recrystallization energy storage
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Recrystallization mechanisms and microstructure development …
in a higher deformation energy storage (Fig. 1). Materials variables such as melting point, alloying, ... Stored energy and recrystallization kinetics of ultrafine grained titanium processed by severe plastic deformation Physica B, 417 (2013), pp. 33-38 ...
يتعلم أكثرThe effect of nucleation models on dynamic recrystallization I.
The response of the material to hot deformation is simulated by adding recrystallization nuclei and stored energy continuously with time. The simulations use …
يتعلم أكثرMicrostructure evolution of 7085 aluminum alloy with different initial deformation energy storage …
Relative low stored energy will make the driving force of recrystallization small, which thus slows down the process of recrystallization. Meanwhile, during solid solution treatment, increasing heating rate induces recrystallization, which will greatly weaken dislocations and reduce the low-angle grain boundary, ultimately …
يتعلم أكثرMicrostructure evolution and dynamic recrystallization …
This is explained by the high temperature and adequate strain storage energy, which led to improved DDRX development, lower KAM value, and uniform growth of DRX grains. And it can be shown from Fig. 14 d1 and e that a notably increased number of DDRX grains nucleated can be detected in Fig. 14 e in parts of the same area.
يتعلم أكثرRecrystallization mechanisms and microstructure development in …
Recrystallization refers to groups of processes which can manifest stress relaxation to varied extents in a deformed metal by releasing the stored energy …
يتعلم أكثرCombined crystal plasticity and phase-field method for recrystallization …
The stored energy introduced during deformation by dislocations has to be estimated well in order to create the starting conditions for a subgrain-based simulation of recrystallization. The deformation process has to be considered, because the stored energy is strongly related to the recrystallization characteristics, such as subgrain …
يتعلم أكثرDynamic recrystallization behavior and strengthening mechanism …
Increasing the recrystallization temperature to achieve better high-temperature performance is critical in the development of molybdenum alloys for ultrahigh-temperature applications, such as the newest generation of multitype high-temperature nuclear reactors. In this study, an innovative strategy was proposed to improve the …
يتعلم أكثرEffect of stored energy and recovery on the overall …
Range 1 is associated to the recrystallization of high stored energy regions mostly belonging to the γ-fiber and Range 2 to the progression of recrystallization mainly through low stored energy α-fiber grains.
يتعلم أكثرThe effect of nucleation models on dynamic recrystallization II. Heterogeneous stored-energy …
An energy-storage-rate schedule was used to model both work hardening and dynamic recovery of metals by way of a stage III work-hardening law. The novel approach taken in this paper was to model a non-uniform deformation substructure by using a mean cell size L and a mean distance R between cell-wall dislocations.
يتعلم أكثرRecovery and Recrystallization
Recovery usually occurs at a lower temperature, and recrystallization of the matrix and grain growth occur at a higher temperature. Through recovery and recrystallization, the …
يتعلم أكثر(PDF) Recrystallization Mechanisms and Microstructure …
Basically, deformation processing and material factors such as stress accumulation, inhomogeneous strain distribution, stored energy, available slip systems, phase composition, microstructural...
يتعلم أكثرCharacterization of ice recrystallization in ice cream during storage …
There are several recrystallization mechanisms but the process is always a result of a minimization of surface free energy of the entire crystal phase and of an equalization of the chemical potential among all phase (Hartel, 1998, Hagiwara et al., 2006).
يتعلم أكثرLocal boundary migration during recrystallization in pure …
The stop–go motion of the recrystallization boundaries is also discussed and related to the formation of protrusions and retrusions. KW - Materials and energy storage KW - Light strong materials for energy purposes KW - Lette stærke materialer til energiformål
يتعلم أكثرDynamic recrystallization behavior and mechanism of …
A newly designed Fe–Cr–Ni–Mn–Mo–N low magnetic stainless steel was tested based on hot deformation at 950–1150 °C and 0.01–10 s−1 strain rate conditions. The flow curves of the hot deformation process are of dynamic recrystallization type, the softening mechanism is mainly dynamic recrystallization. Complete dynamic …
يتعلم أكثر57 Fe Mössbauer Spectroscopy and X-ray Diffraction of Annealed Highly Metamict Perrierite: Activation Energy and Recrystallization …
This paper presents the results of 57Fe Mössbauer spectroscopy and X-ray diffraction analysis of highly metamict perrierite (REE,Ca,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22 after annealing in argon from 673 to 1273 K for one hour. Radioactive elements in metamict minerals damage crystal structure on …
يتعلم أكثرResearch on energy dissipation and dynamic recrystallization …
The microstructure evolution mechanism and dynamic recrystallization mechanism induced by energy changes during the dynamic recrystallization process were clarified. This study provides a theoretical basis for the hot-forming process parameters formulation and optimization of difficult-to-machine NiTi alloy.
يتعلم أكثر(PDF) Stored Energy and Recrystallization Process
Stored energy plays a crucial role in recrystallization process. One can distinguish two contributions to this energy. The first one is the elastic energy, connected with residual stresses, i.e ...
يتعلم أكثرA physically based model of the effect of recovery and clustering …
The effect of recovery on the recrystallization kinetics is studied in terms of the parameters governing initial stored energy and the decay rate. The model predicts …
يتعلم أكثرRecovery, Recrystallization and Grain Growth | SpringerLink
This last process has, confusingly, also been called secondary recrystallization, as compared to the primary recrystallization discussed in Sect. 11.2 where the driving force is the decrease of stored strain energy. 11.3.1 The Grain-Boundary Network; on Grain
يتعلم أكثرA model for releasing of stored energy and microstructure …
The simulation results show that the grain growth of a cold deformed alloy in the annealing process indicates automatically two stages: recrystallization driven by the restored …
يتعلم أكثر(PDF) Stored Energy and Recrystallization Process
Stored energy plays a crucial role in recrystallization process. One can distinguish two contributions to this energy. The first one is the elastic energy, connected with residual...
يتعلم أكثرDynamic Recrystallization and its Effect on Microstructure and …
This stored energy of the microstructure may be lowered by recovery, recrystallization and grain growth (Humphreys and Hatherly, 2004). During recovery, the stored energy of the material is lowered by the removal of point defects, and annihilation and rearrangement of dislocations into lower energy configurations by glide, climb and …
يتعلم أكثرRecrystallization of ice during bulk storage of ice cream
Storage temperatures between −15 and −5 °C were studied. Recrystallization rate increased with storage temperature and extent of temperature fluctuations. Within a single container, mean ice crystal size grew significantly larger in ice cream at the outside wall than near the core of the package. Recrystallization rates …
يتعلم أكثرRecrystallization behavior and kinetic analysis of an Al-Cu-Li alloy …
SRX occurs when both the deformation energy storage and temperature condition are satisfied [15]. In the realm of Al-Cu-Li alloys, there has been limited research conducted on their recrystallization behavior due to the relatively short development period.
يتعلم أكثرAdvanced phase change composite by thermally annealed defect-free graphene for thermal energy storage …
Organic phase change materials (PCMs) have been utilized as latent heat energy storage and release media for effective thermal management. A major challenge exists for organic PCMs in which their low thermal conductivity leads to a slow transient temperature response and reduced heat transfer effici …
يتعلم أكثرMicrostructure evolution and dynamic recrystallization mechanism during thermal deformation …
The microstructure evolution of GH4698 nickel-based superalloy was studied over a temperature range of 1000–1200 °C, a strain rate range of 0.01–1 s−1 and a strain range of 0.1–0.9 by uniaxial thermal compression. The dynamic recrystallization (DRX) behaviour and nucleation mechanism were characterized by electron …
يتعلم أكثرOn the role of selective nucleation and growth to recrystallization …
Given the important contribution of double-twin band recrystallization to the final recrystallization texture, this type of recrystallization nucleation was further investigated via quasi-in situ EBSD on a deformed sample, annealed at 400 for different annealing times
يتعلم أكثرRoles of Silicon Content and Normalization …
In order to decrease the difficulty of cold workability and study the recrystallization behavior of high-grade non-oriented silicon steel, Si content and normalization temperature were optimized …
يتعلم أكثرA physically based model of the effect of recovery and clustering on recrystallization kinetics | Journal of Materials Science
The classical JMAK model of recrystallization kinetics has been widely used to describe the growth of randomly distributed nuclei under constant driving force. These conditions are not satisfied in many systems. The driving force for growth generally varies with time, and the nuclei are usually not uniformly distributed. In this paper, we …
يتعلم أكثرThermo-mechanics Driven Dynamic Recrystallization Behavior …
When the strain rate exceeds 1 s −1, P-DRX is stimulated by high dislocation density and strain energy storage caused by high-speed deformation, which results consequently in a higher DRX fraction. In addition, there exist main variants and variant pairs in the elongated prior austenite grains because the activated slip surface …
يتعلم أكثرThe dynamic recrystallization microstructure characteristics and …
Nucleation and growth of recrystallization grains require energy, and activation energy is the primary driving force for grain boundary rotation and slip. …
يتعلم أكثرCharacterization of ice recrystallization in ice cream during storage using the focused beam reflectance measurement …
Recrystallization rates increased with storage duration, but there appeared to reach a plateau after 120 days of storage for both ice creams regardless the formulation. FBRM has also succeeded to show the significant difference in recrystallization rates according to the formulation, especially the type of stabilizer.
يتعلم أكثرInfinitesimal sulfur fusion yields quasi-metallic bulk silicon for stable and fast energy storage …
C.M.W. thank the support of the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the U. S. Department of Energy under Contract No. DE-AC02 ...
يتعلم أكثرA novel method to study recrystallization behavior: Continuous heating stress relaxation …
However, when the recrystallization storage energy and latent heat of phase transformation release occurred simultaneously, the change of the heat flow curve is not obvious because of the energy offset. As a result, it is difficult to determine the recrystallization 15 ...
يتعلم أكثرSynthesis and properties of nanoencapsulated D-mannitol for medium temperature thermal energy storage …
The phase change and energy storage performance of the NEDMs were improved compared to those in Ref. [19], possibly due to the recrystallization process used in the present study which improved both the encapsulation and nucleation ability of DM.
يتعلم أكثرMicrostructural evolution, recovery and recrystallization kinetics of …
The increasing of recrystallization fraction decreases driving force and/or mobility of grain boundaries, resulting in the rise of activation energy. The values of the …
يتعلم أكثرNew understanding of static recrystallization from phase-field …
Abstract. Phase-field (PF) simulations have emerged as a powerful tool for understanding recrystallization phenomena. While numerous factors could simultaneously influence the recrystallization processes of deformed microstructures in experiments, PF simulations allow one to isolate the contribution of each factor and mesoscale …
يتعلم أكثرContinuous recrystallization in austenitic stainless steel after …
This article presents a study of continuous recrystallization in austenitic stainless steel after large strain deformation, using electron backscatter diffraction and transmission electron microscopy. The results show that the recrystallization mechanism, texture evolution and grain boundary characteristics depend on the deformation …
يتعلم أكثرAmbient dissolution–recrystallization towards large-scale preparation of V2O5 nanobelts for high-energy …
DOI: 10.1016/J.NANOEN.2016.03.001 Corpus ID: 101145083 Ambient dissolution–recrystallization towards large-scale preparation of V2O5 nanobelts for high-energy battery applications @article{Rui2016AmbientDT, title={Ambient dissolution–recrystallization ...
يتعلم أكثرElectrode materials with tailored facets for electrochemical energy storage …
In recent years, the design and morphological control of crystals with tailored facets have become hot spots in the field of electrochemical energy storage devices. For electrode materials, morphologies play important roles in their activities because their shapes determine how many facets of specific orientation are exposed and therefore available …
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