VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • The influence of MoS2 additions on the densification of water-atomized HSS powders
    Šuštaršič, Borivoj ...
    Molybdenum disulphide (MoS[sub]2) might be a useful addition in the production of composite self-lubricating high-speed steel parts, which are used in different anti-wear applications. MoS[sub]2 ... might also has a favourable influence on the synthesis of sintered high-speed steels (HSSs) improving the compressibility of the metal powder mixture during its cold compaction, as well as acting as a sinterability enhancer of powder compacts during their sintering. In view of this, the compressibility and the sinterability of M3/2 and M35 types of HSS powder mixtures with MoS[sub]2 additions were investigated. In this article, the influence of MoS[sub]2 additions on the densification during cold compaction and vacuum sintering of selected HSSs is presented. It has been established that the MoS[sub]2 promotes a consolidation of HSS powders during automatic die compaction, as well as final densification during sintering. Sintering of HSS-MoS[sub]2 powder mixtures proceeds by the combination of a reactive and supersolidus liquid-phase sintering process. The added MoS[sub]2 reacts with the steel matrix, enhancing densification. Fine dispersion of complex sulfides (Cr, V, fe)S is formed, which improves the machinability and tribological properties of sintered steel.
    Vir: Journal of materials processing technology. - ISSN 0924-0136 (Vol. 173, no. 3, 2006, str. 291-300)
    Vrsta gradiva - članek, sestavni del
    Leto - 2006
    Jezik - angleški
    COBISS.SI-ID - 422058

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