Results 11 to 20 of about 153,531 (299)

Dislocation multi-junctions and strain hardening [PDF]

open access: yesNature, 2006
At the microscopic scale, the strength of a crystal derives from the motion, multiplication and interaction of distinctive line defects called dislocations. First proposed theoretically in 1934 (refs 1-3) to explain low magnitudes of crystal strength observed experimentally, the existence of dislocations was confirmed two decades later.
Bulatov, V.   +11 more
openaire   +4 more sources

Strain hardening behavior of Mg–Y alloys after extrusion process

open access: yesJournal of Magnesium and Alloys, 2019
The strain hardening is an effective mode of enhancing mechanical properties in alloys. In this work, the strain hardening behaviors of Mg-xY (x = 1, 2, and 3 wt%) after extrusion process was investigated using uniaxial tensile tests.
Chaoyue Zhao   +8 more
doaj   +3 more sources

Strain Rate Dependence of Hardness for PE and SME TiNi Alloys

open access: yesMetals, 2020
In this paper, the strain rate dependence of hardening behavior of polycrystalline pseudoelastic (PE) and shape memory effect (SME) TiNi alloy under impact loading was investigated by experiments.
Lingyan Shen, Mengmeng Hui, Yonggui Liu
doaj   +1 more source

Strain Hardening at Large Strains [PDF]

open access: yes, 1989
The strain hardening properties of various fcc metals have been investigated at large strains by means of torsion tests of short thin-walled cylinders. The results show that Stage IV occurs in all cases provided that a low enough test temperature is used; it is a nearly constant hardening rate of 2.10/sup /minus/4/ G in terms of resolved flow stress ...
Rollett, A. D.   +4 more
openaire   +1 more source

Effect of material hardening model for canister on finite element cask drop simulation for strain-based acceptance evaluation

open access: yesNuclear Engineering and Technology, 2022
The effect of the material hardening model of the canister on a finite element vertical cask drop simulation is investigated for the strain-based acceptance evaluation.
Hune-Tae Kim   +5 more
doaj   +1 more source

Deforming glassy polystyrene: Influence of pressure, thermal history, and deformation mode on yielding and hardening [PDF]

open access: yes, 2009
The toughness of a polymer glass is determined by the interplay of yielding, strain softening, and strain hardening. Molecular-dynamics simulations of a typical polymer glass, atactic polystyrene, under the influence of active deformation have been ...
Alexey V. Lyulin   +14 more
core   +1 more source

Mechanical Behavior of 316L Stainless Steel after Strain Hardening

open access: yesMATEC Web of Conferences, 2017
The effects of strain hardening on the mechanical behavior of 316L stainless steel were studied in the paper. The original and different strain hardening materials were compared to investigate the mechanical behavior.
Li Kaishang, Peng Jian, Peng Jian
doaj   +1 more source

New Stress-Strain Model for Identifying Plastic Deformation Behavior of Sheet Materials [PDF]

open access: yes한국정밀공학회지, 2017
In sheet metal forming numerical analysis, the strain hardening equation has a significant effect on calculation results, especially in the field of spring-back. This study introduces the Kim-Tuan strain hardening model.
Young Suk Kim   +2 more
doaj   +1 more source

Influence of strain-hardening models and slopes on the predicted residual stresses in structural steel S235 weldments

open access: yesJournal of Materials Research and Technology, 2022
The objective of this research is to systematically understand how strain-hardening models and phase- and temperature-dependent strain-hardening slopes affect the computed residual stresses in single-pass welded joints made of the widely used structural ...
Jiamin Sun   +2 more
doaj   +1 more source

Effect of Heat Treatment on the Strain Hardening Behaviour of an Al-Si-Cu Alloy [PDF]

open access: yesArchives of Foundry Engineering
This study investigates the mechanical behaviour of the AlSi9Cu1 alloy after T6 heat treatment, with a focus on its strain hardening response. Uniaxial tensile tests were conducted on heat-treated specimens to determine the strain hardening exponent n ...
M. Frátrik, E. Kantoríková
doaj   +1 more source

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