Results 31 to 40 of about 25,504 (165)

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

Analysis of Strain Hardening Stages of AISI 316 LN Stainless Steel Under Cold Rolling Conditions

open access: yesMetals
In the present investigation, stress–strain curves and strain hardening rates on samples rolled at ambient temperature with thickness reductions of 0%, 10%, 30%, and 50% were studied.
Tibor Kvačkaj   +4 more
doaj   +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

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

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

Contribution of Different Hardening Mechanisms during Cold Working of AISI 304L Austenitic Stainless Steel [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
The contributions of work-hardening of austenite and the presence of martensite on the hardening of an AISI 304L stainless steel were evaluated based on plastic deformation under different reductions in thickness at two rolling temperatures.
T. Mirzaie, H. Mirzadeh, M. Naghizadeh
doaj   +1 more source

Computational modeling of dynamic mechanical properties of pure polycrystalline magnesium under high loading strain rates

open access: yesEPJ Web of Conferences, 2015
Computational simulations were performed to investigate the dynamic mechanical behavior of pure polycrystalline magnesium under different high loading strain rates with the values of 800, 1000, 2000, and 3600 s−1.
Li Qizhen
doaj   +1 more source

Fractional derivative-based normalized viscoelastic model of strain-hardening clays

open access: yesFrontiers in Materials
Introduction: The stress-strain relationship of clays characterized by strain hardening exhibits varying curves under different confining pressures and dry densities.Methods: Considering the viscoelastic properties of clays, a normalized viscoelastic ...
Yin Tang   +4 more
doaj   +1 more source

Some aspects on geometric and matrix work-hardening characteristics of sintered cold forged copper alloy preforms [PDF]

open access: yesMaterials Research, 2013
Powder metallurgy (P/M) material subjected to plastic deformation results into densification, however the extended deformation would not only enhance the densification also supplements the strain hardening.
A Rajeshkannan   +2 more
doaj   +1 more source

Strain hardening by sediment transport

open access: yesPhysical Review Research, 2022
The critical fluid-shear stress for the onset of sediment transport, θ_{c}, varies with the history of applied shear. This effect has been primarily attributed to compaction; the role of shear jamming is less explored.
Fernando D. Cúñez   +4 more
doaj   +1 more source

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