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Title: Segregation and migration of species in the CrCoFeNi high entropy alloy
Authors: Middleburgh, SC
King, DJM
Lumpkin, GR
Cortie, MB
Edwards, L
Keywords: Alloys
Point defects
Issue Date: 25-Jun-2014
Publisher: Elsevier
Citation: Middleburgh, S. C., King, D. M., Lumpkin, G. R., Cortie, M., & Edwards, L. (2014). Segregation and migration of species in the CrCoFeNi high entropy alloy. Journal of Alloys and Compounds, 599(0), 179-182. doi:10.1016/j.jallcom.2014.01.135
Abstract: The formation and migration of intrinsic defects in the CrCoFeNi high entropy alloy has been investigated using ab-initio modeling. The ease of vacancy formation was found to vary depending on the element: vacancies formed by the removal of Fe, Ni and Co are positive while Cr has a negative vacancy formation energy and will precipitate out of the CrCoFeNi alloy. This mechanism may allow the formation of a corrosion passivating oxide layer, analogous to Cr behaviour in stainless steels. The migration and behaviour of intrinsic interstitial defects has also been investigated. © Elsevier B.V.
Gov't Doc #: 7224
ISSN: 0925-8388
Appears in Collections:Journal Articles

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