Results 41 to 50 of about 25,504 (165)

Constitutive modeling for the flow stress behaviors of alloys based on variable order fractional derivatives

open access: yesMaterials Research Express, 2022
During hot working, alloys may experience three kinds of flow stress behaviors, including strain hardening, strain softening, or steady flow, because of the competition of work hardening and thermal softening. Modelling the flow stress behaviors plays an
Ruifan Meng, Liu Cao, Qindan Zhang
doaj   +1 more source

Nanoscale Strain-Hardening of Keratin Fibres

open access: yesPLoS ONE, 2012
Mammalian appendages such as hair, quill and wool have a unique structure composed of a cuticle, a cortex and a medulla. The cortex, responsible for the mechanical properties of the fibers, is an assemblage of spindle-shaped keratinized cells bound together by a lipid/protein sandwich called the cell membrane complex. Each cell is itself an assembly of
Patrick Fortier   +2 more
openaire   +4 more sources

Multi-stage strain-hardening behavior of dual-phase steels: A review

open access: yesJournal of Materials Research and Technology
Regardless of the abundant studies that have been published on various characteristics of dual-phase (DP) steels, a comprehensive review paper on the strain-hardening behavior of such materials is still lacking.
Y. Najafi   +3 more
doaj   +1 more source

Evidence of Strain Hardening in DNA Gels

open access: yesMacromolecules, 2010
Strain hardening observed in many biological gels is nature's defense against the external forces to protect the tissue integrity. Here, we show that double-stranded (ds) DNA gels also stiffen as they arestrained.ChemicalDNAgelswerepreparedbysolutioncross-linkingofds-DNA(about2000basepairs long) using the cross-linker ethylene glycol diglycidyl ether ...
Orakdogen, Nermin   +2 more
openaire   +2 more sources

SOME ASPECTS OF FRICTION AND ANISOTROPIC RATIOS ON THE WORK HARDENING BEHAVIOR IN THE UPSETTING TESTS [PDF]

open access: yesProceedings on Engineering Sciences
Metal upsetting is a primary mechanical working operation to reduce the cross-section of the billets, and there are few challenges that are to be solved.
Harikrishna Ch   +5 more
doaj   +1 more source

Analysis of strain hardening of ADI at isothermal hardening temperatures

open access: yesBulletin of the National Technical University «KhPI» Series: New solutions in modern technologies, 2020
The effect of isothermal hardening temperature on the mechanical properties of ADI materials is investigated. The heat treatment of the test samples consisted of the heating above the temperature of transformation of the ferrite component in austenite and isothermal hardening at temperatures from 280 to 380 °C.
Gogaev, Kazbek   +5 more
openaire   +3 more sources

Strain hardening of crystalline materials

open access: yesACI Avances en Ciencias e Ingenierías, 2010
To describe the work hardening process of crystalline materials in uniaxial deformation, a gradient-one-internal-variable model (GM1) constructed in the basis of the Kocks-Mecking model is proposed.
Edison A. Bonifaz
doaj   +1 more source

Multifractal Characteristics of Gain Structures: A Universal Law of Polycrystalline Strain-Hardening Behaviors

open access: yesFractal and Fractional
The quantitative relationship between material microstructures, such as grain distributions, and the nonlinear strain-hardening behaviors of polycrystalline metals has not yet been completely understood.
Maoqing Fu   +5 more
doaj   +1 more source

On strain hardening mechanism in gradient nanostructures

open access: yesInternational Journal of Plasticity, 2017
AbstractExperiments have shown that a gradient design, in which grain size spans over four orders of magnitude, can make strong nanomaterials ductile. The enhanced ductility is attributed to the considerable strain hardening capability obtained in the gradient metals. A non-uniform deformation on the lateral sample surface is also observed.
Li, Jianjun   +3 more
openaire   +2 more sources

Correlation between room-temperature strain hardening slope and high-temperature strain hardening modulus for polyethylene resins

open access: yesPolymer Testing
Traditional accelerated methods for assessing slow crack growth (SCG) resistance in polyethylene (PE) are time-consuming and costly. Conversely, the strain hardening test (SHT) has been widely adopted to characterize the relative SCG resistance during a ...
Jiawei Liu   +4 more
doaj   +1 more source

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