Preparation, characterization, tribological and lubrication performances of Eu doped CaWO4 nanoparticle as anti-wear additive in water-soluble fluid for steel strip during hot rolling
Preparation, characterization, tribological and lubrication performances of Eu doped CaWO4 nanoparticle as anti-wear additive in water-soluble fluid for steel strip during hot rolling
复制标题
Eu 掺杂 CaWO4 纳米颗粒作为热轧带钢水溶性抗磨添加剂的制备、表征及摩擦学和润滑性能
DOI：
10.1016/j.apsusc.2020.148090
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发表时间：
2021-02-15
影响因子：
6.7
通讯作者：
Zhang, Baosen
中科院分区：
文献类型：
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作者：
Xiong, Sang;Liang, Dong;Zhang, Baosen
采用扫描电镜（SEM）、透射电镜（TEM）、x射线衍射（XRD）和拉曼光谱（Raman）分析了柠檬酸在酸性溶液（pH = 1）和碱性溶液（pH = 10）中合成的铕掺杂CaWO4 （CaWO4:Eu3+）纳米颗粒。研究了纳米cawo4:Eu3+作为抗磨添加剂在水基轧制液中的摩擦学和热轧润滑性能。结果表明，CaWO4:Eu3+-pH = 10在水基轧制液中具有优异的承载性能、耐磨性和减摩擦性能，其中以0.5 wt%的浓度为最佳。WSD值从0.62降低到0.39 mm， COF值从0.092降低到0.070，这是由于在磨损表面形成的摩擦膜（约30 nm）由Fe2O3、CaO、WO3和Eu2O组成，避免了热轧过程中与金属的直接接触，从而降低了摩擦系数和氧化垢。
Citric acid-synthesized Eu-doped CaWO4 (CaWO4:Eu3+) nanoparticles in acidity (pH = 1) and alkalinity solutions (pH = 10) were analyzed by SEM, TEM, XRD, and Raman. The tribological and hot rolling lubrication properties of nano-CaWO4:Eu3+ as anti-wear additives in water-based rolling fluid were investigated. Results showed that CaWO4:Eu3+-pH = 10 has excellent load-carrying capacity, wear-resistance and friction-reducing properties in water-based rolling fluid, particularly in the best concentration was 0.5 wt%. The WSD value is decreased from 0.62 to 0.39 mm and the COF value is reduced from 0.092 to 0.070, which attributes to the formed tribofilm (similar to 30 nm) on the worn surface is composed of Fe2O3, CaO, WO3 and Eu2O to avoid direct contact with the metals during hot rolling, thus reducing the friction coefficient and the oxide scale.