Results 31 to 40 of about 84,530 (198)

Modelling of plastic deformation in magnesium [PDF]

International Journal of Material Forming, 2009
In the present contribution, a viscoplastic rate-dependent constitutive model based on Schmid’s law has been used to designate the activity level of pure magnesium deformation systems. A crystal plasticity model in the framework of finite elements was used to investigate the deformation systems on the scale of single- and polycrystals.
Homayonifar, M., Steglich, D., Brocks, W.   +2 more
openaire   +2 more sources

On the microstructure, texture and electrochemical properties of severely deformed and artificially aged lightweight AA2050 Al–Cu–Li alloy

Materials Research Express
Lightweight 3rd generation Al–Cu–Li alloy AA2050 was severely deformed via Multi Axial Forging (MAF) at 170 °C followed by artificial aging at 150 °C.
C Jagadeesh, Shivananda Nayaka H, Prithivirajan S, Ramesh S, Gajanan Anne   +4 more
doaj   +1 more source

Effects of temperature and strain rate on the tension-compression asymmetric plastic deformation behavior of ME20M magnesium alloy: Experiments and modeling

Results in Physics, 2021
The tension-compression asymmetry of a rare-earth-containing alloy sheet, ME20M, is experimentally investigated along the rolling direction over a wide strain-rate range from 0.001 to 2500 s−1 and at temperatures from 213 to 488 K. The asymmetry of yield
Jin Wang, Yang Wang, Ziran Li
doaj  

Microstructural Characterization Of Quenched And Plastically Deformed Two-Phase α+β Titanium Alloys

Archives of Metallurgy and Materials, 2015
Development of microstructure in two-phase α+β titanium alloys is realized by thermomechanical processing – sequence of heat treatment and plastic working operations.
Motyka M., Sieniawski J., Ziaja W., Mrówka-Nowotnik G.   +3 more
doaj   +1 more source

Plastic Deformation of Crystals [PDF]

Nature, 1955
Dislocations and Plastic Flow in Crystals By Prof. A. H. Cottrell. (International Series of Monographs on Physics.) Pp. x + 223 + 8 plates. (Oxford: Clarendon Press; London: Oxford University Press, 1953.) 25s. net.
openaire   +2 more sources

Influence of Temperature and Plastic Strain on Deformation Mechanisms and Kink Band Formation in Homogenized HfNbTaTiZr

Crystals, 2021
Due to its outstanding ductility over a large temperature range, equiatomic HfNbTaTiZr is well-suited for investigating the influence of temperature and plastic strain on deformation mechanisms in concentrated, body centered cubic solid solutions.
Hans Chen, Theresa Hanemann, Sascha Seils, Daniel Schliephake, Aditya Srinivasan Tirunilai, Martin Heilmaier, Klaus-Peter Weiss, Alexander Kauffmann   +7 more
doaj   +1 more source

Deepening the cognition of ultrasonic vibration's role on plastic deformation of 2219 aluminum alloy tube during ultrasonic surface rolling process

Manufacturing Review
This work aims to enhance the comprehension of the effect of ultrasonic vibration on the plastic deformation of 2219 aluminum alloy during ultrasonic surface rolling process (USRP).
Zhang YuanQi, Zhan Mei, Fan XiaoGuang
doaj   +1 more source

Effect of a plastic deformation on the Guinier-Preston zones growth in Al-5at%Ag alloy

AIMS Materials Science, 2016
The formation of the Guinier-Preston zones in aluminium alloys is closely linked with the excess vacancies. A plastic deformation exerts an influence on the Guinier-Preston zones precipitation.
Sabah Senouci, Mouhyddine Kadi-Hanifi, Azzeddine Abderrahmane Raho   +2 more
doaj   +1 more source

Analysis of the Effect of Preliminary and Cyclic Plastic Deformation on the Chemical-Thermal Treatment of Structural Steels

Механика машин, механизмов и материалов
The subject of the study was thermodiffusion nitrided and silicified layers on steels obtained after plastic deformation. The influence of preliminary plastic deformation on the low-temperature nitriding process and cyclic plastic deformation on the high-
Valerij M. Konstantinov, Vladislav A. Leshok, Oleg P. Shtempel   +2 more
doaj   +1 more source

Research on large deformation mechanism of deep roadway with dynamic pressure

Energy Science & Engineering, 2020
In this paper, the large deformation mechanism of deep dynamic pressure roadway is studied from the perspective of the formation and development of plastic zone, and creep and damage of rock mass.
Lei Fan, Weijun Wang, Chao Yuan, Wenqing Peng   +3 more
doaj   +1 more source