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Showing 1 to 5 of 5 for “"Cementite precipitation"”.
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The thermal stability of bulk nanocrystalline steels
… previous work has shown that it decomposes into cementite and ferrite upon heating. This decomposition makes the material weak and brittle. The present work aims to develop new alloys that form nanocrystalline bainite, but which are able to survive heating. Previous work has shown that cementite …
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Design and modelling of ultra-high strength steels: nanoprecipitation and plasticity
… develop new ultra-high strength steels via nanoprecipitation control, which requires an understanding of the processing-microstructure-property relationship in medium carbon (0.5-0.6 wt.%) steels throughout tempering. Much of the work has been centred in understanding the role of silicon at the …
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Modelling of Microstructure Development in Silicon-containing Bainitic Free-machining Steels
… bainitic ferrite platelet and that for cementite precipitation within the ferrite platelet. Manganese, silicon and chromium are considered in the model. It is suggested that carbon and manganese favour lower bainite, whereas silicon promotes upper bainite. The effect of manganese …
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Structural evolution during the plastic deformation of nanostructured steel
… as an austenite stabilising element, it is the precipitation of carbides at relatively high testing temperatures that leads to a significant deterioration of properties. The temperature at which this occurs is much higher than in “conventional” nanostructured steels. In another scenario it has …
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ΕΠΙΔΡΑΣΗ ΤΗΣ ΠΑΡΟΥΣΙΑΣ ΤΟΥ ΧΑΛΚΟΥ ΣΤΟΝ ΠΕΡΛΙΤΙΚΟ ΚΑΙ ΜΠΑΙΝΙΤΙΚΟ ΜΕΤΑΣΧΗΜΑΤΙΣΜΟ ΤΩΝ ΧΑΛΥΒΩΝ
… THE PROEUTECTOID PHASES EITHER THE PROEUTECTOID CEMENTITE OR THE PROEUTECTOID FERRITE. WITHING PEARLITESTHE PRESENCE OF SMALL E-CU PRECIPITATES WAS FOUND WITHIN BOTH PEARLITIC FERRITE AND WITHIN PEARLITIC CEMENTITE E-CU PRECIPITATES WITHIN PEARLITIC CEMENTITE ARE OF THE INTERPHASE TYPE AND ARE …