Effects of Al on the Phase Volume Fractions and Wear Properties in the AlxCoCrFeMoNi High Entropy Alloy System

Hakan Gasan; Ersu Lökçü; Akin Ozcan; Osman Nuri Celik; Ibrahim Celikyurek; Mustafa Ulutan; Yavuz Kurtulus

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자료유형: 학술저널

저자정보: Hakan Gasan (Eskisehir Osmangazi University) Ersu Lökçü (Eskisehir Osmangazi University) Akin Ozcan (Eskisehir Osmangazi University) Osman Nuri Celik (Eskisehir Osmangazi University) Ibrahim Celikyurek (Eskisehir Osmangazi University) Mustafa Ulutan (Eskisehir Osmangazi University) Yavuz Kurtulus (Eskisehir Osmangazi University)

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.26 No.3

발행연도: 2020.1

수록면: 310 - 320 (11page)

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A detailed investigation was carried out to study the effect of Al on the phase volume fractions and wear properties in theAlxCoCrFeMoNihigh entropy alloy (HEA) system. The analysis of phases was studied by X-ray diffraction for further Rietveldrefinement was performed to determine the volume fraction of phases. In order to accomplish experimental studies, thevolume fraction of phases has been analyzed by CALPHAD based simulations. The wear behavior of HEAs were studiedunder dry sliding conditions using a ball-on-disc geometry. The alloy system includes FCC, σ, B2 and BCC phases andexhibits a broad range of phase transformations with varying Al content. The wear behavior of HEAs, in the present work, iscorrelated with their volume fraction of phases and hardnesses. The minimum wear rate, 3.04 × 10−5 mm3/(Nm), is observedin A1.5CoCrFeMoNialloy containing relatively hard σ, B2 and BCC phases, which has a maximum hardness 829.8 HV.

#High entropy alloys · Wear · Rietveld analysis · CALPHAD

참고문헌 (44)

참고문헌 신청

J. W. Yeh / 2004 / Nanostructured high-entropy alloys with multiple principal elements : novel alloy design concepts and outcomes / Adv. Eng. Mater 6:299~303

M. R. Chen / 2006 / Effect of vanadium addition on the microstructure, hardness, and wear resistance of Al0.5CoCrCuFeNi high-entropy alloy / Metall. Mater. Trans. A 37:1363~1369

Y. Zhang / 2014 / Microstructures and properties of high-entropy alloys / Prog. Mater. Sci 61:1~93

Y. Liu / 2016 / Tribological properties of AlCrCuFeNi2high-entropy alloy in different conditions / Metall. Mater. Trans. A 47:3312~3321

P. J. Craievich / 1994 / Local stability of nonequilibrium phases / Phys. Rev. Lett 72:3076~3079

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