Dynamic recrystallization during hot rolling
Web1 day ago · In Ni–Cr 800H Alloy, continuous Cr 23 C 6 at GBs could also restrain the occurrence of dynamic recrystallization during hot–rolling in the temperature range of 850–950 °C [18]. There is no M 23 C 6 at GBs in the raw material in Fig. 1. Therefore, the M 23 C 6 precipitates observed in WebSep 9, 2016 · The possibility of dynamic recrystallization occurring e.g. during rolling means that the process temperature will have an impact on the resulting microstructure. …
Dynamic recrystallization during hot rolling
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WebAug 6, 2024 · In this work, the presence of dynamically formed ferrite above the Ae3 temperature during the physical simulation of hot rolling was presented. This unusual metallurgical process is known as dynamic transformation (DT). The metastable ferrite phase undergoes a reverse transformation when the temperature is held above the Ae3 … WebIt was revealed experimentally that hot rolling with a higher strain is efficient for obtaining the initial microstructure, which has equiaxed fine grains of β-NbTi with the aid of …
WebJul 18, 2013 · Abstract. The background physical metallurgy and the data available on recrystallization and grain growth after hot deformation of low-carbon manganese steel … WebOct 14, 2004 · Abstract. In this study, the kinetics of dynamic recrystallization is predicted under hot rolling conditions employing a first-order rate equation. The proposed model …
WebFeb 28, 2024 · The results revealed that the rolling parameters significantly influence dynamic recrystallization (DRX), while continuous and twin-induced dynamic recrystallization are assumed to be the main DRX mechanisms. ... The resulting textures revealed that the non-basal slip of < a >-dislocations and < c + a >-dislocations is … WebSep 5, 2024 · The control of microstructure during hot rolling process of steel is of great importance and will affect the properties of the steel products. According to the …
WebThe dynamic, static and metadynamic recrystallization behavior of austenitic stainless steel during hot rolling was analyzed. In this approach, each of those recrystallization behaviors is described by appropriate kinetics equations. The critical strain for dynamic recrystallization was determined so that a distinction could be made between static and …
WebSep 9, 2016 · The possibility of dynamic recrystallization occurring e.g. during rolling means that the process temperature will have an impact on the resulting microstructure. A low temperature, which prohibits recrystallization, will yield a harder material, due to high dislocation density, with a pronounced texture. chronic hepatitis c symptoms mayo clinicWebApr 10, 2024 · Study of the recrystallization behaviour of the aluminium 1565ch alloy during hot rolling of the as cast structures. Evgenii Aryshenskii 1, Juergen Hirsch 1,2, … chronic hepatitis c symptomsWebNov 30, 2024 · In order to obtain the kinetics of DRX for specific points in the workpiece during hot rolling, the Beynon–Sellars model for DRX without grain size dependency has been implemented via a USDFLD subroutine. The kinetic of dynamic recrystallization \(X_{DRX}\) is given in Eq. chronic hepatitis panel blood testWebMar 5, 2024 · Dynamic recrystallization (DRX) occurring during hot rolling significantly affects the microstructural evolution and final mechanical properties of steel. In this … chronic hepatitis is usually caused by whatWebJan 1, 1995 · @article{osti_10110106, title = {Modeling recrystallization kinetics during strip rolling}, author = {Sun, W P and Hawbolt, E B and Meadowcroft, T R}, abstractNote = {In order to simulate the microstructural evolution during hot strip rolling, double-hit compression tests have been carried out on plain carbon steels. Using the softening data … chronic hepatitis ultrasound imagesWebMay 21, 2024 · The plastic deformation occurs in steels during metal forming processing such as rolling, forging, high-pressure torsion, etc. which modify mechanical properties of materials through the grain refinement, and the shape change of objects. Several phenomena in the scope of plastic deformation, such as hardening, recovery, and … chronic hepatitis definitionWebSep 16, 2024 · A large reduction rolling process was used to obtain complete dynamic recrystallization (DRX) microstructures with fine recrystallization grains. Based on the hyperbolic sinusoidal equation … chronic hepatitis unspecified icd 10