TY - GEN
T1 - Friction behaviour of hot pressed sintered-metal friction materials for railways braking applications
AU - Pérez, B.
AU - Echeberria, J.
N1 - Publisher Copyright:
© European Powder Metallurgy Association (EPMA)
PY - 2019
Y1 - 2019
N2 - Alternative Hot-Pressing can provide in one-step process higher density, microstructure and properties improvement of sintered-metal friction components. In the previous research presented in Euro PM 2018, the influence of hot-pressing parameters on the density, microstructure and mechanical properties of copper-based friction materials was presented. The results showed that optimum conditions of hot pressing are unique for each composition. Hot pressing enhances the densification of samples, taking place at much lower temperature (<200 °C) than conventional processing. It was also proved that powder granulation is an effective way to avoid the presence of different densification areas along the inner section of the samples. In the present wok, tribological and wear tests have been carried out on a pin-on-disc system at different loads and sliding speeds. Results show that the friction behavior, especially wear resistance, is also improved by the use of hot-pressing as single-step process.
AB - Alternative Hot-Pressing can provide in one-step process higher density, microstructure and properties improvement of sintered-metal friction components. In the previous research presented in Euro PM 2018, the influence of hot-pressing parameters on the density, microstructure and mechanical properties of copper-based friction materials was presented. The results showed that optimum conditions of hot pressing are unique for each composition. Hot pressing enhances the densification of samples, taking place at much lower temperature (<200 °C) than conventional processing. It was also proved that powder granulation is an effective way to avoid the presence of different densification areas along the inner section of the samples. In the present wok, tribological and wear tests have been carried out on a pin-on-disc system at different loads and sliding speeds. Results show that the friction behavior, especially wear resistance, is also improved by the use of hot-pressing as single-step process.
UR - https://www.scopus.com/pages/publications/85101977926
M3 - Conference contribution
AN - SCOPUS:85101977926
T3 - Euro PM 2019 Congress and Exhibition
BT - Euro PM 2019 Congress and Exhibition
PB - European Powder Metallurgy Association (EPMA)
T2 - European Powder Metallurgy Congress and Exhibition, Euro PM 2019
Y2 - 13 October 2019 through 16 October 2019
ER -