caa a22 4500 463226135 CHVBK 20180405153227.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10853-007-1633-7 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1633-7 Influence of melt treatments on sliding wear behavior of Al-7Si and Al-7Si-2.5Cu cast alloys [Elektronische Daten] [K. Basavakumar, P. Mukunda, M. Chakraborty] The microstructures and dry sliding wear behavior of Al-7Si and Al-7Si-2.5Cu cast alloys were studied after various melt treatments like grain refinement and modification. Results indicate that combined grain refined and modified Al-7Si-2.5Cu cast alloys have microstructures consisting of uniformly distributed α-Al grains, eutectic Al- silicon and fine CuAl2 particles in the interdendritic region. These alloys exhibited better wear resistance in the cast condition compared with the same alloy subjected to only grain refinement or modification. The improved wear resistances of Al-7Si-2.5Cu cast alloys are related to the refinement of the aluminum grain size, uniform distribution of eutectic Al-silicon and fine CuAl2 particles in the interdendritic region resulting from combined refinement and modification. This paper attempts to investigate the influence of the microstructural changes in the Al-7Si and Al-7Si-2.5Cu cast alloys by grain refinement, modification and combined action of both on the sliding wear behavior. Springer Science+Business Media, LLC, 2007 Basavakumar K. Department of Metallurgical and Materials Engineering, Indian Institute of Technology, 721302, Kharagpur, India aut Mukunda P. Department of Metallurgical and Materials Engineering, Indian Institute of Technology, 721302, Kharagpur, India aut Chakraborty M. Department of Metallurgical and Materials Engineering, Indian Institute of Technology, 721302, Kharagpur, India aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/18(2007-09-01), 7882-7893 0022-2461 42:18<7882 2007 42 10853 https://doi.org/10.1007/s10853-007-1633-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1633-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Basavakumar K. Department of Metallurgical and Materials Engineering, Indian Institute of Technology, 721302, Kharagpur, India aut NATIONALLICENCE 700 1- Mukunda P. Department of Metallurgical and Materials Engineering, Indian Institute of Technology, 721302, Kharagpur, India aut NATIONALLICENCE 700 1- Chakraborty M. Department of Metallurgical and Materials Engineering, Indian Institute of Technology, 721302, Kharagpur, India aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/18(2007-09-01), 7882-7893 0022-2461 42:18<7882 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer