Results 31 to 40 of about 130,811 (329)

Hot Deformation Behavior of PM Ni with Harmonic Microstructure [PDF]

open access: yesMetals, 2022
The hot deformation behavior of a harmonic-structured pure nickel has been studied and compared with the hot deformability of a homogeneously structured nickel. Both materials were produced via the powder metallurgy route through the Spark Plasma Sintering (SPS) of mechanical milled and un-milled powders.
Cinzia Menapace   +2 more
openaire   +3 more sources

Hot deformation behavior and processing maps of Cr20Ni80 electrothermal alloy

open access: yes工程科学学报, 2015
To solve the problem of forging cracks,the hot deformation behavior of Cr20Ni80 electrothermal alloy was investigated by compression tests on a Gleeble-1500 D thermal simulation machine in a temperature range of 900 to 1220℃ and a strain rate of 0.001 to
LI Ya-min, GONG Nai-guo
doaj   +1 more source

Hot Deformation Behavior and Processing Map of GH901 Superalloy [PDF]

open access: yesMetals, 2021
During the forging process GH901 superalloys easily produce cracks and defects, such as coarse crystals in tissues, which affect the performance of the alloy. Using GH901 nickel-based alloy, high-temperature compression tests at deformation temperatures of 990, 1040, 1090 and 1140 °C were carried out in a Thermecmastor-Z thermal simulator, with strain ...
Rui Ma   +4 more
openaire   +2 more sources

Hot tensile fracture characteristics and constitutive modelling of polyether-ether-ketone (PEEK) [PDF]

open access: yes, 2017
The effects of strain rate and deformation temperature on the deformation behaviors of polyether-ether-ketone (PEEK) were studied by uniaxial tensile tests with the temperature range of 23–150 °C and strain rate of 0.01–1 s−1.
Alberola   +40 more
core   +2 more sources

Review on modeling and simulation of dynamic recrystallization of martensitic stainless steels during bulk hot deformation

open access: yesJournal of Materials Research and Technology, 2022
Bulk hot deformation is a relatively old manufacturing technique widely adopted in different industry fields to form and shape different metallic alloys. Martensitic stainless steels (MSS) are a class of metals used in industries with extreme conditions.
Hamed Aghajani Derazkola   +3 more
doaj  

Hot workability of nanocrystalline AZ91 magnesium alloy [PDF]

open access: yes, 2014
This study examined the hot deformation behavior and workability characteristics of nanocrystalline AZ91 Mg alloy by performing hot compression tests with a Gleeble-3800 machine.
Jabbari Taleghani, Mohammad Ali   +1 more
core   +1 more source

Hot deformation behaviors and microstructure evolution of Mg–Si–Sr alloy

open access: yesMaterials Research Express, 2020
The hot deformation behavior and microstructural evolution of as-extruded Mg-0.55 wt.%Si-0.75 wt.%Sr alloys at 250 °C with the compressive strain rate of 1 s ^−1 , 0.1 s ^−1 , 0.01 s ^−1 and 0.001 s ^−1 were investigated via electron backscatter ...
Lei Zhang   +4 more
doaj   +1 more source

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

Application of Friction Shear Test for Constitutive Modeling Evaluation of Magnesium Alloy AZ31B at high Temperature [PDF]

open access: yes, 2020
The experimental determination of the flow stress and its mathematical formulation are essential for the numerical simulation of metal forming processes.
Gensch, Felix   +2 more
core   +1 more source

Flow stress and hot deformation activation energy of 6082 aluminium alloy influenced by initial structural state [PDF]

open access: yes, 2019
Stress-strain curves of the EN AW 6082 aluminium alloy with 1.2 Si-0.51 Mg-0.75 Mn (wt.%) were determined by the uniaxial compression tests at temperatures of 450-550 degrees C with a strain rate of 0.5-10 s(-1).
Kawulok, Petr   +5 more
core   +1 more source

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