Results 261 to 270 of about 51,806 (309)

Significance of Deformation Mode in Hot Deformation

Materials Science Forum, 2000
In order to study strain path effects, hot deformation tests must be carried out utilising different combinations of compressive, tensile and shear strains. However, before the results from these tests can be reliably interpreted, it is important to carry out deformations in simple tension, compression and torsion as a 'baseline'.
S.B. Davenport, Iain Todd, Sybrand van der Zwaag   +2 more
openaire   +1 more source

Hot Deformation Behavior of Hot-Extruded AA7175 Through Hot Torsion Tests

Journal of Nanoscience and Nanotechnology, 2018
The hot deformation behavior of hot-extruded AA7175 was investigated with flow curves and processing maps through hot torsion tests. The flow curves and the deformed microstructures revealed that dynamic recrystallization (DRX) occurred in the hot-extruded AA7175 during hot working. The failure strain was highest at medium temperature.
Se-Yeon, Lee, Taek-Kyun, Jung, Hyeon-Woo, Son, Sang-Wook, Kim, Kwang-Tae, Son, Ho-Joon, Choi, Sang-Ho, Oh, Ji-Woon, Lee, Soong-Keun, Hyun   +8 more
openaire   +2 more sources

Hot-deformation characteristics of Waspaloy

Materials Science and Technology, 1985
AbstractSpecimens of wrought Waspaloy have been reheated to above the γ' solvus temperature and tested in plane-strain compression at constant equivalent tensile strain rates in the range 0.5–50 s−1, and at initial test temperatures in the range 960–1070°C. The majority of tests were conducted with the tools and test environment at 850°C.
D. W. Livesey, C. M. Sellars
openaire   +1 more source

Physical Simulation at Hot Deformation

Materials Science Forum, 2010
Today the numerical simulation of hot deformation processes is very advanced. But it requires mathematical models for metalphysical processes as for microstructure development, which take place during the deformation. Until now such models were developed for many steel grades and non-ferrous materials.
Rudolf Kawalla, Wolfhart Müller, Werner Jungnickel   +2 more
openaire   +1 more source

Hot deformation processing

Materials Science and Technology, 1992
(1992). Hot deformation processing. Materials Science and Technology: Vol. 8, No. 2, pp. 134-134.
openaire   +1 more source

Deformation Behavior of Glass Nanostructures in Hot Embossing

ACS Applied Materials & Interfaces, 2020
In the nanoscale glass formation, the flow and deformation behavior of glass materials are quite different from those in the macroscale because the mold cavity influences the viscous flow behaviors of glass because of the size effect. The knowledge of macroglass molding process no longer applies to the fabrication of glass microparts by hot embossing ...
Kangsen Li, Gang Xu, Xiaohua Liu, Feng Gong   +3 more
openaire   +2 more sources

New hot workability prediction method under non-constant deformation conditions [PDF]

International Journal of Mechanical Sciences
The deformation conditions of metallic materials constantly change during forming and manufacturing technology. The thermomechanical processing theory cannot be applied to non-constant deformation conditions. The hot workability is a manifestation of the
Caiyi Liu, Marco Belfi, Shicheng Liang   +2 more
exaly   +2 more sources

Improved hot workabilrty and magnetic propertms in MdFeCoGaB hot deformed magnets

INTERMAG 2000 Digest of Technical Papers. 2000 IEEE International Magnetics Conference, 2000
The hot workability and the magnetic properties of die-upset and backward extruded melt-spun magnets with the composition of Nd/sub 14.2/Fe/sub 80.8/B/sub 5/ (MQP-A), and Nd/sub 13.6/Fe/sub 73.6/Co/sub 6.6/Ga/sub 0.6/B/sub 5.6/ (MQU-F) have been investigated.
A. Kirchner, D. Hinz, V. Panchanathan, O. Gutfleisch, K.H. Muller, L. Schultz   +5 more
openaire   +1 more source

Modeling and Prediction of Hot Deformation Flow Curves

Metallurgical and Materials Transactions A, 2011
The modeling of hot flow stress and prediction of flow curves for unseen deformation conditions are important in metal-forming processes because any feasible mathematical simulation needs accurate flow description. In the current work, in an attempt to summarize, generalize, and introduce efficient methods, the dynamic recrystallization (DRX) flow ...
Mirzadeh, H., Cabrera Marrero, José M., Najafizadeh, A.   +2 more
openaire   +3 more sources

Deformation mechanisms in hot working

JOM, 1968
1. During deformation at a constant temperature above 0.5Tm, there is a steady-state regime where both stress and strain rate remain constant independent of strain. 2. The interdependence of stress, strain rate and temperature during steady-state hot working and secondary creep are similar. 3.
openaire   +1 more source