Microstructure and High-Temperature Creep Behavior of NiAl-25 at.% Cr Intermetallic Compound
The creep behavior and mechanisms of extruded NiAl-25Cr alloy at elevated temperatures have been studied in the paper. Analysis of the creep data over the temperature range 1073-1123 K reveals two distinct regions of creep behavior present in this material. At lower temperature, the creep characteristics are consistent with mobility-controlled deformation where viscous glide of dislocations controls creep. At higher temperature, the creep characteristics are consistent with a structure controlled creep process where some form of dislocation climb controls creep deformation.
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
X. H. Du et al., "Microstructure and High-Temperature Creep Behavior of NiAl-25 at.% Cr Intermetallic Compound", Materials Science Forum, Vols. 475-479, pp. 771-774, 2005