ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
microstructures, aging hardness, mechanical properties of Mg-9Gd-4Y-0.3Zr alloyswere investigated. The microstructure is a typical dendritic structure of as-cast sample, Theaging test of extruded samples were carried at a temperature rang of 200-300°C and at adifferent aging time. The aging peak hardness is about 120HV, tensile strength was tested attemperature 25°C, 200°C, 250°C and 300°C, tensile strengths are 375 Mpa, 364 Mpa, 329Mpa, 286 Mpa respectively, the maximum elongation is 13.32% at 300°C. The fracture modeis mainly microvoid coalescence fracture combination the brittle cleavage fracture at roomtemperature, and microvoid coalescence fracture at 200-300°C
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.167.pdf
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