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Wear behaviour of deep-cryogenic treated high-speed steels at different loadsKalin, Mitjan ; Leskovšek, Vojteh ; Vižintin, JožeTools for the cold-working applications are typically made from the high-speed steels. However, due to wear and plastic deformation their performance in several applications is not adequate and ... should be further improved. By using appropriate combination of vacuum heat-treatment in conjunction with a deep-cryogenic treatment (duplex treatment) the microstructure of high-speed steel matrix can be substantially changed and the hardness and fracture toughness can be modified and optimised. In the present work we have investigated the effect of four different tempering temperatures of vacuum and cryogenically treated ESR AISI M2 high-speed steel on the resulting combinations of microstructure, hardness and toughness and their effect on the wear mechanisms at different loads. The results showed that at relatively high loads the different treatments resulted in an order-of-magnitude difference of wear resistance, while at low loads the selected treatments were efficient enough to keep the wear within the mild wear regime and small variations between the samples. However, the overall wear transition did not occur at any load used or any sample treatment, although some small differences in wear mechanisms can be seen, primarily depending on the fracture toughness of the samples.Vir: Materials and manufacturing processes. - ISSN 1042-6914 (Letn. 21, št. 8, 2006, str. 741-746)Vrsta gradiva - članek, sestavni delLeto - 2006Jezik - angleškiCOBISS.SI-ID - 9672219
Avtor
Kalin, Mitjan |
Leskovšek, Vojteh |
Vižintin, Jože
Teme
nizkotemperaturne obdelave |
Duplex postopki |
lomna žilavost |
trenje |
trdota |
visokohitrostna jekla |
obremenitve |
mikrostrukture |
plastična deformacija |
tribologija |
obraba |
cryogenic treatment |
deep-cryogenic treatment |
Duplex treatment |
fracture toughness |
friction |
hardness |
high-speed steel |
load |
microstructure |
wear |
plastic deformation |
tribology
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Kalin, Mitjan | 14556 |
Leskovšek, Vojteh | 07642 |
Vižintin, Jože | 00812 |
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