【摘要】 采用相同的陶瓷骨料和热喷涂工艺,放热体系分别为Al/CuO和Al-TiO2-B2O3,制备热喷涂陶瓷涂层,通过对涂层表面形貌观察、物相分析、孔隙率,耐酸性(5%醋酸),耐盐性(3.5%NaCl)测试比较放热体系对陶瓷涂层耐蚀性能影响。结果表明:与基体AZ31B相比,采用Al-CuO为放热体系的陶瓷涂层耐酸性提高23.37倍,耐盐性提高16.33倍,Al-TiO2-B2O3放热体系陶瓷涂层的耐酸性提高12.91倍,耐盐性提高7.46倍,Al-CuO放热体系陶瓷涂层耐蚀性优于Al-TiO2-B2O3放热体系陶瓷涂层。更多还原

【Abstract】 Influence of exothermic chemical system on corrosion resistance of ceramic coatings prepared by reaction thermal-spraying method with the same aggregate and different exothermic chemical system Al/CuO and Al-TiO2-B2O3 was studied by comparing morphology,XRD,porosity,acid-resistance(5% acetic acid solution),salt-resistance(3.5% NaCl solution) respectively.The test results show that compared to matrix AZ31B,corrosion-resistance of ceramic coating with Al/CuO exothermic chemical system is improved by 23.37 and 16.33 times,whereas Al-TiO2-B2O3 exothermic chemical system just about 12.91 and 7.46 times.Ceramic coating with Al/CuO exothermic chemical system exhibits better corrosion-resistance than Al-TiO2-B2O3 exothermic chemical system.更多还原