Sb-SnO_(2)掺杂量对Al_(2)O_(3)-13%TiO_(2)复合陶瓷涂层抗结垢性能的影响  

Effect of Sb-SnO_(2)Doping Amount on Anti-scaling Performance of Al_(2)O_(3)-13%TiO_(2)Composite Ceramic Coating

作　　者：左凯 鞠少栋 张斌 洪秀玫 ZUO Kai;JU Shaodong;ZHANG Bin;HONG Xiumei(CNOOC EnerTech-Drilling&.Production Co.,Tianjin 300452,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《机械工程材料》2023年第9期101-105,共5页Materials For Mechanical Engineering

摘　　要：以Al_(2)O_(3)-13%TiO_(2)(AT13)和纳米掺锑SnO_(2)(Sb-SnO_(2))粉体为原料,采用等离子喷涂工艺在4145H合金钢基体表面制备了掺杂不同质量分数(0~16%)Sb-SnO_(2)的AT13复合陶瓷涂层,研究了复合陶瓷涂层的表面性能、微观形貌、显微硬度、结合强度以及在地层采出水中的抗结垢性能,并与电镀铬层和未处理4145H合金钢进行对比。结果表明:与电镀铬层和未处理4145H合金钢相比,复合陶瓷涂层的水接触角较大,表面能较低,随着Sb-SnO_(2)掺杂量的增加,水接触角基本呈先增大后减小的趋势,表面能先减小后增大;复合陶瓷涂层具有大量的孔隙;随着Sb-SnO_(2)掺杂量的增加,硬度整体呈降低趋势,但均高于4145H合金钢和电镀铬层,单位面积结垢质量先减小后增大;掺杂质量分数10%Sb-SnO_(2)的复合陶瓷涂层具有最大的水接触角、最小的表面能、最小的单位面积结垢质量,平均结合强度为25.7 MPa。With Al_(2)O_(3)-13%TiO_2(AT13)and nano antimony tin oxide(Sb-SnO_2)powders as raw materials,AT13 composite ceramic coatings doped with different mass fractions(0-16%)of Sb-SnO_(2)were prepared on surface of 4145H alloy steel substrate by plasma spraying process,and the surface performance,micromorphology,microhardness,bond strength,and anti-scaling properties in formation produced water of the composite ceramic coatings were investigated and compared with those of the chromium-electrodeposited layer and untreated 4145H alloy steel.The results show that the water contact angle of composite ceramic coating was larger than those of chromium-electrodeposited layer and untreated 4145H alloy steel,and the surface energy was lower.With increasing Sb-SnO_(2)doping amount,the water contact angle basically increased first and then decreased,and the surface energy decreased first and then increased.The composite ceramic coating had a large number of pores.With increasing Sb-SnO_(2)doping amount,the hardness had an overall decreasing trend,but was higher than those of 4145H alloy steel and chromium-electrodeposited layer.With increasing Sb-SnO_(2)doping amount,and the fouling mass per unit area decreased first and then increased.The composite ceramic coating doped with 10wt%Sb-SnO_(2)had the largest water contact angle,the smallest surface energy,and the minimum fouling mass per unit area;the average bond strength was 25.7 MPa.

关 键 词：纳米Sb-SnO_(2) Al_(2)O_(3)-13%TiO_(2)复合陶瓷涂层 抗结垢性能 

分 类 号：TG147[一般工业技术—材料科学与工程]