Influence of manufacturing technology on tribological properties of A390.0 alloy
Journal Title: Journal of Achievements in Materials and Manufacturing Engineering - Year 2016, Vol 77, Issue 1
Abstract
Purpose: In this paper, results of tribological studies on AlSi17Cu5Mg alloy subjected to amodification (CuP10) and a significant overheating above Tliq are presented, referring themto the starting material.Design/methodology/approach: The influence of the applied technologies on therefinement of the primary crystals of Si was defined by determination of stereologicalparameters. In case of the overheated alloy, the primary crystals of silicon assume the formsof polygons with sharp edges after the overheating. In practice, it results in a decrease intribological properties and an increase in the coefficient of friction in relation to the alloymodified with phosphorus.Findings: The result show that all investigated properties were changed. Significantdifferences between the analyzed specimens were proved in the friction coefficient and inthe wear rate of the tested friction connections.Research limitations/implications: The application of modified by CuP10 aluminumalloy allows to reduce the friction coefficient between tested surface and counter-samplesand also reduce the wear rate. This property’s causes that this material can be used in manyapplications where the aim is to reduce friction coefficient and wear rate.Practical implications: Reducing of friction coefficient and increase wear resistancecauses that these materials can be used in many applications in the automotive industrysuch as blocks of engines, cylinders etc.Originality/value: Influence of aluminium modification on chosen tribological propertieshave been investigated.
Authors and Affiliations
R. Wieszała, J. Piątkowski, M. Roszak, W. Pakieła
Keywords
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