摘要
采用反应氮弧熔覆技术,利用TXⅡ500氩弧焊机,以纯度99.999%的氮气作为保护气体和反应气体,在预涂钛粉和石墨粉的Q235B试件表面上制备了TiCN颗粒增强复合涂层。对熔覆电流分别在200,220,240A下形成的熔覆涂层进行了研究。利用扫描电镜、X射线衍射仪和往复式摩擦磨损试验机对复合涂层的显微组织、相成分和耐磨性进行了测试。结果表明:TiCN涂层与基体呈冶金结合,熔覆电流为200A时涂层的组织致密、连续、均匀,涂层的耐磨性能达到最优。
Reactive nitrogen arc cladding technology was carried out using TX Ⅱ 500 argon arc cladding machine in nitrogen gas atmosphere, and TiCN based composite coating was preparated on the Q235B specimen surface which is precoated titanium powder and graphite powder. The molten coating was studied under the cladding current respectively in 200 A, 220 A and 240 A. The microstructure, phase composition and wear resistance were investigated by scanning electron microscope（SEM）, X-ray diffraction （XRD） and reciprocating friction testing machine. The results showed that the composite coating was metallurgically bonded to the substrate. Under the condition of cladding current 200 A and TiCN coating metallurgy combined with matrix, the organisation of coating was dense and uniformity and the wear-re- sisting performance of the coating reached the optimal.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2014年第6期110-113,共4页
Journal of Hebei Agricultural University
基金
河北省杰出青年科学基金(E2011204036)
作者简介
耿振（1988-），男，河北石家庄人，在读硕士生．研究方向：表面工程与维修
通讯作者：郝建军（1972-），男，河北省张家口人，博士．研究方向：材料加工工程．
