Anisotropic creep properties of aluminized Ni-based single-crystal superalloy at intermediate and high temperatures

作者：Latief F H^*; Kakehi K; Murakami H

来源：Scripta Materialia, 2013, 68(2): 126-129.

DOI：10.1016/j.scriptamat.2012.09.032

• Ni-based superalloy
• Aluminizing treatment
• Crystallographic orientation
• Creep

An aluminized Ni-based single-crystal superalloy was examined to investigate the anisotropic creep properties at intermediate and high temperatures. It was found that the specimens with a (1 0 0) side surface showed longer creep rupture life than the specimens with a (1 0 0) side surface. This means that anisotropy of the secondary orientation, which is normal to the primary orientation, occurred. The anisotropic creep behavior of the aluminized specimen was induced by a different arrangement of {1 1 1}%26lt; 1 0 1 %26gt; slip systems between the two side-surface specimens.

• 出版日期2013-1