Characterization and performance of laser melted AZ91D and AM60B

Authors
Dube, D Fiset, M Couture, A Nakatsugawa, I
Citation
D. Dube et al., Characterization and performance of laser melted AZ91D and AM60B, MAT SCI E A, 299(1-2), 2001, pp. 38-45
Citations number
42
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN journal
09215093 → ACNP
Volume
299
Issue
1-2
Year of publication
2001
Pages
38 - 45
Database
ISI
SICI code
0921-5093(20010215)299:1-2<38:CAPOLM>2.0.ZU;2-Y
Abstract
Laser melting can be used to alter the surface of alloys and produce a fine microstructure, usually improving corrosion resistance. In the present wor k, 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 AZ 91D and AM60B was not significantly reduced by laser melting even though th e microstructure of bath alloys was refined but a close examination of corr oded 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) 200 1 Elsevier Science B.V. All rights reserved.