20.500.12556/RUL-155114 Coupled role of alloying and manufacturing on deep cryogenic treatment performance on high-alloyed ferrous alloys This study focuses on influence of alloying content and type of manufacturing on the effectiveness of deep cryogenic treatment (DCT) on properties of selected high-alloyed ferrous alloys (HAFA): EN HS6-5-2, EN HS6-5-2-5, EN HS6-5-3 and EN HS12-1-4. In order to evaluate the dependency of DCT performance on chemical composition and manufacturing type, the microstructure, hardness, impact and fracture toughness and fatigue properties were analyzed. Additionally, the fatigue data was evaluated using an adapted strain-life model in order to understand the unique effects of DCT with selected factors and provide a model for estimating the fatigue limit of DCT HAFA. The study indicates that DCT affects carbide precipitation, size and morphology of nanocarbides, average distance between carbides and nanocarbides, as well as the base matrix (martensitic laths). The induced microstructural changes cause an overall positive change of mechanical properties in selected HAFA, which correlates well with individual alloying and manufacturing differences. Overall, DCT has greater effect on wrought HAFA than powder metallurgy manufactured HAFA, at which high content of W and Co generally degenerates the DCT induced microstructure modifications. deep cryogenic treatment alloying content manufacturing type ferrous alloy carbides precipitation mechanical properties globoko podhlajevanje vsebnost legur tip proizvodnje železna zlitina precipitacija karbidov mehanske lastnosti true false true Angleški jezik Slovenski jezik Članek v reviji 2024-03-20 15:09:56 2024-03-20 15:09:57 2024-03-21 04:07:10 0000-00-00 00:00:00 2022 0 0 Str. 3184-3197 Vol. 18 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 669 2238-7854 10.1016/j.jmrt.2022.04.025 104363523 1-s2.0-S2238785422005257-main.pdf 1-s2.0-S2238785422005257-main.pdf 1 72FA5A1FE34EBA94A6FAAA3866F93BF8 954e160846f5da96ab9d5395730d511362c9fd763d90e25907680c381987bfca 99b23b71-e6c4-11ee-8d8c-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=181897 https://www.sciencedirect.com/science/article/pii/S2238785422005257 0 889047fd-e6c3-11ee-8d8c-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=181896 Fakulteta za strojništvo Zdravstvena fakulteta 0 0 0