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Influence of aluminum phosphate on the tribocorrosion performance of chemically bonded phosphate ceramic coatings
Materials and Corrosion ( IF 1.6 ) Pub Date : 2021-06-07 , DOI: 10.1002/maco.202112426 Jianyu Wang 1 , Da Bian 1, 2 , Yaxuan Liu 3 , Yongwu Zhao 1, 2 , Hao Tang 1
Materials and Corrosion ( IF 1.6 ) Pub Date : 2021-06-07 , DOI: 10.1002/maco.202112426 Jianyu Wang 1 , Da Bian 1, 2 , Yaxuan Liu 3 , Yongwu Zhao 1, 2 , Hao Tang 1
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In this study, chemically bonded phosphate ceramic coatings (CBPCCs) with different contents of aluminum phosphate (AP) are prepared on stainless steel (AISI 304L). Differential scanning calorimetry, X-ray diffraction, contact angle test, and a tribocorrosion experiment are carried out to clarify the role of AP in the tribocorrosion performance of CBPCCs. The results show that, with the increase in the AP content, the enthalpy of curing increases because of the greater formation of the bonding phase AlPO4. Both in static corrosion and in tribocorrosion, the corrosion current density of CBPCCs achieves the lowest value when the weight ratio of AP to polytetrafluoroethylene is about 0.78. Additionally, the influence mechanism of AP on tribocorrosion is clarified. AlPO4 from the reaction between AP and Al2O3 has excellent mechanical properties and can enhance the wear resistance of CBPCCs by reducing the mechanical wear and the increased wear due to corrosion. The alumina particles wrapped by AlPO4 can form a dense and smooth surface and change the direction of electrolyte propagation, which leads to the increase in the tribocorrosion resistance of CBPCCs.
中文翻译：
磷酸铝对化学结合磷酸盐陶瓷涂层摩擦腐蚀性能的影响
在这项研究中，在不锈钢 (AISI 304L) 上制备了具有不同磷酸铝 (AP) 含量的化学键合磷酸盐陶瓷涂层 (CBPCC)。进行差示扫描量热法、X 射线衍射、接触角测试和摩擦腐蚀实验以阐明 AP 在 CBPCC 摩擦腐蚀性能中的作用。结果表明，随着AP含量的增加，由于AlPO 4键合相的形成增多，固化焓增加。在静态腐蚀和摩擦腐蚀中，当AP与聚四氟乙烯的重量比约为0.78时，CBPCCs的腐蚀电流密度达到最低值。此外，阐明了AP对摩擦腐蚀的影响机制。氧化铝4AP与Al 2 O 3之间的反应具有优异的机械性能，可以通过减少机械磨损和腐蚀引起的磨损增加来提高CBPCC的耐磨性。AlPO 4包裹的氧化铝颗粒可以形成致密光滑的表面，改变电解液的传播方向，从而提高CBPCCs的耐摩擦腐蚀性能。
更新日期：2021-06-07
中文翻译：
磷酸铝对化学结合磷酸盐陶瓷涂层摩擦腐蚀性能的影响
在这项研究中，在不锈钢 (AISI 304L) 上制备了具有不同磷酸铝 (AP) 含量的化学键合磷酸盐陶瓷涂层 (CBPCC)。进行差示扫描量热法、X 射线衍射、接触角测试和摩擦腐蚀实验以阐明 AP 在 CBPCC 摩擦腐蚀性能中的作用。结果表明，随着AP含量的增加，由于AlPO 4键合相的形成增多，固化焓增加。在静态腐蚀和摩擦腐蚀中，当AP与聚四氟乙烯的重量比约为0.78时，CBPCCs的腐蚀电流密度达到最低值。此外，阐明了AP对摩擦腐蚀的影响机制。氧化铝4AP与Al 2 O 3之间的反应具有优异的机械性能，可以通过减少机械磨损和腐蚀引起的磨损增加来提高CBPCC的耐磨性。AlPO 4包裹的氧化铝颗粒可以形成致密光滑的表面，改变电解液的传播方向，从而提高CBPCCs的耐摩擦腐蚀性能。
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