| 脉冲单电源铬镍共渗层耐酸腐蚀性研究 |
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| 引用本文： | 陈选楠,高原,李冰,黄学锋.脉冲单电源铬镍共渗层耐酸腐蚀性研究[J].材料导报,2011,25(6):90-92,111. |
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| 作者姓名： | 陈选楠 高原 李冰 黄学锋 |
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| 作者单位： | 桂林电子科技大学材料科学与工程学院; |
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| 基金项目： | 国家自然科学基金(50764002); 广西区基金重点项目(2010GXNSFD013008); 信息材料广西重点实验室主任研究项目(桂科能0710908-06-Z); 大学生创新项目(081059517) |
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| 摘 要： | 采用脉冲单电源等离子渗金属技术,在Q195钢表面进行铬镍共渗工艺。利用X射线衍射仪、扫描电子显微镜(SEM)及能谱仪(EDS)分析了铬镍共渗层的表面相组成、表面微观形貌和表面成分。采用电化学测量仪测定铬镍共渗层分别在1mol/L H2SO4、1mol/L HNO3溶液中的极化曲线,研究其腐蚀形貌,并与未处理的Q195钢试样进行对比分析。结果表明,铬镍共渗层的主要相成分为Fe-Cr-Ni固溶体;铬镍共渗层的表面呈上凸的胞状组织,排列致密;表面成分的相对含量为Cr 16.14%、Ni 48.16%、Fe 35.7%(质量分数)。在HNO3溶液中,未处理的Q195钢试样表面为严重的面腐蚀,铬镍共渗层表面几乎未被腐蚀,后者比前者的耐蚀性提高了658倍;在H2SO4溶液中,未处理的Q195钢试样表面为严重的点蚀,而铬镍共渗层表面状态良好,后者比前者的耐蚀性提高了90倍。铬镍共渗层耐硝酸腐蚀性能优于耐硫酸腐蚀性能。
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| 关 键 词： | 脉冲 铬镍共渗 耐腐蚀 等离子 |
Research on Acid-resistance of Plasma Cr-Ni Surface Alloying Layer Formed by Single Pulse Power Supply |
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| CHEN Xuannan,GAO Yuan,LI Bing,HUANG Xuefeng.Research on Acid-resistance of Plasma Cr-Ni Surface Alloying Layer Formed by Single Pulse Power Supply[J].Materials Review,2011,25(6):90-92,111. |
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| Authors: | CHEN Xuannan GAO Yuan LI Bing HUANG Xuefeng |
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| Affiliation: | CHEN Xuannan,GAO Yuan,LI Bing,HUANG Xuefeng (School of Materials Science and Engineering,Guilin University of Electronic Technology,Guilin 541004) |
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| Abstract: | Q195 steel was conducted by Cr-Ni surface alloying process using single pulse power supply.The surface phase composition,morphology and contents were analyzed by XRD,SEM and EDS.Polarization curves of Cr-Ni alloying layer in 1mol/L H2SO4 and 1mol/L HNO3 solution were measured by electrochemical measuring instrument.The corrosion morphology was studied and compared with untreated Q195 steel.Results show that,the surface phase component is Fe-Cr-Ni solid solution;the surface of alloying layer is shown as tigh... |
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| Keywords: | single pulse power supply Cr-Ni surface alloying process corrosion resistance plasma |
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