A novel strategy for promoting corrosion and wear resistance of Mg-Li alloys: Gradient eutectic high-entropy alloy coating induced by in-situ bidirectional diffusion
In this work, a novel surface strengthening strategy for Mg-Li alloys was proposed, called cold spraying assisted high-speed laser cladding. CuAl9 aluminum bronze coating was firstly deposited on Mg-Li alloy by cold spraying, and then CoCrFe0.5Ni1.5Mo0.1Nb0.68 eutectic high-entropy alloy (EHEA) coat...
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KeAi Communications Co., Ltd.
2025-05-01
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| Series: | Journal of Magnesium and Alloys |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956723002372 |
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| author | Xin Wen Xiufang Cui Yufei Liu Ye Zhang Haoliang Tian Simin Wan Lipeng Jiang Guo Jin |
| author_facet | Xin Wen Xiufang Cui Yufei Liu Ye Zhang Haoliang Tian Simin Wan Lipeng Jiang Guo Jin |
| author_sort | Xin Wen |
| collection | DOAJ |
| description | In this work, a novel surface strengthening strategy for Mg-Li alloys was proposed, called cold spraying assisted high-speed laser cladding. CuAl9 aluminum bronze coating was firstly deposited on Mg-Li alloy by cold spraying, and then CoCrFe0.5Ni1.5Mo0.1Nb0.68 eutectic high-entropy alloy (EHEA) coating was prepared on the CuAl9 coating utilizing high-speed laser cladding. A gradient coating consisted of in-situ transition region and EHEA layer formed by bidirectional diffusion. The in-situ transition region was composed of β-Li, Cu2Mg and Cu3Al2 phases. TEM analysis indicated that Cu2Mg and Cu3Al2 phases were well matched with the β-Li matrix phase. The EHEA coating had a nano-lamellar eutectic microstructure with relatively small lamellar-spacing (< 100 nm). Metallurgical bonding interfaces formed between the EHEA coating, transition region and Mg-Li substrate. The evolution mechanism of the coating was revealed from the perspectives of mixing enthalpy, atomic radius difference and laser energy distribution. In 3.5 wt.% NaCl solution, the corrosion potential of the EHEA coating (-24 mVSHE) was 1345 mVSHE higher than that of Mg-Li alloy (-1369 mVSHE), while the corrosion current density of the EHEA coating (3.13 × 10−7 A·cm−2) was almost three orders of magnitude lower than that of Mg-Li alloy (1.25 × 10−4 A·cm−2). The wear rate of Mg-Li alloy (1.11 × 10−3 mm3/N·m) was about 36 times higher than that of the EHEA coating (3.05 × 10−5 mm3/N·m). |
| format | Article |
| id | doaj-art-7a47a5ae61a84cc4aaa328e38f63d194 |
| institution | DOAJ |
| issn | 2213-9567 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj-art-7a47a5ae61a84cc4aaa328e38f63d1942025-08-20T03:21:51ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672025-05-011352267228210.1016/j.jma.2023.09.019A novel strategy for promoting corrosion and wear resistance of Mg-Li alloys: Gradient eutectic high-entropy alloy coating induced by in-situ bidirectional diffusionXin Wen0Xiufang Cui1Yufei Liu2Ye Zhang3Haoliang Tian4Simin Wan5Lipeng Jiang6Guo Jin7Institute of Surface/Interface Science and Technology, Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, 145, Nantong Ave, Nangang District, Harbin, Heilongjiang 150001, ChinaInstitute of Surface/Interface Science and Technology, Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, 145, Nantong Ave, Nangang District, Harbin, Heilongjiang 150001, China; Corresponding authors.Institute of Surface/Interface Science and Technology, Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, 145, Nantong Ave, Nangang District, Harbin, Heilongjiang 150001, ChinaInstitute of Surface/Interface Science and Technology, Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, 145, Nantong Ave, Nangang District, Harbin, Heilongjiang 150001, ChinaAviation Key Laboratory of Science and Technology on Advanced Corrosion and Protection for Aviation Material Beijing, Aero Engine Corporation of China Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaInstitute of Surface/Interface Science and Technology, Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, 145, Nantong Ave, Nangang District, Harbin, Heilongjiang 150001, ChinaInstitute of Surface/Interface Science and Technology, Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, 145, Nantong Ave, Nangang District, Harbin, Heilongjiang 150001, ChinaInstitute of Surface/Interface Science and Technology, Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, 145, Nantong Ave, Nangang District, Harbin, Heilongjiang 150001, China; Corresponding authors.In this work, a novel surface strengthening strategy for Mg-Li alloys was proposed, called cold spraying assisted high-speed laser cladding. CuAl9 aluminum bronze coating was firstly deposited on Mg-Li alloy by cold spraying, and then CoCrFe0.5Ni1.5Mo0.1Nb0.68 eutectic high-entropy alloy (EHEA) coating was prepared on the CuAl9 coating utilizing high-speed laser cladding. A gradient coating consisted of in-situ transition region and EHEA layer formed by bidirectional diffusion. The in-situ transition region was composed of β-Li, Cu2Mg and Cu3Al2 phases. TEM analysis indicated that Cu2Mg and Cu3Al2 phases were well matched with the β-Li matrix phase. The EHEA coating had a nano-lamellar eutectic microstructure with relatively small lamellar-spacing (< 100 nm). Metallurgical bonding interfaces formed between the EHEA coating, transition region and Mg-Li substrate. The evolution mechanism of the coating was revealed from the perspectives of mixing enthalpy, atomic radius difference and laser energy distribution. In 3.5 wt.% NaCl solution, the corrosion potential of the EHEA coating (-24 mVSHE) was 1345 mVSHE higher than that of Mg-Li alloy (-1369 mVSHE), while the corrosion current density of the EHEA coating (3.13 × 10−7 A·cm−2) was almost three orders of magnitude lower than that of Mg-Li alloy (1.25 × 10−4 A·cm−2). The wear rate of Mg-Li alloy (1.11 × 10−3 mm3/N·m) was about 36 times higher than that of the EHEA coating (3.05 × 10−5 mm3/N·m).http://www.sciencedirect.com/science/article/pii/S2213956723002372Cold sprayingHigh-speed laser claddingMg-Li alloysSurface strengtheningMicrostructure evolution |
| spellingShingle | Xin Wen Xiufang Cui Yufei Liu Ye Zhang Haoliang Tian Simin Wan Lipeng Jiang Guo Jin A novel strategy for promoting corrosion and wear resistance of Mg-Li alloys: Gradient eutectic high-entropy alloy coating induced by in-situ bidirectional diffusion Journal of Magnesium and Alloys Cold spraying High-speed laser cladding Mg-Li alloys Surface strengthening Microstructure evolution |
| title | A novel strategy for promoting corrosion and wear resistance of Mg-Li alloys: Gradient eutectic high-entropy alloy coating induced by in-situ bidirectional diffusion |
| title_full | A novel strategy for promoting corrosion and wear resistance of Mg-Li alloys: Gradient eutectic high-entropy alloy coating induced by in-situ bidirectional diffusion |
| title_fullStr | A novel strategy for promoting corrosion and wear resistance of Mg-Li alloys: Gradient eutectic high-entropy alloy coating induced by in-situ bidirectional diffusion |
| title_full_unstemmed | A novel strategy for promoting corrosion and wear resistance of Mg-Li alloys: Gradient eutectic high-entropy alloy coating induced by in-situ bidirectional diffusion |
| title_short | A novel strategy for promoting corrosion and wear resistance of Mg-Li alloys: Gradient eutectic high-entropy alloy coating induced by in-situ bidirectional diffusion |
| title_sort | novel strategy for promoting corrosion and wear resistance of mg li alloys gradient eutectic high entropy alloy coating induced by in situ bidirectional diffusion |
| topic | Cold spraying High-speed laser cladding Mg-Li alloys Surface strengthening Microstructure evolution |
| url | http://www.sciencedirect.com/science/article/pii/S2213956723002372 |
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