Exploració per tema "Dynamic recrystallization"
Ara es mostren els items 1-11 de 11
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A simple constitutive model for predicting flow stress of medium carbon microalloyed steel during hot deformation
(2015-07-15)
Article
Accés obertThe constitutive behavior of a medium carbon microalloyed steel during hot working over a wide range of temperatures and strain rates was studied using the Johnson-Cook (JC) model, the Hollomon equation, and their ... -
A simple physically-based Zerilli-Armstrong constitutive equation for modeling and prediction of hot deformation flow curves
(2016-03)
Article
Accés obertGenerally, the dislocation-mechanics-based constitutive relations are applicable at high strain rates and relatively low temperatures. However, for expressing flow stress at elevated temperatures, it is required to account ... -
Aplicación de los mapas de procesado en la optimización de los parámetros de un proceso de conformado en caliente. Parte II. Mapas de procesado de un acero microaleado con un contenido medio de carbono
(1997)
Article
Accés obertEn la I parte de este trabajo, se presentó, a modo de revisión, las características generales del llamado Modelo Dinámico de Materiales mediante el cual se determinan los mapas de procesado. En esta II parte, siguiendo la ... -
Characterization of microstructure and texture of binary Mg-Ce alloy processed by equal channel angular pressing
(2021-11-01)
Article
Accés obertThe characterization of microstructure and texture development of binary Mg-0.3Ce (wt%) after equal-channel angular pressing (ECAP) processing via route Bc at 300 and 350 °C through 4 passes were investigated using electron ... -
Dynamic recovery and dynamic recrystallization competition on a Nb- and N-bearing austenitic stainless steel biomaterial: Influence of strain rate and temperature
(2013-10)
Article
Accés restringit per política de l'editorialThe objective of this study was to investigate the dynamic softening behavior of an austenitic stainless steel with high nitrogen (type ISO 5832-9) through hot torsion tests, in the temperature range of 900–1200 °C and in ... -
Hot deformation behavior, dynamic recrystallization, and physically-based constitutive modeling of plain carbon steels
(2015-04)
Article
Accés obertThe high-temperature deformation behaviors of low and medium carbon steels with respectively 0.06 and 0.5 wt% C were investigated under strain rate and temperature ranges of 10-4–10-1 s-1 and of 900–1100 °C. Three types ... -
Hot working behaviour and processing maps of duplex cast steel
(2021-07-28)
Article
Accés obertIn this paper the hot working behaviour of medium carbon duplex cast steel is studied using uniaxial hot compression tests over a temperature range varying from 700 °C to 1 000 °C and at different strain rates ranging from ... -
Microstructural evolution and constitutive equations of Inconel 718 alloy under quasi-static and quasi-dynamic conditions
(2016-03-15)
Article
Accés obertThe deformation behavior of IN718 superalloy was investigated using the hot compression tests in the temperature range of 950-1100 °C, and strain rates covering the quasi-static to the quasi-dynamic regions (0.001-10 s-1). ... -
Numerical modeling of flow stress and grain evolution of an Mg AZ31B alloy based on hot compression tests
(2020-01)
Article
Accés obertMagnesium alloys offer a wide range of applications in modern lightweight structures, although the correct forming parameters need to be found to reach a good combination of fine microstructure and the required mechanical ... -
Simulación de la fluencia en caliente de un acero microaleado con un contenido medio de carbono. II parte. Recristalización dinámica: inicio y cinética
(1997-06)
Article
Accés obertSiguiendo el planteamiento efectuado en la I parte de este trabajo, en esta II parte se caracteriza la recristalización dinámica de un acero comercial microaleado con un contenido medio de carbono desde el punto de vista ... -
The origin of microstructure inhomogeneity in Mg-3Al-1Zn processed by severe plastic deformation
(2012-08-15)
Article
Accés restringit per política de l'editorialA Mg–3Al–1Zn alloy has been severely deformed by accumulative back extrusion to investigate the effects of processing parameters (temperature and deformation pass) on the microstructure homogeneity. The results indicate ...