• 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 >Investigation of the Tribological Properties of AlxSi-1.2Fe(Mn) (x=5-13 wt.%) Alloys
【24h】

Investigation of the Tribological Properties of AlxSi-1.2Fe(Mn) (x=5-13 wt.%) Alloys

机译：AlxSi-1.2Fe（Mn）的摩擦学性能研究（x = 5-13重量％）合金

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 effect of Fe-impurity and Mn modification on the sliding wear behavior of Al-xSi-1.2Fe(Mn) (x = 5-13 wt.%) alloys was investigated in dry sliding against AISI 52100 steel. According to the results, in the Si range of 5-9 wt.%, Fe-impurity promotes the formation of finely distributed beta-Al5FeSi intermetallics in the matrix increasing its hardness and potential to support the tribolayer leading to the improved wear characteristics. The presence of Fe in the composition of Al-(9-13)Si alloys, however, leads to the formation of primary beta-platelets that their sizes and volume fractions increase with Si concentration. The formation of primary compounds increases the hardness, but makes the alloys less ductile and more vulnerable to microcracking and wear. Manganese modification converts the beta-Fe platelets to the alpha-Al-15(Fe,Mn)(3)Si-2 compounds with different morphologies. The substitution of fine beta-platelets by alpha-Chinese scripts in Al-(5-9)Si-1.2FeMn alloys reduces the wear resistance, but the formation of primary alpha-compounds with star-like or polyhedral morphologies in Al-(9-13)Si-1.2FeMn alloys improves their wear characteristics. Moreover, it was found that the formation of Fe(Mn)-rich compounds affects the friction coefficient which is likely due to the fracture of particles in the subsurface region, their interaction with contacting surfaces, and their effect on the stability of the tribolayer.
机译：在对AISI 52100钢的干燥滑动中，研究了Fe-杂质和Mn改性对Al-XSi-1.2Fe（Mn）的滑动磨损行为的影响。根据结果​​，在5-9重量％的Si范围内。％，Fe-杂质促进了基质中的细胞分布β-Al5Fesi金属间质的形成，提高其硬度和潜力，以支撑Tribolayer导致改进的磨损特性。然而，Al-（9-13）Si合金组合物的Fe存在导致主要β-血小板的形成，其尺寸和体积馏分随Si浓度而增加。主要化合物的形成增加了硬度，但使合金较少，延展性较少，更容易受到微裂纹和磨损。锰修饰将Beta-Fe血小板转化为具有不同形态的α-Al-15（Fe，Mn）（3）Si-2化合物。通过Al-（5-9）Si-1.2次父母合金中的α-汉语脚本取代细β-血小板降低了耐磨性，但在AL-（9 -13）Si-1.2次武器改善了磨损特性。此外，发现Fe（Mn） - rich化合物的形成影响摩擦系数，这可能是由于地下区域中的颗粒的骨折，它们与接触表面的相互作用以及它们对Tribolayer的稳定性的影响。

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