简介概要

Morphologies of strontium-modified A357 alloy and its mechanisms

来源期刊:中国有色金属学报(英文版)2003年第2期

论文作者:朱兆军 曾松岩 金云学

文章页码:325 - 328

Key words:A357 alloy; original alloy; modification; eutectic silicon

Abstract: The microstructure evolution for A357 alloy modified by original Al-10Sr alloy was systematically investigated. The results show that the eutectic silicon phase gets finer and more homogeneous with the increase of Sr content and the modifying temperature. Modification at the performing temperature of 740℃ and with Sr contents of 0.03%-0.05% (mass fraction) turns the microstructure into the finest fibers. And the mechanism of evolution was also investigated based on the TEM observation.

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