• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of engineering materials and technology >Properties and Corrosion Behavior of Chromium and Vanadium Carbide Composite Coatings Produced on Ductile Cast Iron by Thermoreactive Diffusion Technique
【24h】

Properties and Corrosion Behavior of Chromium and Vanadium Carbide Composite Coatings Produced on Ductile Cast Iron by Thermoreactive Diffusion Technique

机译：热反应扩散技术在球墨铸铁上产生的铬和碳化钒复合涂层的性质和腐蚀行为

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Ductile iron (DI) owes many of its attractive mechanical properties to the graphite nodules in its structure. However, since galvanic coupling can occur between the graphite nodules and the matrix in aggressive environments, these nodules can, at the same time, reduce its corrosion resistance. In this study, composite carbide coatings were grown on the surface of GGG-80 using the thermoreactive diffusion (TRD) process. The process was carried out at 900, 1000, and 1100 °C for 1 h using nanosized Fe-V and Fe-Cr powders. The coatings were characterized by X-ray diffractometry (XRD), two-dimensional profilometry, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and microhard-ness tests. The corrosion behavior of the coatings were evaluated in three different solutions (3.5 wt% NaCl, 5 wt% H_2SO_4, and 5 wt% HNO_3) using electrochemical open-circuit potential (OCP) and potentiodynamic polarization measurements. Microstructures and hardness tests showed that the nodular graphite in the surface was dissolved at the TRD process temperatures and that a coating of 12-36 μm thickness and 2461-3200 HV_(0.05) hardness was obtained. The corrosion resistance of the composite coating was up to 10, 33.5, and 75 times higher than the uncoated GGG-80 in NaCl, H_2SO_4, and HNO_3, respectively. The improvement in corrosion resistance was a direct result of the formation of complex carbides and the elimination of graphite nodules in the surface of the alloy.
机译：韧性熨斗（DI）在其结构中造成其石墨结节的许多有吸引力的机械性能。然而，由于在腐蚀性环境中的石墨结节和基质之间可能发生电镀耦合，因此这些结节同时可以降低其耐腐蚀性。在该研究中，使用热反应性扩散（TRD）方法在GGG-80的表面上生长复合碳化物涂层。使用纳米型Fe-V和Fe-Cr粉末在900,000和1100℃下进行，在900,000和1100℃下进行1小时。涂层的特征在于X射线衍射法（XRD），二维轮廓测定法，扫描电子显微镜（SEM），能量分散X射线光谱（EDS）和微牙齿测试。使用电化学开路电位（OCP）和电位偏振测量，在三种不同的溶液（3.5wt％NaCl，5wt％H12SO_4和5wt％HNO_4和5wt％HNO_3）中评价涂层的腐蚀行为。微观结构和硬度试验表明，表面溶解在TRD处理温度下的结节石墨，得到12-36μm厚度和2461-3200HV_（0.05）硬度的涂层。复合涂层的耐腐蚀性高达10,33.5，分别高于NaCl，H_2SO_4和HNO_3的未涂覆的GGG-80。耐腐蚀性的改善是形成复杂碳化物的直接结果，并在合金表面中消除石墨结节。

著录项

  • 来源
    《Journal of engineering materials and technology》 |2020年第4期|041008.1-041008.12|共12页
  • 作者

    Ali Guenen; Muege Kalkandelen; Ismail Hakki Karahan; Buelent Kurt; Erdogan Kanca; Mustafa Sabri Goek; Mustafa Serdar Karakas;

  • 作者单位

    Department of Metallurgical and Materials Engineering Faculty of Engineering and Natural Sciences Iskenderun Technical University 31200 Hatay Turkey;

    Department of Metallurgical and Materials Engineering Faculty of Engineering and Natural Sciences Iskenderun Technical University 31200 Hatay Turkey;

    Department of Physics Faculty of Science and Arts Mustafa Kemal University 31200 Hatay Turkey;

    Department of Materials Engineering Faculty of Engineering and Architecture Nevsehir Haci Bektas Veli University 50000 Nevsehir Turkey;

    Department of Mechanical Engineering Faculty of Engineering and Natural Sciences Iskenderun Technical University 31200 Hatay Turkey;

    Department of Mechanical Engineering Faculty of Engineering and Natural Sciences Bartin University 74000 Bartin Turkey;

    Department of Metallurgical and Materials Engineering Faculty of Engineering and Natural Sciences Konya Technical University 42130 Konya Turkey;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ductile iron; thermoreactive diffusion; composite coating; corrosion; materials processing; mechanical behavior;

    机译：韧性熨斗;热反应扩散;复合涂层;腐蚀;材料加工;机械行为;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号