The corrosion performance of die-cast magnesium alloy MRI230D in 3.5% NaCl solution saturated with Mg(OH)2

被引：15

作者：

Aghion, E. ^{[1
]}

Lulu, N. ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel

来源：

MATERIALS CHARACTERIZATION | 2010年 / 61卷 / 11期

关键词：

Die cast magnesium alloys; Corrosion; Stress corrosion; MRI230D; MECHANICAL-PROPERTIES; BEHAVIOR; CREEP; MICROSTRUCTURE; CRACKING;

D O I：

10.1016/j.matchar.2010.07.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The environmental behavior of die cast magnesium alloy MRI230D designated for high temperature applications was evaluated in comparison with regular AZ91D alloy The microstructure examination was carried out using SEM TEM and X ray diffraction analysis the corrosion performance in 3 5% NaCl solution was evaluated by immersion test salt spray testing potentiodynamic polarization analysis and stress corrosion behavior by Slow Strain Rate Testing (SSRT) Although the general corrosion resistance of MRI230D was slightly improved compared to that of AZ91D alloy its stress corrosion resistance was relatively reduced The variations in the environmental behavior of the two alloys were mainly due to the differences in their chemical composition and microstructure after die casting In particular the differences were related to the reduced Al content in MRI230D and the addition of Ca to this alloy which consequently affected its relative microstructure and electrochemical characteristics (C) 2010 Elsevier Inc All rights reserved

引用

页码：1221 / 1226

页数：6

共 19 条

[1]

Aghion E, 2007, MAGNESIUM TECHNOLOGY 2007, P253

[2] Mechanical Properties of Die-Cast Magnesium Alloy MRI 230D [J].