller grain, the aluminum has better castability and lower density that is desired when creating components and systems in …
Optical microscopy to analyse aluminium alloy grains.
2021年6月22日 · This blog explains how metallurgists use optical microscopy to analyse aluminium alloy grains, and why microstructure is important.
Prediction of Grain Size in Cast Aluminum Alloys - MDPI
2022年3月29日 · In this article, the empirical and theoretical models used for grain size prediction are reviewed, including the solute elements, solidification temperature gradient, grain growth rate, and potent nucleant effects on grain refinement, as …
Grain refinement of commercially pure aluminum with addition …
2020年10月6日 · The grain refinement of commercial purity aluminum and its alloys by adding inoculant to get uniform, fine microstructure in casting progress is a common practice in commercial production which...
On the Understanding of Aluminum Grain Refinement by Al-Ti-B …
2014年11月25日 · Al-Ti-B type master alloys have been widely used in the grain refinement of aluminum since 1940s. The introduction of Al3Ti and TiB2(AlB2) particles reduces the grain sizes down to about 200 micrometer level and makes aluminum alloys castable.
A New Metallographic Technique for Revealing Grain ... - Springer
2012年10月6日 · Grain Refinement in Aluminum Alloys. Digital Technologies in Detecting Inhomogeneous Concentration Zones in Heat-Resistant Nickel Alloys Structure, Including Those Obtained by Selective Laser Melting. Introduction.