A New Approach to Refine Grains in Al Alloys1. Issue 6 (3rd October 2014)

• Record Type: Journal Article
• Authors: Bai, Zhihao; Qiu, Feng; Zhang, Tao; Jiang, Qichuan
• Is Part Of: Advanced engineering materials. Volume 17:Issue 6(2015:Jun.)
• Page Start: 796
• Page End: 801
• Publication Date: 2014-10-03
• Subjects: Materials -- Periodicals; 620.11
• DOI: 10.1002/adem.201400318
• Languages: English
• ISSNs: 1438-1656

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>A new refining grains strategy is reported. A significant refining effect of α‐Al grain from 180 to 32 μm can be achieved by adding 0.2 wt% Zr₅₅Cu₃₀Al₁₀Ni₅ metallic glass into Al–Cu melt. This remarkable refinement effect is mainly attributed to the Zr₂Cu and ZrCu(B2) crystallization phases, and they will act as the heterogeneous nucleation sites for α‐Al grains because of their high melt points, small, uniform sizes and good lattice mismatch with α‐Al matrix. <graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgjrq4vd5d" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </abstract>