Results 11 to 20 of about 898,092 (267)

Micro-grinding temperature prediction considering the effects of crystallographic orientation

open access: yesManufacturing Review, 2019
Tensile stress and thermal damage resulting from thermal loading will reduce the anti-fraying and anti-fatigue of workpieces, which is undesirable for micro-grinding, so it is imperative to control the rise of temperature.
Zhao Man, Ji Xia, Liang Steven Y.
doaj   +1 more source

The Study of the Effect of Alternate Intermittent Deformation on the Bauschinger Effect in a Zirconium-Based Alloy [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
The article reports the results of research on the influence of the alternate intermittent deformation of specimens by a torsion method on the Bauschinger effect in the Zr-1%Nb zirconium-based alloy.
H. Dyja   +3 more
doaj   +1 more source

Personality, stress, and venous flow rates [PDF]

open access: yesJournal of Psychosomatic Research, 1971
Abstract A technique of directly measuring Venous Flow Rate (VFR) in a large superficial limb vein is described. With this technique, increases in VFR were noted in response to Epinephrine; and decreases in VFR, in response to the anticipation of, and the performance of an alerting mental arithmetic problem.
Silverman, Albert J., McGough, W. Edward
openaire   +3 more sources

Hot compressive deformation behavior and microstructure characteristics of new ultra strength Al-Zn-Mg-Cu alloy

open access: yesCailiao gongcheng, 2019
The hot compression test of the new ultra strength Al-Zn-Mg-Cu-Zr-Sc alloy at high temperature was carried out by using the Gleeble-1500 thermal simulator.
WANG Yu   +6 more
doaj   +1 more source

A characterization for the flow behavior of as-extruded 7075 aluminum alloy by the improved Arrhenius model with variable parameters

open access: yesMaterials Research, 2012
In order to perform the numerical simulations of forging response and establish the processing parameters for as-extruded 7075 aluminum alloy, the compressive deformation behavior of as-extruded 7075 aluminum alloy were investigated at the temperatures ...
Guo-zheng Quan   +5 more
doaj   +1 more source

Stress Induced Crystallization in Elongational Flow [PDF]

open access: yesInternational Polymer Processing, 2003
Abstract Stress-induced crystallization is studied in an extensional flow device (a cross-slot flow cell) for an isotactic Polypropylene (iPP) by measuring the micro-structure that develops after flow. Birefringence and Wide Angle X-ray experiments were performed.
Swartjes, F.H.M.   +3 more
openaire   +2 more sources

Modeling and simulation of dynamic recrystallization behavior for Q890 steel plate based on plane strain compression tests

open access: yesOpen Physics, 2020
In view that the traditional dynamic recrystallization (DRX) model cannot effectively predict the DRX process in the hot deformation process of sheet metal, DRX behavior modeling and simulation of q890 steel plate based on the plane strain compression ...
Yang Lei, He Yi-Zhu
doaj   +1 more source

Bounds on Surface Stress-Driven Shear Flow [PDF]

open access: yesJournal of Nonlinear Science, 2013
The background method is adapted to derive rigorous limits on surface speeds and bulk energy dissipation for shear stress driven flow in two and three dimensional channels. By-products of the analysis are nonlinear energy stability results for plane Couette flow with a shear stress boundary condition: when the applied stress is gauged by a ...
Hagstrom, George I., Doering, Charles R.
openaire   +3 more sources

Predicting Flow Stress Behavior of an AA7075 Alloy Using Machine Learning Methods

open access: yesCrystals, 2022
The present work focuses on the prediction of the hot deformation behavior of thermo-mechanically processed precipitation hardenable aluminum alloy AA7075.
Jens Decke   +8 more
doaj   +1 more source

Extended Stress–Strain Characterization of Automotive Steels at Dynamic Rates

open access: yesMetals, 2022
Demanding structural applications require a detailed knowledge of the materials response up to the very late stages before failure. Ductile high-strength steels may undergo pronounced necking over the majority of their straining life; this makes a ...
Giuseppe Mirone   +4 more
doaj   +1 more source

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