Results 91 to 100 of about 5,304,813 (404)

Effect of doping on nanoindentation induced incipient plasticity in InP crystal

AIP Advances, 2019
This article is concerned with incipient plasticity in an InP crystal studied by nanoindentation experiments and ab initio simulations. We consider dislocation-nucleation phenomena and pressure-induced phase transformation to be the alternative ...
Dariusz Chrobak, Artur Chrobak, Roman Nowak   +2 more
doaj   +1 more source

Plasticity: from Crystal Lattice to Macroscopic Phenomena

Успехи физики металлов, 2021
New representations concerning plasticity physics in crystals are discussed. The model of plastic flow is suggested, which can describe its main regularities.
L. B. Zuev, S. A. Barannikova, V. I. Danilov, and V. V. Gorbatenko
doaj   +1 more source

Low‐Activation Compositionally Complex Alloys for Advanced Nuclear Applications—A Review

Advanced Engineering Materials, EarlyView.
Low‐activation compositionally complex alloys (LACCAs) are advanced metallic materials primarily composed of low‐activation elements, offering advantages such as rapid compliance with operational standards and safe recyclability. This review highlights their potential for extreme high‐temperature irradiation environments as structural materials for ...
Yangfan Wang, Hanliang Zhu, Zhiyang Wang, Zhijun Qiu, Xiao Wang, Zengxi Pan, Hongtao Zhu, Mingxing Zhang, Huijun Li   +8 more
wiley   +1 more source

Modeling the hall-petch effect with a gradient crystal plasticity theory including a grain boundary yield criterion [PDF]

, 2013
. A strain gradient crystal plasticity theory including the gradient of the equiv- alent plastic strain ∇γeq is discussed. A grain boundary yield condition is proposed in order to account for the influence of the grain boundaries ...
Bayerschen, Eric, Böhlke, Thomas, Wulfinghoff, Stephan   +2 more
core  

Quantized plastic deformation [PDF]

Journal of the Mechanics and Physics of Solids, vol. 190 (September):105704 (2024)
In engineering crystal plasticity inelastic mechanisms correspond to tensorial zero-energy valleys in the space of macroscopic strains. The flat nature of such valleys is in contradiction with the fact that plastic slips, mimicking lattice-invariant shears, are inherently discrete. A reconciliation has recently been achieved in the mesoscopic tensorial
arxiv   +1 more source

Synergistic Effects of Cerium and Magnesium on Optimizing Electrical Conductivity and Mechanical Properties of AlSi3 Cast Alloys

Advanced Engineering Materials, EarlyView.
This study investigates the impact of Ce and/or Mg on the electrical conductivity (EC) and mechanical properties of AlSi3 cast alloy. It highlights the synergistic effects of Ce and Mg on eutectic Si modification and Mg solute reduction in the Al matrix, resulting in the optimization of EC, strength, and ductility of the alloy.
Farnaz Yavari, Mousa Javidani, Lei Ray Pan, X.‐Grant Chen   +3 more
wiley   +1 more source

Crystal plasticity finite element simulations of cast α-uranium [PDF]

, 2019
α-uranium, the stable phase of uranium up to 670◦C, has a base-centred orthorombic crystal structure. This crystal structure gives rise to elastic and thermal anisotropy, meaning α-uranium exhibits complex deformation and fracture behaviour ...
Cocks, Alan C. F., Grilli, Nicolò, Tarleton, Edmund   +2 more
core  

Determination of the universality class of crystal plasticity

, 2013
Although scaling phenomena have long been documented in crystalline plasticity, the universality class has been difficult to identify due to the rarity of avalanche events, which require large system sizes and long times in order to accurately measure ...
Dahmen, Karin A., Goldenfeld, Nigel, Tsekenis, Georgios, Uhl, Jonathan T.   +3 more
core   +1 more source

Enhancing the Age‐Hardening Response of Laser Powder‐Bed Fusion WE43 Alloy through Microstructural Control

Advanced Engineering Materials, EarlyView.
Laser powder‐bed fusion (L‐PBF) can produce dense WE43 magnesium alloy parts, but their mechanical properties are limited by a nonhomogeneous microstructure. This study investigates the effects of varying direct aging (T5) and artificial age‐hardening (T6) conditions on microstructure and strength. Optimized T6 treatment significantly improves strength
Prathviraj Upadhyaya, Sinéad M. Uí Mhurchadha, Oliver J. McCarthy, Tríona Kennedy, Mert Celikin, Ramesh Raghavendra   +5 more
wiley   +1 more source

Lifetime Prediction of Single Crystal Nickel-Based Superalloys

Applied Sciences
Single crystal nickel-based superalloys are extensively used in turbine blade applications due to their superior creep resistance compared to their polycrystalline counterparts.
Çağatay Kasar, Utku Kaftancioglu, Emin Bayraktar, Ozgur Aslan   +3 more
doaj   +1 more source