ISSN:
1662-9752
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:
Al-Ti-C-P master alloy has been successfully fabricated by SHS-melting technology.Microstructures and phase constituent of Al-Ti-C-P master alloy were investigated using X-raydiffraction (XRD), scanning electron microscopy (SEM) and EDS. The results show that Al-Ti-C-Pmaster alloy comprises TiAl3, TiC, AlP and α-Al matrix. After adding 2.0 wt% Al-Ti-C-P masteralloy, microstructure and mechanical properties (after T6 treating) of ZL117 alloy has been improveddramatically: The average grain size of primary silicon decreases from 260 to 35 μm, edges and anglesof primary silicon are passivated, the morphology of eutectic silicon changes from large needle-likeone to fine rod-like or particle-like one, and the microstructures are noticeably refined; Roomtemperature tensile strength changes from 168 to 260 MPa while elevated temperature tensile strength(at 300[removed info]) varies from 88 to 125 MPa. Impact toughness and macro-hardness(HB) increases to 17J/cm2 and 97 from the original 6.5 J/cm2 and 92
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.947.pdf
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