Effect of ultrasound treatment of AlSi5 liquid alloy on corrosion resistance

被引：7

作者：

Arrighini, A. ^{[1
]}

Gelfi, M. ^{[1
]}

Pola, A. ^{[1
]}

Roberti, R. ^{[1
]}

机构：

[1] Univ Brescia, Dipartimento Ingn Meccan & Ind, I-25123 Brescia, Italy

来源：

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2010年 / 61卷 / 03期

关键词：

MELTS;

D O I：

10.1002/maco.200905303

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The application of power ultrasound to liquid alloys can be a simple and cost effective method to induce both degassing and grain refinement in a single step, without the need of inert gas or inoculants additions. In this paper, the treatment of liquid hypoeutectic AlSi5 alloy by ultrasound waves and its effects on microstructure were investigated. The corrosion behavior of ultrasound treated samples was compared to that of the non-treated ones by means of immersion and electrochemical tests. It was observed that the ultrasound treated alloy offers better quality, higher mechanical properties and improved corrosion resistance, as a consequence of a more uniform distribution of the solute.

引用

页码：218 / 221

页数：4