Scientific Research Publishing

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52691#.VKDC4cCAM4 Author(s)     Avijit Sinha , Zoheir Farhat Affiliation(s) Department of Process Engineering and Applied Science, Materials Engineering Program, Dalhousie University, Halifax, Canada . ABSTRACT Due to their light weight, high corrosion resistance and good heat conductivity, aluminium alloys are used in many industries today. They are suitable for manufacturing many automotive components such as clutch housings. These alloys can be fabricated by powder metallurgy and casting methods, in which porosity is a common feature. The presence of pores is responsible for reducing their strength, ductility and...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50403#.VDzENlfHRK0 Author(s)   Ling Chen 1 , Aylin Ahadi 2 , Jinming Zhou 1 , Jan-Eric Ståhl 1 Affiliation(s) 1 Division of Production and Materials Engineering, Lund University, Lund, Sweden . 2 Division of Mechanics, Lund University, Lund, Sweden . ABSTRACT Surface roughness is a commonly used criterion for characterization of surface quality in a machining operation. In the study of micro-scale mechanical properties of machined surface and cutting tool using nanoindentation method, perfect surface finish on the specimen is often required for the reliable indentation result. However, the perfect surface finish is often difficult to obtain from the machini...