Showing papers by "T. Bell published in 1996"
TL;DR: A study has been made of the sliding wear behaviour of untreated and ion implanted ultra high molecular weight polyethylene against a surface modified titanium alloy using a pin on disc apparatus and found that the presence of water lubrication and a very smooth counterface was necessary to maintain low wear rates of the UHMWPE.
60 citations
TL;DR: In this article, an unlubricated rolling-sliding wear test of as-received and electron beam surface melted complex aluminium bronze, CA104, against hardened En19 steel has been carried out.
37 citations
TL;DR: In this article, a numerical model for the two-dimensional dry sliding contact of two elastic bodies with real rough surfaces has been developed, where an elastic body contacts with a multi-layer surface under both normal and tangential forces.
Abstract: A numerical model for the two-dimensional dry sliding contact of two elastic bodies with real rough surfaces has been developed, where an elastic body contacts with a multi-layer surface under both normal and tangential forces The model uses surface profile data directly recorded with a stylus measuring instrument and it is suitable for use on a microcomputer Green's function for a unit normal load and a unit tangential load for the generalized plane strain problem are derived Verification of the accuracy of the model by reproduction of test case results is presented Contact pressure distribution for layers of varying coefficient of friction, thickness and elastic modulus is analyzed Presented as a Society of Tribologists and Lubrication Engineers paper at the STLE/ASME Tribology Conference in Klssimmee, Florida, October 8–11, 1995
34 citations
TL;DR: In this article, the wear properties of a complex aluminium bronze against a hardened steel have been studied using dry rolling-sliding wear testing, noting the changes in behaviour conferred by the electron beam surface melting treatment.
26 citations
TL;DR: In this article, the effect of surface melting on hardness, rolling-sliding wear resistance and friction coefficient, and electrochemical corrosion properties has been investigated on a complex aluminium bronze, CA104.
Abstract: Electron beam surface melting has been carried out on a complex aluminium bronze, CA104. The structural changes have been studied using optical microscopy, scanning and transmission electron microscopy, and X -ray diffraction analysis. The effect of surface melting on hardness, rolling–sliding wear resistance and friction coefficient, and electrochemical corrosion properties has been investigated. It was found that the surface melting transformed the original α + K structure into a martensitic one. Consequently, the hardness was almost doubled in the melted region. Subsequent tempering further increased the hardness. When running against a hardened steel in dry rolling–sliding wear both the weight loss and the coefficient of friction were reduced by surface melting. Electrochemical corrosion tests also showed an improvement in corrosion resistance in simulated cooling water after surface treatment.
12 citations