Dislocation Creep and Substructure of Ni-NiO Alloy.
نویسندگان
چکیده
منابع مشابه
Dislocation jamming and andrade creep.
We simulate the glide motion of an assembly of interacting dislocations under the action of an external shear stress and show that the associated plastic creep relaxation follows Andrade's law. Our results indicate that Andrade creep in plastically deforming crystals involves the correlated motion of dislocation structures near a dynamic transition separating a flowing from a jammed phase. Simu...
متن کاملTransformation-Induced Creep and Creep Recovery of Shape Memory Alloy
If the shape memory alloy is subjected to the subloop loading under the stress-controlled condition, creep and creep recovery can appear based on the martensitic transformation. In the design of shape memory alloy elements, these deformation properties are important since the deflection of shape memory alloy elements can change under constant stress. The conditions for the progress of the marte...
متن کاملDislocation Substructure Evolution during Hydrostatic Extrusion of Al Mg Si Alloy
Hydrostatic extrusion is a technique which allows to produce rods with ultra ne grains and unexpectedly enhanced mechanical properties caused by grain re nement. However, the mechanism of such a re nement is not fully understood at this stage. 6xxx aluminium alloys series are usually processed by extrusion. In this study, commercial 6082 aluminium alloy was extruded at ambient temperature in a ...
متن کاملNi-NiO-Ni tunnel junctions for terahertz and infrared detection.
We present complete experimental determinations of the tunnel barrier parameters (two barrier heights, junction area, dielectric constant, and extrinsic series resistance) as a function of temperature for submicrometer Ni-NiO-Ni thin-film tunnel junctions, showing that when the temperature-invariant parameters are forced to be consistent, good-quality fits are obtained between I-V curves and th...
متن کاملModeling the Temperature Dependence of Tertiary Creep Damage of a Ni-Based Alloy
To capture the mechanical response of Ni-based materials, creep deformation and rupture experiments are typically performed. Long term tests, mimicking service conditions at 10,000 h or more, are generally avoided due to expense. Phenomenological models such as the classical Kachanov–Rabotnov (Rabotnov, 1969, Creep Problems in Structural Members, North-Holland, Amsterdam; Kachanov, 1958, “Time ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
سال: 1991
ISSN: 0387-5008,1884-8338
DOI: 10.1299/kikaia.57.2422