Sintered High Speed Steel-Base Composites For Wear And Sliding Applications
* Jan Leżański, * Janusz Konstanty, ** Jan Kazior * Akademia Górniczo-Hutnicza, Wydział Metalurgii i Inżynierii Materiałowej, al. Mickiewicza 30, 30-059 Kraków ** Politechnika Krakowska, Wydział Mechaniczny, ul. Jana Pawła II 37, 31-864 Kraków
Annals 1 No. 1, 2001 pages 32-34
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abstract PM route has been chosen to fabricate M3/2 HSS-base wear resistant composite materials with WC and Cu additions of 0÷30 wt.-% and 7.5÷45 wt.-% respectively. The effects of the mixed powder composition on its cold compressibility and sintering behaviour have been investigated. The kinetics of sintering was monitored by means of dilatometry. The as-sintered specimens were subjected to density measurements, hardness and wear resistance tests, micro-structural examinations as well as X-ray diffraction analysis. It has been found that WC reinforced material shows superior resistance to wear while higher Cu content markedly improves sliding properties thus creating prospects of new applications.