高过滤精度316L不锈钢纤维多孔材料的制备及耐腐蚀性能研究  

Research on Preparation and Corrosion Resistance of High Filtration Accuracy 316L Stainless Steel Fiber Porous Material

作　　者：李新星[1,2,3] 王兴 王红侠 张召森[1] 卜康 胡胜强 LI Xinxing;WANG Xing;WANG Hongxia;ZHANG Zhaosen;BU Kang;HU Shengqiang(Department of Materials Science and Engineering,Suqian University,Suqian 223800,China;Aidman Metal Materials(Jiangyin)Limited Company,Jiangyin 214499,China;Institute of Industrial Technology Research,Suqian University,Suqian 223814,China)

机构地区：[1]宿迁学院材料科学与工程系,江苏宿迁223800 [2]艾德曼金属材料(江阴)有限公司,江苏江阴214499 [3]宿迁学院产业技术研究院,江苏宿迁223814

出　　处：《热加工工艺》2022年第10期34-38,44,共6页Hot Working Technology

基　　金：江苏省高端结构材料重点实验室开放基金资助项目(HSM1907);宿迁市科技计划项目(K202006);江苏省青蓝工程资助项目(20200415);宿迁学院新型复合材料研究创新团队项目(2021td01)。

摘　　要：以不同直径的316L不锈钢纤维作为原材料,采用三段牵伸结合气流成网技术,形成不锈钢纤维毡,然后经复合、烧结、压延,制备出均匀性良好的不锈钢纤维多孔材料,其孔隙率为81.1%,过滤精度为5.75μm,均优于市场同类材料。采用腐蚀失重法和电化学极化法分析316L不锈钢纤维多孔材料在硝酸氢氟酸水溶液中的腐蚀行为,并通过扫描电镜(SEM)观察腐蚀试样的形貌。结果表明,烧结过程中采用氮气作为保护气体,在钼炉膛中进行烧结所得的不锈钢纤维多孔材料具有更优异的耐腐蚀性。Using 316L stainless steel fibers with different diameters as raw materials, the stainless steel fiber mat was obtained by three-stage drafting combined with air flow net forming technology. Then, after compositing, sintering and calendaring, a stainless steel fiber porous material of good uniformity was fabricated, with porosity of 81.1% and filtration precision of 5.75 μm, which generated more excellent filtration performance than similar materials in the market. The corrosion behavior of 316L stainless steel fiber porous material in hydrofluoric acid nitrate solution was analyzed by corrosion weight loss method and electrochemical polarization method, and the morphology of the corroded sample was observed by scanning electron microscope(SEM). The results show that when using nitrogen as the protective gas and sintering in molybdenum furnace, the porous stainless steel fiber material presents better corrosion resistance.

关 键 词：不锈钢纤维 气流成网 烧结 保护气体 炉膛材质 

分 类 号：TG174.3[金属学及工艺—金属表面处理]