Role of the alloying element in suppressing the negative effect of O in NiAl: Cr as an example

Autor:	Xue-Lan Hu, Tianmin Wang, Guang-Hong Lu, Ying Zhang
Rok vydání:	2009
Předmět:	Nial Materials science Mechanical Engineering Metallurgy Metals and Alloys Intermetallic chemistry.chemical_element Condensed Matter Physics Chromium chemistry Mechanics of Materials General Materials Science Ductility computer computer.programming_language
Zdroj:	Scripta Materialia. 61:189-192
ISSN:	1359-6462
DOI:	10.1016/j.scriptamat.2009.03.041
Popis:	We investigate the effect of Cr on the mechanical properties of NiAl with O by a first-principles method. Cr is shown to replace either Ni or Al depending on the surrounding environment. Based on the calculated “local elastic constants” and empirical criteria, we demonstrate that Cr can suppress the negative effect of O, and thus improve the “local ductility” of NiAl. Here, we exemplify a useful way to estimate effects of alloying elements on the mechanical properties of intermetallics from first principles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4344a15a81ff0b6aec48fc75c2070574 https://doi.org/10.1016/j.scriptamat.2009.03.041 Zobrazit plný text záznamu Full Text from ScienceDirect