|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Mechanical Behavior of Nanostructured Materials
||Dependence of Shear Mixing on Alloy Properties: A Study on Cu-X-Mo Ternary Alloys
||Nisha Verma, Nirab Pant, John A Beach, Pascal Bellon, Robert S Averback
|On-Site Speaker (Planned)
Forced chemical mixing under severe plastic deformation in highly immiscible binary alloys is at present poorly understood. On the one hand, precipitate sizes in these alloys can be reduced to nanometers during shear mixing at low temperatures and solubilities gets greatly enhanced, but on the other hand, they do not homogenize. One difficulty in developing an understanding of this behavior derives from the fact that several materials properties are involved in the shear mixing of binary alloys, and in binary systems they cannot be systematically controlled. In the present work, we examined dilute ternary Cu-X-Mo alloys, where X = Ag or Ni. By varying the concentration and thermochemical properties of X, we systematically varied the heat of mixing and relative elastic properties of Mo in the alloy. The precipitates sizes and solubilities of Mo during ball milling or HPT were followed by TEM and x-ray diffraction. The results are compared with model MD simulations.
||Planned: Supplemental Proceedings volume