TY - JOUR A1 - Kloß, Heinz A1 - Woydt, Mathias T1 - Prediction of tribological limits in sliding contacts: flash temperature calculations in sliding contacts and material behavior T2 - Journal of Tribology N2 - In order to achieve greater efficiency or to meet light weight requirements, components are downsized. This, however, increases the load, e.g., Hertzian or nominal contact pressures and stresses of tribosystems. This load is expressed as pₐ·v-value, the product of nominal contact pressure and sliding velocity. pₐ·v-values are an effective tool for design engineers for predicting low wear/high wear transitions. Therefore, in the present work, topographical analysis has been combined with the plasticity of micro-asperities and the flash temperatures to estimate the limits of pₐ·v diagrams. The central piece of this set of models presented here is the calculations for flash temperatures and contact mechanics of micro-asperities. This central piece is used to predict the performance of materials in high velocity (turbines, machinery) and low velocity (human joint) applications. It is shown that the model combination suggested here is a useful tool for screening and preselecting a candidate and new materials with respect to tribological requirements before engaging in expensive testing. PB - The American Society of Mechanical Engineers KW - Hot spot KW - Flash temperature KW - Micro-asperity KW - Abrasive wear KW - Turbine KW - Artificial hip joint KW - Low wear/high wear transition PY - 2016 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/36122 AN - OPUS4-36122 SN - 0742-4787 SN - 1528-8897 VL - 138 IS - 3 SP - 031403-1 EP - 031403-11 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany