Yıl: 2024 Cilt: 11 Sayı: 1 Sayfa Aralığı: 25 - 31 Metin Dili: İngilizce DOI: 10.17350/HJSE19030000328 İndeks Tarihi: 10-06-2024

Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting

Öz:
The CoCrFeNi high entropy alloy (HEA) with face-centered cubic (FCC) crystal struc- ture exhibits excellent ductility values even at cryogenic temperatures. However, since this HEA is relatively weak in strength, it may not meet the requirements of industrial applications in terms of strength-ductility trade-off. Therefore, the systematic addition of yttrium (Y) into CoCrFeNi HEA was investigated in the present study to increase the strength by solid solution and second phase strengthening. The HEAs were produced by vacuum arc melting, suction casting, and subsequent homogenization at 1150 °C for 24 h. The structural development of the HEAs was investigated by using the X-ray diffraction (XRD) technique which revealed the formation of a solid solution phase and CaCu5-type hexagonal structure (HS) second phase. The corresponding microstructure of the HEAs was examined under a scanning electron microscope (SEM) revealing the transformation of the microstructure from elongated grains to nearly equiaxed grains with the increase of Y content from 2 at. % to 4 at. %. The mechanical properties of the HEAs were investigated by using hardness and compression tests. The results exhibited a dramatic increase in the hardness from 143 (±2) HV to 335 (±7) HV and in the yield strength from 130 MPa to 1025 MPa with 4 at. % Y addition. Our study has revealed that the addition of rare earth Y element results in further development in the strength of the CoCrFeNi for potential engineering applications.
Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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APA Polat G, KOTAN H (2024). Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting. , 25 - 31. 10.17350/HJSE19030000328
Chicago Polat Gökhan,KOTAN HASAN Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting. (2024): 25 - 31. 10.17350/HJSE19030000328
MLA Polat Gökhan,KOTAN HASAN Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting. , 2024, ss.25 - 31. 10.17350/HJSE19030000328
AMA Polat G,KOTAN H Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting. . 2024; 25 - 31. 10.17350/HJSE19030000328
Vancouver Polat G,KOTAN H Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting. . 2024; 25 - 31. 10.17350/HJSE19030000328
IEEE Polat G,KOTAN H "Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting." , ss.25 - 31, 2024. 10.17350/HJSE19030000328
ISNAD Polat, Gökhan - KOTAN, HASAN. "Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting". (2024), 25-31. https://doi.org/10.17350/HJSE19030000328
APA Polat G, KOTAN H (2024). Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting. Hittite Journal of Science and Engineering, 11(1), 25 - 31. 10.17350/HJSE19030000328
Chicago Polat Gökhan,KOTAN HASAN Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting. Hittite Journal of Science and Engineering 11, no.1 (2024): 25 - 31. 10.17350/HJSE19030000328
MLA Polat Gökhan,KOTAN HASAN Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting. Hittite Journal of Science and Engineering, vol.11, no.1, 2024, ss.25 - 31. 10.17350/HJSE19030000328
AMA Polat G,KOTAN H Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting. Hittite Journal of Science and Engineering. 2024; 11(1): 25 - 31. 10.17350/HJSE19030000328
Vancouver Polat G,KOTAN H Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting. Hittite Journal of Science and Engineering. 2024; 11(1): 25 - 31. 10.17350/HJSE19030000328
IEEE Polat G,KOTAN H "Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting." Hittite Journal of Science and Engineering, 11, ss.25 - 31, 2024. 10.17350/HJSE19030000328
ISNAD Polat, Gökhan - KOTAN, HASAN. "Microstructural Evolution and Mechanical Properties of Y Added CoCrFeNi High-entropy Alloys Produced by Arc- melting". Hittite Journal of Science and Engineering 11/1 (2024), 25-31. https://doi.org/10.17350/HJSE19030000328