On the AlN precipitation and grain refinement in the Al(N)-added medium C–Mn steels

Autor:	J. M. Kim, Joong Keun Park
Rok vydání:	2017
Předmět:	010302 applied physics Materials science Precipitation (chemistry) 0103 physical sciences Metallurgy Extraction (chemistry) Nucleation 02 engineering and technology 021001 nanoscience & nanotechnology 0210 nano-technology Condensed Matter Physics 01 natural sciences
Zdroj:	Philosophical Magazine Letters. 97:320-327
ISSN:	1362-3036 0950-0839
DOI:	10.1080/09500839.2017.1356479
Popis:	The precipitation of AlN particles and grain refinement in the Al(N)-added medium C–Mn steel have been studied using a Gleeble hot-deformation simulator and extraction replica TEM technique. No significant grain refinement occurs during either hot-rolling or hot-deformation/isothermal-holding, which is due to the absence of AlN precipitation; the lack of precipitation is caused by an unusually high-energy barrier for nucleation. Abrupt grain refinement occurs on reheating because of the copious precipitation of AlN during reheating. The copious precipitation of AlN during reheating is possible because thermally unstable Fe-rich sulphides act as precursors for AlN precipitation during reheating.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2a6595e2645f02e30ea53a92dfe9b863 https://doi.org/10.1080/09500839.2017.1356479 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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