摘要
采用大气等离子喷涂技术成功在Fe普碳钢基材上制备了含有不同质量分数Al2O3-13%Ti O2颗粒的Fe基非晶复合涂层,其中Fe基非晶相成分为Fe71Cr5B4Si4Ni3Mo3W10(wt%),并对涂层的微观结构、显微硬度和耐蚀性能进行了研究。在Fe基非晶相与Al2O3-13%Ti O2陶瓷相界面观察到Fe、Ti、W、Al和O元素的互扩散现象,这种微区冶金结合减少了由于第二相的加入导致的涂层孔隙并增加了相间的结合强度。当加入的Al2O3-13%Ti O2质量分数≥16 wt%时,涂层的显微硬度升高≥20%;复合非晶涂层在10 wt%Na OH溶液中的耐腐蚀性能高于1Cr18Ni9Ti不锈钢。
An amorphous alloy composite coatings containing Fe71Cr5B4Si4Ni3Mo3W10 （wt%） and different mass fractions of AI2O3-13%TiO2 ceramic particles were successfully deposited onto plain carbon steel by atmospheric plasma spraying. The micro- structure, the micro-hardness and the corrosion resistance properties of the coatings were investigated. The mutual diffusion among Fe, Ti, W, AI and O elements was found at the interface of ceramic particles and Fe-based amorphous matrix. The micro-area metallurgical combination could reduce the porosity generated by the addition of the second phase and enhance the bonding strength between the two phases. The micro-hardness of the composite coating increased by 20% when the addition amount ofA12O3-13%TIO2 was more than 16 wt%. The corrosion resistance ability of the composite coatings was better than that of 1CrlSNi9Ti stainless steel inl0 wt% NaOH solution.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2014年第11期2576-2579,共4页
Rare Metal Materials and Engineering
基金
National Natural Science Foundation of China(51101017)
