Results 31 to 40 of about 151,897 (279)

Cell wall material strain hardening on dynamic responses of closed-cell foams

open access: yesScience and Engineering of Composite Materials, 2017
The paper focuses on the effects of the cell wall material strain hardening on the mechanical behavior of closed-cell foams subjected to the constant velocity loading.
Zhang Jianjun, Wang Zhihua, Zhao Longmao
doaj   +1 more source

Plastic deformation modelling of tempered martensite steel block structure by a nonlocal crystal plasticity model

open access: yesTheoretical and Applied Mechanics Letters, 2014
The plastic deformations of tempered martensite steel representative volume elements with different martensite block structures have been investigated by using a nonlocal crystal plasticity model which considers isotropic and kinematic hardening produced
Martin Boeff   +2 more
doaj   +1 more source

Achieving excellent mechanical properties in a dual-phase FeCrNi medium entropy alloy through athermal transformations and dislocation structures

open access: yesJournal of Materials Research and Technology, 2023
In this study, a face-centered cubic (FCC) + body-centered cubic (BCC) dual-phase Fe40Cr40Ni20 (at.%) medium-entropy alloy (MEA) with outstanding mechanical properties was developed.
Xuguang Dong   +4 more
doaj   +1 more source

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   +2 more sources

Strain range dependent cyclic hardening of 08Ch18N10T stainless steel-experiments and simulations [PDF]

open access: yes, 2019
This paper describes and presents an experimental program of low-cycle fatigue tests of austenitic stainless steel 08Ch18N10T at room temperature. The low-cycle tests include uniaxial and torsional tests for various specimen geometries and for a vast ...
Fumfera, Jaromír   +4 more
core   +1 more source

Orientation Influence on Tensile Strain Hardening in Forged Plates of AA2014 Aluminium Alloy [PDF]

open access: yesArchives of Metallurgy and Materials
Strain hardening is an effective strengthening method for alloys that requires plastic deformation of the material during manufacturing. The strength will significantly increase due to the number of dislocations formed during plastic flow of material ...
G. Narender   +4 more
doaj   +1 more source

Tensile strain-hardening behavior and related deformation mechanisms of pure titanium at cryogenic temperature

open access: yesJournal of Materials Research and Technology, 2023
The tensile strain-hardening behavior of pure Ti at 100 K was investigated using X-ray diffraction line-profile analysis and plasticity simulation. The strain hardening was significantly increased at 100 K, compared with that observed at 298 K.
Jong Woo Won   +5 more
doaj   +1 more source

Strong Strain Hardening in Nanocrystalline Nickel [PDF]

open access: yesPhysical Review Letters, 2009
Low strain hardening has hitherto been considered an intrinsic behavior for most nanocrystalline (NC) metals, due to their perceived inability to accumulate dislocations. In this Letter, we show strong strain hardening in NC nickel with a grain size of approximately 20 nm under large plastic strains.
X L, Wu, Y T, Zhu, Y G, Wei, Q, Wei
openaire   +2 more sources

Nanoscale gold pillars strengthened through dislocation starvation [PDF]

open access: yes, 2006
It has been known for more than half a century that crystals can be made stronger by introducing defects into them, i.e., by strain-hardening. As the number of defects increases, their movement and multiplication is impeded, thus strengthening the ...
Greer, Julia R., Nix, William D.
core   +1 more source

Tensile Strain Hardening Behavior and Fractography of Superalloy GH39

open access: yesJournal of Aeronautical Materials, 2016
The strain hardening behaviour and fractography of superalloy GH39 was investigated by tensile test at different strain rates. Results indicate that strain hardening behaviours are different during the deformation process.
WANG Hui   +5 more
doaj   +1 more source

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