Al-Co-Cr-Fe-Ni high-entropy coatings produced by non-vacuum electron beam cladding: Understanding the effect of Al by in-situ synchrotron X-ray diffraction Full article
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Applied Surface Science
ISSN: 0169-4332 |
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| Output data | Year: 2024, Volume: 665, Article number : 160367, Pages count : DOI: 10.1016/j.apsusc.2024.160367 | ||||||
| Tags | NON-VACUUM ELECTRON BEAM CLADDING, HIGH-ENTROPY ALLOY, COATING, SYNCHROTRON X-RAY DIFFRACTION, WEAR RESISTANCE, HARDNESS | ||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Министерство науки и высшего образования Российской Федерации | FWGG-2021-0004 |
Abstract:
This study investigates the structure and properties of Al-Co-Cr-Fe-Ni high-entropy alloy (HEA) based coatings on steel substrates produced by non-vacuum electron beam cladding. Powder mixtures with Al molar ratios of 0.5, 1, and 1.5 were used for cladding, resulting in coatings with fcc, bcc + fcc, and bcc structures, respectively. The Fe content, which entered the coating from the substrate during cladding, increased from 9.9 up to 48.1 at. % with the decrease of the Al molar fraction from 1.5 to 0.5. In-situ synchrotron X-ray diffraction analysis showed that this effect can be attributed to the higher solidus temperatures of the compositions with higher Al content. Electron backscatter diffraction showed that differences in grain morphology and crystallographic texture were related to the crystallization temperatures in different zones of the coatings. The bcc coating with an Al molar ratio of 1.5 demonstrated superior hardness and wear resistance. Fcc coating, which received more Fe from the substrate, had lower hardness and was prone to plastic flow. However, the specific wear rate of the fcc coating was close to that of the bcc + fcc one due to the hardening of the fcc phase during sliding wear
Cite:
Ogneva T.S.
, Emurlaev K.I.
, Kuper K.E.
, Malyutina Yu N.
, Domarov E.V.
, Chakin I.K.
, Skorokhod K.A.
, Ruktuev A.A.
, Nasennik I.E.
, Bataev I.A.
Al-Co-Cr-Fe-Ni high-entropy coatings produced by non-vacuum electron beam cladding: Understanding the effect of Al by in-situ synchrotron X-ray diffraction
Applied Surface Science. 2024. V.665. 160367 . DOI: 10.1016/j.apsusc.2024.160367 WOS Scopus РИНЦ OpenAlex
Al-Co-Cr-Fe-Ni high-entropy coatings produced by non-vacuum electron beam cladding: Understanding the effect of Al by in-situ synchrotron X-ray diffraction
Applied Surface Science. 2024. V.665. 160367 . DOI: 10.1016/j.apsusc.2024.160367 WOS Scopus РИНЦ OpenAlex
Dates:
| Submitted: | Mar 7, 2024 |
| Accepted: | May 21, 2024 |
| Published print: | Aug 31, 2024 |
Identifiers:
| Web of science: | WOS:001245181600001 |
| Scopus: | 2-s2.0-85193944699 |
| Elibrary: | 68031165 |
| OpenAlex: | W4398201425 |