Influence of laser surface hardening on corrosion properties of Al-Zn-Si cast alloy

Autor:	E. Tillová, L. Kuchariková, M. Chalupová, J. Belan, A. Vaško, I. Švecová
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	Al-Zn-Si cast alloys laser surface hardening microstructure corrosion properties Mining engineering. Metallurgy TN1-997
Zdroj:	Metalurgija, Vol 56, Iss 1-2, Pp 47-50 (2017)
Druh dokumentu:	article
ISSN:	0543-5846 1334-2576
Popis:	This work is focused on the effect of the laser surface treatment (laser power 50 and 80 W) on microstructure and corrosion properties of self-hardened AlZn10Si8Mg cast alloy used for engine and vehicle constructions. The electrochemical impedance spectroscopy (EIS) technique and Nyquist plots in a 1M NaCl test solution at 20 °C were carried out. A detailed corrosion study showed that corrosion resistance samples with laser layer were marginally less; probably the presence of chloride ions significantly damaged the Al2O3 film and caused the formation of NaAlO2.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/54e9cdbff7be4a2aaf6df5b2e2c7441b Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF