Influence of deep-sea hydrostatic pressure on the tribocorrosion behavior and mechanism of La2O3–TiB2–Ni coating

IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Materials Research and Technology-Jmr&t Pub Date : 2024-09-16 DOI:10.1016/j.jmrt.2024.09.138
Zhengyi Li , botai Su , Pengwei Ren , Lei Wen , Dongbai Sun
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Abstract

To understand the tribocorrosion mechanism of TiB2–Ni coating doped with La2O3 in the deep ocean, the wear and corrosion test of La2O3–TiB2–Ni under various hydrostatic pressures was conducted and discussed in 3.5 wt % NaCl solution. The results indicate that the tribocorrosion mechanism of the La2O3–TiB2–Ni coating transitions from abrasive wear with corrosion under 0.1 MPa to abrasive wear with corrosion and adhesive wear under high hydrostatic pressure. The La2O3–TiB2–Ni coating shows significant enhancements in wear resistance and anti-friction properties compared to the TiB2–Ni coating. As the hydrostatic pressure increases from 0.1 MPa to 30 MPa, the self-corrosion current density experiences an approximate increase of 43.6 μA/cm2.

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深海静水压力对 La2O3-TiB2-Ni 涂层摩擦腐蚀行为和机理的影响
为了解掺杂 La2O3 的 TiB2-Ni 涂层在深海中的摩擦腐蚀机理,在 3.5 wt % NaCl 溶液中对 La2O3-TiB2-Ni 涂层在不同静水压力下的磨损和腐蚀试验进行了研究和讨论。结果表明,La2O3-TiB2-Ni 涂层的摩擦腐蚀机理从 0.1 MPa 下的磨料磨损和腐蚀过渡到高静水压下的磨料磨损和腐蚀以及粘着磨损。与 TiB2-Ni 涂层相比,La2O3-TiB2-Ni 涂层的耐磨性和抗摩擦性能显著增强。当静水压力从 0.1 兆帕增加到 30 兆帕时,自腐蚀电流密度大约增加了 43.6 μA/cm2。
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来源期刊
Journal of Materials Research and Technology-Jmr&t
Journal of Materials Research and Technology-Jmr&t Materials Science-Metals and Alloys
CiteScore
8.80
自引率
9.40%
发文量
1877
审稿时长
35 days
期刊介绍: The Journal of Materials Research and Technology is a publication of ABM - Brazilian Metallurgical, Materials and Mining Association - and publishes four issues per year also with a free version online (www.jmrt.com.br). The journal provides an international medium for the publication of theoretical and experimental studies related to Metallurgy, Materials and Minerals research and technology. Appropriate submissions to the Journal of Materials Research and Technology should include scientific and/or engineering factors which affect processes and products in the Metallurgy, Materials and Mining areas.
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