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:
Grain refining experiments for casting of pure Al were conducted to evaluate the grainrefinement performance of an Al-5mass%Ti alloy refiner before and after cold rolling. Al3Tiparticles in the Al-Ti alloy refiner were efficiently fragmented by cold rolling. The size of theAl3Ti particles in cold rolled Al-Ti alloy refiner decreased from 280μm to 30μm with increasingreduction ratio of cold rolling. Mean size of α-Al grains in pure Al cast refined by the cold rolledAl-Ti alloy refiner decreased from about 500μm to 200μm with increasing the reduction ratio. Inorder to investigate mechanical property of the pure Al cast refined by the cold rolled Al-Ti alloyrefiner, Vickers hardness test and tensile test were conducted. Strength of the pure Al cast refinedby the cold rolled Al-Ti alloy refiner increased with increasing the reduction ratio. The strengthimprovement of pure Al cast refined by the cold rolled Al-Ti alloy refiner followed Hall-Petchrelationship. From obtained results, it was concluded that cold rolling for refiner is usefulpractical application for pure Al cast
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/13/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.519-521.1859.pdf
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