Effect of Al and Ti on High-Temperature Oxidation Behavior of CoCrFeNi-Based High-Entropy Alloys

Azmi Erdogan; Kadir Mert Doleker; Zeytin, Sakin

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dc.contributor.authors	Erdogan, A; Doleker, KM; Zeytin, S;
dc.date.accessioned	2020-10-16T11:05:22Z
dc.date.available	2020-10-16T11:05:22Z
dc.date.issued	2019
dc.identifier.citation	Erdogan, A; Doleker, KM; Zeytin, S; (2019). Effect of Al and Ti on High-Temperature Oxidation Behavior of CoCrFeNi-Based High-Entropy Alloys. JOM, 71, 3510-3499
dc.identifier.issn	1047-4838
dc.identifier.uri	https://doi.org/10.1007/s11837-019-03679-2
dc.identifier.uri	https://hdl.handle.net/20.500.12619/69679
dc.description.abstract	CoCrFeNiAlxTiy high-entropy alloys were produced by the induction melting method and their oxidation behavior investigated when exposed to 1000 degrees C for different durations. One or more body-centered cubic phases were found in all alloys, except CoCrFeNiTi0.5. In the CoCrFeNiTi0.5 alloy, two different face-centered cubic phases and one tetragonal sigma phase were detected. Scanning electron microscopy elemental analysis showed that all the alloys exhibited homogeneous microstructure. Energy-dispersive x-ray spectroscopy analysis revealed that Cr and Fe elements were enriched in one phase and Al-Ni-Ti elements in another. The presence of Ti negatively affected the oxidation behavior. According to the oxidation test results, dominant Al2O3 formation was observed in the CoCrFeNiAl0.5 and CoCrFeNiAlTi0.5 alloys. As a result, these two alloys exhibited the best performance among the five high-entropy alloys in terms of mass gain and oxide thickness.
dc.language	English
dc.publisher	SPRINGER
dc.subject	Mining & Mineral Processing
dc.title	Effect of Al and Ti on High-Temperature Oxidation Behavior of CoCrFeNi-Based High-Entropy Alloys
dc.type	Article
dc.identifier.volume	71
dc.identifier.startpage	3499
dc.identifier.endpage	3510
dc.contributor.department	Sakarya Üniversitesi/Mühendislik Fakültesi/Metalurji Ve Malzeme Mühendisliği Bölümü
dc.contributor.saüauthor	Zeytin, Sakin
dc.relation.journal	JOM
dc.identifier.wos	WOS:000487659800021
dc.identifier.doi	10.1007/s11837-019-03679-2
dc.identifier.eissn	1543-1851
dc.contributor.author	Azmi Erdogan
dc.contributor.author	Kadir Mert Doleker
dc.contributor.author	Zeytin, Sakin