Effect of Sn Addition in the Microstructure Refinement and Corrosion Resistance of Cu-Zr-Al-Ag Alloy

Autor:	Amanda Ventura Castilho, Dilson Silva dos Santos
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Nanotechnology Nanomaterials Microstructural refinement Glass-forming ability Bulk Metallic Glasses Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research, Vol 22, Iss 2 (2019)
Druh dokumentu:	article
ISSN:	1516-1439 1980-5373
DOI:	10.1590/1980-5373-mr-2017-1139
Popis:	In this paper, a composition of known high glass-forming ability, Cu42Zr42Al8Ag8 and a novel Cu42Zr42Al8Ag4Sn4, were produced by suction-casting. After rapid solidification of both alloys, X-ray diffraction patterns along with crystallite size estimation by Scherrer equation and scanning electron microscopy images revealed a refined microstructure, composed mainly by AlCu2Zr, CuZr2 and Cu10Zr7 phases. Transmission electron microscopy indicated the presence of small crystalline precipitates in the Cu42Zr42Al8Ag4Sn4 suction-casted sample. Polarization curves showed a higher passivation current in the Sn containing sample, suggesting a decrease in corrosion resistance.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/2577d3750f474238a4317be2e109ed18 Zobrazit plný text záznamu View record in DOAJ