Narodna in univerzitetna knjižnica, Ljubljana (NUK)
Naročanje gradiva za izposojo na dom
Naročanje gradiva za izposojo v čitalnice
Naročanje kopij člankov
Urnik dostave gradiva z oznako DS v signaturi
  • A modified heat treatment to improve the properties of double-layer cast rolls = Modificirana toplotna obdelava za izboljšanje lastnosti dvoplastnih valjev za vroče valjanje
    Sedlaček, Marko, 1978- ; Podgornik, Bojan, 1970- ; Milanović, Slobodan
    In practice, the wear resistance, lifetime and capability of components and tools to resist loading greatly depend on the residual stress field in the material. This is especially true for ... hot-rolling applications, which require rolls with hard, heat- and wear-resistant surfaces, a tough core and the proper compressive residual stress level to resist Hertzian cyclic loading. If the casting, heat treatment, cooling process and surface machining and grinding are not done properly, a very high and uneven tensile residual stress field may occur, causing a drop in the wear resistance, cracking or even fracture of the roll. The aim of this investigation was to determine the impact of various heat treatments of double-layer cast rolls on the values and distribution of residual stresses in the rolls made from semi-high-speed steel with a high content of chromium (SHSS HCS). Using the hole-drilling method, the residual stress depth distribution was measured circumferentially and transversely on the double-layer cast roll surface after casting, heat treatment, turning and grinding. Furthermore, using different turning and grinding parameters (speed, feed), and heat-treatment parameters (temperature, time), the influence of these parameters on the residual stress level and the wear resistance of roll's outer layer were determined.
    Vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 48, št. 6, nov.-dec. 2014, str. 983-990)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2014
    Jezik - angleški
    COBISS.SI-ID - 1110698

vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 48, št. 6, nov.-dec. 2014, str. 983-990)

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