Effect of Ni as a minority alloying element on the corrosion behavior in Al-Cu-Mg-(Ni) metallic glasses

被引：23

作者：

Aburada, T. ^{[1
]}

Unlu, N. ^{[1
]}

Fitz-Gerald, J. M. ^{[1
]}

Shiflet, G. J. ^{[1
]}

Scully, J. R. ^{[1
]}

机构：

[1] Univ Virginia, Dept Mat Sci & Engn, Ctr Electrochem Sci & Engn, Charlottesville, VA 22904 USA

来源：

SCRIPTA MATERIALIA | 2008年 / 58卷 / 08期

基金：

美国国家科学基金会;

关键词：

corrosion; metallic glasses; aluminum alloys; rapid solidification; melt spinning;

D O I：

10.1016/j.scriptamat.2007.11.041

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The role of Ni in pitting corrosion in a NaCl solution was investigated by comparing near-eutectic amorphous Al-Cu-Mg alloys with and without Ni. The pitting resistance was enhanced significantly by a small Ni addition in both the amorphous and devitrified states. The minority Ni alloying element is beneficial to pitting resistance in addition to enhancing structural and chemical homogeneity by promoting glass formability. Ni is argued to be superior to Cu for improving the pitting resistance of Al. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：623 / 626

页数：4

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