Results 1 to 10 of about 201,664 (243)

Strong Deformation Effects in Hot Rotating 46Ti [PDF]

open access: yes, 2006
Exotic-deformation effects in 46Ti nucleus were investigated by analysing the high-energy gamma-ray and the alpha-particle energy spectra. One of the experiments was performed using the charged-particle multi-detector array ICARE together with a large ...
Beck, C.   +24 more
core   +7 more sources

Hot deformation behaviour of sintered cobalt

open access: yesJournal of Materials Research and Technology, 2023
Hot deformation of sintered cobalt during hot compression testing was investigated in the temperature range of 700–1000 °C and at strain rates ranging from 0.0005 to 0.1 s-1. Cobalt underwent considerable dynamic recrystallization (DRX) during hot deformation, with stress-strain flow curves exhibiting one or several peaks followed by significant flow ...
Collado Ciprés, Verónica   +3 more
openaire   +3 more sources

Micro-scale strain distribution in hot-worked duplex stainless steel [PDF]

open access: yes, 2005
A modified microgrid technique has been applied to a laboratory-made duplex stainless steel, to experimentally simulate the local state of deformation of the austenite-ferrite microstructure of low-alloy steels subject to intercritical deformation.
Allais   +7 more
core   +2 more sources

Deformation Theory of Hot-Pressing [PDF]

open access: yesJournal of Applied Physics, 1967
The possible deformation behavior of spheres in a compact has been both theoretically analyzed and experimentally verified. The change in contact area radius a relative to the particle radius R has been related to the bulk density and bulk strain for four possible modes of packing: simple cubic (Z=6), orthorhombic (Z=8), rhombohedral (Z=12), and body ...
Ashok K. Kakar, A. C. D. Chaklader
openaire   +2 more sources

Development of the Metal Rheology Model of High-temperature Deformation for Modeling by Finite Element Method [PDF]

open access: yes, 2019
It is shown that when modeling the processes of forging and stamping, it is necessary to take into account not only the hardening of the material, but also softening, which occurs during hot processing.
Aliieva, L. (Leila)   +3 more
core   +2 more sources

New approach for modelling strain induced precipitation of Nb(C,N) in HSLA steels during multipass hot deformation in austenite [PDF]

open access: yes, 2009
A new model for strain induced precipitation of Nb(C,N) is developed from the existing model for single pass hot deformation. This new model can be extended to multipass deformation to explain the microstructural evolution during the hot deformation of ...
Nagarajan, V.   +2 more
core   +2 more sources

Dynamic recrystallization mechanisms and twining evolution during hot deformation of Inconel 718 [PDF]

open access: yes, 2016
The hot deformation behavior of an IN718 superalloy was studied by isothermal compression tests under the deformation temperature range of 950–1100 °C and strain rate range of 0.001–1 s-1 up to true strains of 0.05, 0.2, 0.4 and 0.7.
Aghaie-Khafri, M.   +3 more
core   +2 more sources

Constitutive relationships for hot deformation of austenite

open access: yesActa Materialia, 2011
Constitutive equations were used to derive the flow stress of a 17–4 PH stainless steel during hot compression testing. Two general methods were used: (i) a conventional method of finding apparent materials constants; and (ii) a physically based approach which accounts for the dependence of the Young’s modulus and the self-diffusion ...
Abbas Najafizadeh   +3 more
openaire   +4 more sources

The hot-deformability and quantitative description of the microstructure of hot-deformed Fe–Ni superalloy

open access: yesIOP Conference Series: Materials Science and Engineering, 2011
The paper presents the results of research concerning the influence of hot plastic forming parameters on the deformability and structure of a Fe-Ni austenitic alloy. The research was performed on a torsion plastometer in the range of temperatures of 900-1150 °C, at a strain rate 0.1 and 1.0 s-1. Plastic properties of the alloy were characterized by the
K. J. Ducki, Kinga Rodak
openaire   +2 more sources

Study of hot deformation behavior of CuFe2 alloy [PDF]

open access: yes, 2019
Nil strength temperature of 1062 degrees C and nil ductility temperature of 1040 degrees C were experimentally set for CuFe2 alloy. The highest formability at approx. 1020 degrees C is unusable due to massive grain coarsening.
Hadasik, Eugeniusz   +7 more
core   +1 more source

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