不同粒度锌粉对热渗锌涂层的性能影响研究  

Research on Effect of Different Particle Size of Zinc Powder on the Properties of Thermal Diffusion Zinc Coating

作　　者：张建文 张巍 方小晴 黄斌 龙兴苗 王小雨 ZHANG Jian-wen;ZHANG Wei;FANG Xiao-qing;HUANG Bin;LONG Xing-miao;WANG Xiao-yu(Three Gorges Dongshan Energy Investment Co.,Ltd.,Dongshan 363400;China Power Construction Wuhan Iron Tower Co.,Ltd.,Wuhan 4300ll;Aviation Key Laboratory of Science and Technology on Structural Corrosion Prevention and Control,China Special Vehical Research Institute,Jingmen 448035)

机构地区：[1]三峡东山能源投资有限公司,东山363400 [2]中电建武汉铁塔有限公司,武汉430011 [3]中国特种飞行器研究所结构腐蚀防护与控制航空科技重点实验室,荆门448035

出　　处：《环境技术》2024年第9期181-186,207,共7页Environmental Technology

摘　　要：目的 研究SJ-01、SJ-02、SJ-03三种不同渗剂中锌粉粒度对热渗锌涂层性能影响。方法 首先,采用X射线衍射仪、扫描电子显微镜、能谱仪对SJ-01、SJ-02、SJ-03三种渗剂的晶体结构、微观形貌及元素组成进行分析;随后,通过热渗锌实验,对三种渗剂形成渗层的厚度、硬度、微观形貌、结合力、耐蚀性进行检测,以评价渗剂中锌粉粒度对各项指标造成的影响,并筛选出最佳的热渗锌渗剂。结果 相较于SJ-02、SJ-03两种渗剂,SJ-01渗剂中锌粉粒径较小,且分布均匀,使其在热渗锌扩散过程中得到更加均匀、平整、厚度更大的渗层结构,进而获得更加优异的显微硬度(417.1 HV)、基材结合力(24.07 MPa)、耐腐蚀能力。结论 含有较小粒径且均匀分布锌粉的SJ-01渗剂制备的热渗锌涂层综合性能最优。Objective To study the effect of zinc powder particle size on the performance of thermal diffusion zinc coating in three different penetrating agents,namely SJ-01,SJ-02 and SJ-03.Methods Firstly,the crystal structure,microscopic morphology and elemental composition of the three types of penetrants,SJ-01,SJ-02 and SJ-03,were analysed by X-ray diffractometer,scanning electron microscope and energy spectrometer;Subsequently,the thickness,hardness,microscopic morphology,bonding force,and corrosion resistance of the infiltration layer formed by the three infiltrating agents were examined through thermal zinc infiltration experiments,in order to evaluate the influence of the particle size of the zinc powder in the infiltrating agents on the various indexes,and to screen out the optimal thermal zinc infiltrating agents.Results Compared with SJ-02 and SJ-03,the zinc powder in SJ-01 is smaller in particle size and uniformly distributed,which results in a more homogeneous,flat,and thicker penetration layer structure during the diffusion process of thermal zinc penetration,and thus obtains a more excellent microhardness(417.1 HV),bonding force of the substrate(24.07 MPa),and corrosion resistance.Conclusion The comprehensive performance of the thermal diffusion zinc coating prepared by SJ-o1 penetrant with small particle size and uniform distribution of zinc powder is optimal.

关 键 词：热渗锌 锌粉 耐蚀性 

分 类 号：TG174.4[金属学及工艺—金属表面处理]