Characterization and performance of laser melted AZ91D and AM60B

被引：101

作者：

Dubé, D ^{[1
]}

Fiset, M ^{[1
]}

Couture, A ^{[1
]}

Nakatsugawa, I ^{[1
]}

机构：

[1] Univ Laval, Dept Min & Met, Quebec City, PQ G1K 7P4, Canada

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2001年 / 299卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

laser processing; magnesium alloys; corrosion; microstructure;

D O I：

10.1016/S0921-5093(00)01414-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Laser melting can be used to alter the surface of alloys and produce a fine microstructure, usually improving corrosion resistance. In the present work, a pulsed Nd:YAG laser was used to melt and rapidly quench the surface of die cast AZ91D and AM60B magnesium alloys with the objective of improving the corrosion resistance in sail-water (NaCl) solution. The corrosion of AZ91D and AM60B was not significantly reduced by laser melting even though the microstructure of bath alloys was refined but a close examination of corroded surfaces gave indications about some corrosion enhancing factors. The physical aspect of corroded surfaces and the microstructure of laser melted specimens are presented along with the results of corrosion tests. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：38 / 45

页数：8

共 42 条

[1]

*ASTM, 1997, ANN BOOK ASTM STAND, P50

[2]

AUNE TK, 1983, P 40 WORLD MAGN C TO, P52

[3]

BALIGA CB, 1992, MAGNESIUM ALLOYS AND THEIR APPLICATIONS, P191

[4] DEVELOPMENT OF CORROSION-RESISTANT MAGNESIUM ALLOYS .1. CHARACTERIZATION OF SPLAT QUENCHED MG-10AL AND MG-16AL ALLOYS [J].

BALIGA, CB ;

TSAKIROPOULOS, P .

MATERIALS SCIENCE AND TECHNOLOGY, 1993, 9 (06) :507-511

[5] SURFACE CONTAMINATION AND ITS EFFECT ON THE CORROSION OF RAPIDLY SOLIDIFIED MG-AL ALLOY SPLATS [J].

BALIGA, CB ;

TSAKIROPOULOS, P ;

JEYNES, C .

JOURNAL OF MATERIALS SCIENCE, 1991, 26 (06) :1497-1504

[6]

BRANDES EA, 1983, SMITHELLS METALS REF, P13

[7]

CARLSON BE, 1993, P 32 ANN C MET CIM Q, P833

[8]

Chang C. F., 1986, MET POWDER REP, V41, P302

[9]

CHIBA S, 1986, CORROS SCI, V26, P311, DOI 10.1016/0010-938X(86)90051-X

[10]

COTTON JD, 1991, INT J RAPID SOLIDIF, V6, P55

← 1 2 3 4 5 →