• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Corrosion wear behavior of Al-bronzes in 3.5% NaCl solution
【24h】

Corrosion wear behavior of Al-bronzes in 3.5% NaCl solution

机译：铝青铜在3.5％NaCl溶液中的腐蚀磨损行为

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

The corrosion wear behaviors of two aluminum bronzes, Cu-14Al-X and QAl9-4, in 3.5% NaCl solution were investigated on a pin-on-block reciprocating tester. It was found that the wear loss of the bronzes in 3.5% NaCl solution was lower than that in water and in air, i.e., it exhibited “negative” synergy between corrosion and wear. To understand the corrosion wear mechanism of the bronzes, the corrosion rate and polarization curves of Cu-14Al-X and QAl9-4 in 3.5% NaCl solution were determined. The worn surfaces of the specimens were examined, and the wear tracks were measured using scanning electron microscopy. The corrosion patinas formed on the specimen surfaces were studied with x-ray photoelectron spectroscopy and electron probe microanalysis. The corrosive solution was shown to play an important role in cooling of the specimen surfaces during the wear, thus preventing the specimen’s surface hardness from being reducing, induced by frictional heat during the sliding wear. On the other hand, the bronzes suffered from dealloying corrosion; a noble copper subsurface and patina formed on the specimen surface in the corrosive solution, which had a passive function for further corrosion. The noble copper subsurface experienced strain hardening during the corrosion wear, resulting in an increase of the surface hardness and thus an increase in wear resistance.
机译：在销钉往复试验机上研究了两种铝青铜Cu-14Al-X和QAl9-4在3.5％NaCl溶液中的腐蚀磨损行为。发现在3.5％NaCl溶液中，青铜的磨损损失低于在水和空气中的青铜，即在腐蚀和磨损之间表现出“负”协同作用。为了了解青铜的腐蚀磨损机理，确定了Cu-14Al-X和QAl9-4在3.5％NaCl溶液中的腐蚀速率和极化曲线。检查样品的磨损表面，并使用扫描电子显微镜测量磨损轨迹。用X射线光电子能谱和电子探针显微分析研究了在试样表面形成的腐蚀铜锈。结果表明，腐蚀液在磨损过程中对试样表面的冷却起着重要作用，从而防止了滑动磨损过程中摩擦热引起的试样表面硬度的降低。另一方面，青铜器遭受了脱合金腐蚀。在腐蚀溶液中，在试样表面形成了一层贵金属铜表面和铜绿，它们具有进一步腐蚀的被动功能。贵金属铜次表面在腐蚀磨损期间经历了应变硬化，从而导致表面硬度的增加，从而提高了耐磨性。

著录项

  • 来源
  • 作者

    W. S. Li; Z. P. Wang; Y. Lu; L. H. Yuan;

  • 作者单位

    State Key Lab of Advanced Non-Ferrous Materials Lanzhou University of Technology 730050 Lanzhou Gansu P.R. China;

    State Key Lab of Advanced Non-Ferrous Materials Lanzhou University of Technology 730050 Lanzhou Gansu P.R. China;

    State Key Lab of Advanced Non-Ferrous Materials Lanzhou University of Technology 730050 Lanzhou Gansu P.R. China;

    State Key Lab of Advanced Non-Ferrous Materials Lanzhou University of Technology 730050 Lanzhou Gansu P.R. China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    aluminum bronze; corrosion; corrosion wear; hardness; patina; strain hardening;

    机译：铝青铜;腐蚀;腐蚀磨损;硬度;铜锈;应变硬化;

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