'In-situ' weld-alloying/laser beam welding of SiCp/6061Al MMC

Authors
Wang, HM Chen, YL Yu, LG
Citation
Hm. Wang et al., 'In-situ' weld-alloying/laser beam welding of SiCp/6061Al MMC, MAT SCI E A, 293(1-2), 2000, pp. 1-6
Citations number
23
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
293
Issue
1-2
Year of publication
2000
Pages
1 - 6
Database
ISI
SICI code
0921-5093(20001130)293:1-2<1:'WBWOS>2.0.ZU;2-Z
Abstract
In this paper, 'in-situ' weld-alloying/laser beam welding with titanium as alloying element is utilized to join SiCp/6061Al MMC in order to prevent th e formation of the needle-like harmful Al4C3 phases in the weld. Microstruc ture of the weld is characterized as functions of alloying content and proc essing parameters. Results show that the needle-like harmful aluminum carbi des are completely eliminated. A central fusion weld joint reinforced by Ti C, Ti5Si3 and Al3Ti is produced by 'in-situ' weld-alloying/laser beam weldi ng of SiCp/6061Al MMC, while some large pores are formed in the partly melt ed zone. (C) 2000 Elsevier Science S.A. All rights reserved.