Results 21 to 30 of about 6,691 (300)
Simultaneous grain boundary motion, grain rotation, and sliding in a tricrystal [PDF]
Mechanics of Materials, 2015 Grain rotation and grain boundary (GB) sliding are two important mechanisms for grain coarsening and plastic deformation in nanocrystalline materials. They are in general coupled with GB migration and the resulting dynamics, driven by capillary and external stress, is significantly affected by the presence of junctions.
Basak, Anup, Gupta, Anurag
openaire +2 more sources
On the Common Origin of Structural Superplasticity in Different Classes of Materials
Reviews on Advanced Materials Science, 2018 The present model starts with an assumption that grain/ interphase boundary sliding (GBS) that is dominant during optimal superplastic flow is slower than the accommodation processes of dislocation emission from sliding boundaries, highly localized ...
Padmanabhan K. A., Basariya M. Raviathul
doaj +1 more source
Grain boundary sliding in polycrystalline materials
, 1979 Delayed elastic phenomenon during high-temperature creep of polycrystalline materials is correlated with strain due to grain boundary sliding. This correlation has been used to develop a phenomenological viscoelastic model that includes the grain-size effect.
Sinha, N. K.
openaire +2 more sources
Scientific Reports, 2018 Recent developments of nanostructured materials with grain sizes in the nanometer to submicrometer range have provided ground for numerous functional properties and new applications.
Kaveh Edalati +2 more
doaj +1 more source
Hot ductility of Fe-36Ni invar alloy
工程科学学报, 2016 The hot ductility behaviors of Fe-36Ni alloy in the temperature range of 900-1200 ℃ were investigated by using a Gleeble-3800 thermal simulator. The influence factors and mechanism of action on the hot ductility were systematically analyzed by FaetSage ...
HE Yu-tian +5 more
doaj +1 more source
Using High-Pressure Torsion to Achieve Superplasticity in an AZ91 Magnesium Alloy
Metals, 2020 An AZ91 magnesium alloy (Mg-9%, Al-1% Zn) was processed by high-pressure torsion (HPT) after solution-heat treatment. Tensile tests were carried out at 423, 523, and 623 K in the strain rate range of 10−5−10−1 s−1 to evaluate the occurrence of ...
Roberto B. Figueiredo +1 more
doaj +1 more source
Nature Communications, 2023 The improvement of non-oxide ceramic plasticity while maintaining the high-temperature strength is a great challenge through the classical strategy, which generally includes decreasing grain size to several nanometers or adding ductile binder phase. Here,
Haiyue Xu +12 more
doaj +1 more source
Damping Mechanism of SiC Particle Reinforced Al Matrix Composites
MATEC Web of Conferences, 2016 The low-frequency internal friction behavior of SiC particle reinforced Al matrix composites was studied over a temperature range from 23°C to 550°C at frequencies of 0.1, 1 and 5 Hz.
Li Xiao +5 more
doaj +1 more source
Nuclear Materials and Energy, 2016 The high-temperature deformation process of the recrystallized 16CrODS ferritic steel was investigated at 1000°C for the stress loading perpendicular to the elongated grain structure.
R. Kamikawa +8 more
doaj +1 more source
Effects of grain boundary engineering treatment on fretting wear behavior of Inconel 690TT alloy
Cailiao gongcheng, 2020 The grain boundary engineering (GBE) treatment of heat treatment and cold rolling was adopted.The fretting wear behavior of Inconel 690TT alloy in air at room temperature and 320 ℃ was studied by OM, SEM, EBSD and white light interferometer.
HAN Yong-ming +5 more
doaj +1 more source