Results 81 to 90 of about 88,232 (305)

Micrometre-scale plasticity size effects in metals and ceramics: theory and experiment.

, 2009
PhDThis thesis comprises studies of size effects in the plasticity of metals and ceramics at length scales of the order of micrometres and includes both experimental work and theoretical development. Experimental results are presented for foil flexure
Zhu, Tingting
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Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Formation and deformation mechanisms of gradient structures: The role of strain hardening

Materials & Design
Gradient structures (GS) have emerged as a focal point due to their capability to overcome the performance limitations of homogeneous materials. In this study, GS was prepared using the cyclic torsion method for low-carbon (LC) and twinning-induced ...
Taifeng Cao, Zhouzhu Mao, Shiyu Du, Xiaofeng Qin, Aiguo Pi, Tuanwei Zhang, Zhihua Wang   +6 more
doaj   +1 more source

Gradient structure produces superior dynamic shear properties

Materials Research Letters, 2017
We report that gradient-structured twinning-induced plasticity steels have much superior dynamic shear properties over homogeneous nanostructured (NS) counterparts.
Xiangde Bian, Fuping Yuan, Yuntian Zhu, Xiaolei Wu   +3 more
doaj   +1 more source

Evolution of the length scale in strain gradient plasticity

, 2019
An equivalence is assumed between a microstructural length scale related to dislocation density and the constitutive length scale parameter in phenomenological strain gradient plasticity.
Dahlberg, Carl F. O.,, Boåsen, Magnus,
core   +1 more source

Uncoupled dissipation assumption to control elastic gaps in Gurtin-type strain gradient models [PDF]

, 2020
Thanks to their capabilities in capturing size effects, strain gradient plasticity theories have received a strong scientific interest in the last two decades.
CAI, Lei, JEBAHI, Mohamed, ABED-MERAIM, Farid   +2 more
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Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

On energetic and dissipative gradient effects within higher-order strain gradient plasticity: Size effect, passivation effect, and Bauschinger effect

, 2021
The size effect, the passivation effect, and the plastic behavior under non-proportional loading in the context of bending and tension of thin foils, and a combination of compression and shear of constrained layers, are studied using Gudmundson’s higher ...
Hua, F, Li, Y, Dunstan, D, He, Y
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Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Adaptation to climate in widespread eucalypt species [PDF]

, 2013
The long term success of revegetation efforts will depend upon the planted species’ resilience to climate change. Many widespread species grow across a range of climatic conditions and, thus, may possess adaptations that could be utilised to improve ...
Suzanne Prober, Liz McLean, Margaret Byrne   +2 more
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