Large deformation stress - strain response in low stacking fault energy FCC metals

2022 ◽  
Author(s):  
Ehab Adel El-Danaf
Keyword(s):  
Large Deformation ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Strain Response ◽  
Stress Strain ◽  
Fcc Metals ◽  
Deformation Stress

A Method to Resolve the Properties of Individual Phases in Carbon-Black-Loaded Elastomer Blends

1991 ◽  
Vol 64 (2) ◽  
pp. 234-242
Author(s):  
R. F. Bauer ◽  
A. H. Crossland
Keyword(s):  
Carbon Black ◽  
Large Deformation ◽  
Polymer Phase ◽  
Stress Strain ◽  
Strain Behavior ◽  
Stress Behavior ◽  
Strain Relationship ◽  
Deformation Stress ◽  
The Individual ◽  
Vulcanization Process

Abstract Properties of the individual phases in a 70/30 carbon-black-loaded BR/NR blend could be successfully resolved using large deformation stress-strain modelling. Since the dispersed NR phase of the example had a lower modulus than the continuous BR phase, the interaction between the blend phases could be modelled by a simple parallel coupling arrangement. The stress behavior of each individual carbon-black-loaded polymer phase was then determined with respect to strain using a specially derived stress-strain relationship. The blend components also have to be characterized with respect to state-of-cure by empirically establishing how the parameters in the stress-strain relationship vary with respect to cure. The properties of the phases in the blend are then determined by finding the combination of component parameters which precisely reproduce the stress-strain behavior of the blend. In the demonstration example of this paper, there was evidence of a significant amount of curative migration between phases during the vulcanization process.

Grain Refinement of High-Purity FCC Metals Using Equal-Channel Angular Pressing

2007 ◽  
Vol 558-559 ◽  
pp. 1273-1278 ◽  
Author(s):  
Z. Horita ◽  
Kaoru Kishikawa ◽  
Keiichi Kimura ◽  
Kohei Tatsumi ◽  
Terence G. Langdon
Keyword(s):  
Equal Channel Angular Pressing ◽  
High Purity ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Grain Refining ◽  
Fcc Metals ◽  
Angular Pressing ◽  
The Difference ◽  
Pure Cu ◽  
Very High

Equal-channel angular pressing (ECAP) is a valuable technique for refining grain sizes to the submicrometer or the nanometer range. This study explores the reason for the difference in the grain refining behavior between pure Al and pure Cu. First, very high purity levels were adopted in order to minimize any effects of impurities: 99.999% for Al and 99.99999% for Cu. Second, high purity (99.999%) Au was also used in order to examine the effect of stacking fault energy. All three pure metals were subjected to ECAP and microstructural observations and hardness measurements were undertaken with respect to the number of ECAP passes. It is concluded that the stacking fault energy plays an important role and accounts for the difference in the grain refining behavior in the ECAP process.

Calculations of stacking fault energy for fcc metals and their alloys based on an improved embedded-atom method

1995 ◽  
Vol 96 (10) ◽  
pp. 729-734 ◽  
Author(s):  
Xiliang Nie ◽  
Renhui Wang ◽  
Yiying Ye ◽  
Yumei Zhou ◽  
Dingsheng Wang
Keyword(s):  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Embedded Atom Method ◽  
Fcc Metals ◽  
Embedded Atom

Molecular Dynamics Simulations to Evaluate the Effect of the Difference in Material Properties on Irradiation-Induced Defect Formation Under Applied Strain

2012 ◽  
Author(s):  
Toshihiro Horinouchi ◽  
Satoshi Miyashiro ◽  
Mitsuhiro Itakura ◽  
Taira Okita
Keyword(s):  
Molecular Dynamics ◽  
Defect Formation ◽  
Stacking Fault ◽  
Applied Strain ◽  
Stacking Fault Energy ◽  
Cascade Process ◽  
Defect Production ◽  
Fcc Metals ◽  
The Difference ◽  
Dynamics Simulations

The influence of applied strain on the defect production rate during a cascade process was evaluated for several FCC metals with different Stacking Fault Energy by the method of molecular dynamics. It was found that applied strain increases the number of surviving defects, which is caused by the enhanced formation of larger clusters. It was also found that the number of defects is almost independent of Stacking Fault Energy even under applied strain.

Screw dislocation–spherical void interactions in fcc metals and their dependence on stacking fault energy

2019 ◽  
Vol 54 (17) ◽  
pp. 11509-11525 ◽  
Author(s):  
Sho Hayakawa ◽  
Kohei Doihara ◽  
Taira Okita ◽  
Mitsuhiro Itakura ◽  
Masaatsu Aichi ◽  
...  
Keyword(s):  
Screw Dislocation ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Spherical Void ◽  
Fcc Metals
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