TY - CONF A1 - Cristol, A.L. A1 - Desplanques, Y. A1 - Österle, Werner A1 - Degallaix, G. T1 - Coupling between thermal localisation and friction mechanisms: heat accumulation effect N2 - Heat accumulation induced by a succession of railway brakings leads to changes of the friction conditions occurring in pad-disc contact. Infrared thermography observations show a progressive increase of surface temperature over the succession, as well as a modification of the hot band migration phenomenon. From a tribological point of view, the heat accumulation, accompanied by a wear increase, progressively modifies the friction behaviour from one braking to the next. Post-mortem observations of pads are performed on surface by scanning electron microscopy and in depth after Focus Ion Beam cut by scanning ion microscopy. Observations show that, with heat accumulation, the third body quantity rises inside the contact, in accordance with wear increase. It is concluded that source flows of third body, which increase with temperature, feed aplenty the contact and modify its load-bearing capacity. T2 - JEF 2010 - 6th European conference on braking CY - Lille, France DA - 2010-11-24 KW - Successive braking KW - Heat accumulation KW - Thermal localisation KW - Wear KW - SEM KW - FIB PY - 2010 SP - 61 EP - 69 AN - OPUS4-22729 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Österle, Werner A1 - Müller, Urs A1 - Desplanques, Y. A1 - Bulthé, A.-L. A1 - Degallaix, G. A1 - Dmitriev, A.I. T1 - 3rd Body formation of two different brake pad materials designed for railway application T2 - 5th European Conference on Braking (JEF 2006) CY - Lille, France DA - 2006-11-08 PY - 2006 SP - 107 EP - 115 AN - OPUS4-18699 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -