National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
High temperature creep in cast Ni-Cr-W-C alloys
Sklenička, Václav ; Kudrman, J. ; Kuchařová, Květa ; Daněk, Rostislav ; Hrbáček, K.
A comparison between the creep characteristics of the two model Ni-Cr-W-C alloys under comparable creep conditions shows that creep strengthening is strongly dependent on the tungsten content.
Properties of NiCrW alloys during long-term high-temperature annealing
Kudrman, J. ; Podhorná, B. ; Hrbáček, K. ; Sklenička, Václav
The results of investigation of mechanical properties and their changes during long-term annealing are presented for model NiCrWC alloys. The relationship between the alloy properties and its microstructure is discussed.
Properties and microstructure of cast nickel-chromium alloys containing tungsten and carbon as alloying elements
Kudrman, J. ; Sklenička, Václav ; Čmakal, J.
Model fast nickel-chromium alloys containing W and C as alloying elements exhibit markedly better creep resistance than is possible with currently available commercial nickel-chromium alloys. The model alloys are reinforced by primary and secondary tungsten carbides.
Creepové chování modifikované 9 Cr martenzitické oceli po dlouhodobém žíhání
Sklenička, Václav ; Kudrman, J. ; Kuchařová, Květa ; Míková, R. ; Kloc, Luboš ; Svoboda, Milan
The results show that the creep resistance of the aged steels is considerably deteriorated by comparison with steels in the as-received state in the dislocation creep regime.By contrast, no significant effect of microstructural stability on creep behaviour was found in a regime of viscous creep.

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