Microstructure, Tensile Properties, and Corrosion Behavior of Die-Cast Mg-7Al-1Ca-xSn Alloys

Journal Article · Thu Feb 15 04:00:00 EST 2018 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1007/S11665-018-3145-9· OSTI ID:22860641

Wang, Feng; Dong, Haikuo; Sun, Shijie; Wang, Zhi; Mao, Pingli; Liu, Zheng ^[1]

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1. Shenyang University of Technology, School of Materials Science and Engineering (China)

The microstructure, tensile properties, and corrosion behavior of die-cast Mg-7Al-1Ca-xSn (x = 0, 0.5, 1.0, and 2.0 wt.%) alloys were studied using OM, SEM/EDS, tensile test, weight loss test, and electrochemical test. The experimental results showed that Sn addition effectively refined grains and intermetallic phases and increased the amount of intermetallic phases. Meanwhile, Sn addition to the alloys suppressed the formation of the (Mg,Al){sub 2}Ca phase and resulted in the formation of the ternary CaMgSn phase and the binary Mg{sub 2}Sn phase. The Mg-7Al-1Ca-0.5Sn alloy exhibited best tensile properties at room temperature, while Mg-7Al-1Ca-1.0Sn alloy exhibited best tensile properties at elevated temperature. The corrosion resistance of studied alloys was improved by the Sn addition, and the Mg-7Al-1Ca-0.5Sn alloy presented the best corrosion resistance.

• OSTI ID: 22860641
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 2 Vol. 27; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM COMPOUNDS
CALCIUM COMPOUNDS
CORROSION
CORROSION RESISTANCE
ELECTROCHEMISTRY
INTERMETALLIC COMPOUNDS
MAGNESIUM ALLOYS
MICROSTRUCTURE
QUATERNARY ALLOY SYSTEMS
SCANNING ELECTRON MICROSCOPY
TENSILE PROPERTIES
TIN COMPOUNDS