Anisotropic mechanical properties of equal channel angular pressed Al-5% Zr alloy containing platelet particles

作者：El Hadad Shimaa^*; Sato Hisashi; Watanabe Yoshimi

来源：Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2010, 527(18-19): 4674-4679.

DOI：10.1016/j.msea.2010.04.049

• Al-Zr alloy
• ECAP
• Wear
• Anisotropic mechanical property
• Severe plastic deformation

Aluminum alloys containing platelet particles are known by their anisotropic mechanical properties. This anisotropy can be influenced by the change in the shape or the arrangement of those platelet intermetallics. In this study, the effect of processing Al/Al(3)Zr alloy by equal channel angular pressing (ECAP) on its anisotropic mechanical properties has been investigated. Al-5 mass% Zr alloys processed by ECAP using routes A and B(C) were used for the investigation. ECAPed samples showed a notable decrease in the size of the Al(3)Zr platelets and an increased tendency to align parallel to the deformation axis with increasing the number of passes. Some anisotropy in compression strength was observed at 4 passes of deformation: however, this anisotropy became negligible after 8 passes of ECAP. The wear tests showed that the ECAPed samples have almost isotropic wear property.

• 出版日期2010-7-15