• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>DVS-Berichte >Comparison of two structure scales of plasma sprayed Al_2O_3-TiO_2 coatings on mechanical and tribological properties
【24h】

Comparison of two structure scales of plasma sprayed Al_2O_3-TiO_2 coatings on mechanical and tribological properties

机译：等离子喷涂Al_2O_3-TiO_2涂层的两种结构尺度在力学性能和摩擦学性能上的比较

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

Al_2O_3-13% wt TiO_2 thermal sprayed coatings exhibit good wear resistance under tribological conditions, thanks to their high toughness. Alumina/titania coatings with two different structures, and similar titania content, have been elaborated by atmospheric plasma spraying (APS). The aim was to compare the effect of the structure on hardness and wear resistance. As feedstocks were used Al_2O_3-13 wt% TiO_2 powders with two different structures: micrometer sized ones, with two size distributions (5 - 30 μm and 15 - 45 μm), and agglomerated nano-meter sized particles (grain diameters between 200 to 500 nm) with a size distribution between 10 and 45 μm. Coatings were sprayed onto low carbon steel (XC38) substrates with several spray parameters, the plasma forming gas used being mixtures of Ar and H_2 (45/15 and 53/17 SLM, respectively). Results show that, with the tribological conditions used in this study, the wear resistance of coatings principally depends of their hardness and not very much on the starting powder morphologies.
机译：Al_2O_3-13％wt TiO_2热喷涂涂层由于具有高韧性而在摩擦学条件下表现出良好的耐磨性。通过大气等离子喷涂（APS）精心制作了具有两种不同结构和相似的二氧化钛含量的氧化铝/二氧化钛涂层。目的是比较结构对硬度和耐磨性的影响。用作原料的Al_2O_3-13 wt％TiO_2粉末具有两种不同的结构：微米级的，具有两种尺寸分布（5-30μm和15-45μm）的颗粒和团聚的纳米级颗粒（粒径在200至500之间）纳米），尺寸分布在10到45μm之间。用几个喷涂参数将涂层喷涂到低碳钢（XC38）基材上，所使用的等离子体形成气体是Ar和H_2（分别为45/15和53/17 SLM）的混合物。结果表明，在本研究中使用的摩擦学条件下，涂层的耐磨性主要取决于其硬度，而不是很大程度上取决于起始粉末的形貌。

著录项

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