Special Issue "Crystal Plasticity"
Deadline for manuscript submissions: 15 August 2020.
Interests: severe plastic deformation; plasticity; materials strengthening; solid/liquid interfacial phenomena; high temperature materials; intermetallics
Special Issues and Collections in MDPI journals
The term of “Crystal Plasticity” builds a bridge between pure crystallography, materials science, and industrial processing of commonly applied materials pieces (sheets, plates, wires, etc.).
As materials scientists and technologists working in the field of (poly)crystals plasticity, we all tend to provide valuable quantitative and qualitative indicators that describe the process→(crystalline) structure→properties relationship. Generally, our efforts are focused on recognizing possible ways to improve materials’ behavior under predicted operational conditions and applied mechanical and/or thermal external loadings. However, we all know that this goal can be achieved only by having well-established knowledge on crystal structure evolution regarding mechanical and plastic deformation processing.
Nowadays, the research on crystal plasticity-related phenomena is of high practical importance in the view of the following:
- The on-going progress in conventional fabrication techniques (as a forging or a cold rolling processes);
- The design of new processing methods (e.g., various complex severe plastic deformation techniques);
- The development of novel materials (e.g., high-entropy alloys, intermetallics, bulk metallic glasses, ultra-finegrained alloys, nano-steel, etc.).
In this regard, this Special Issue is especially dedicated to theoretical and experimental research works providing new insights and practical findings in the field of crystal plasticity-related topics. Potential papers include but are not limited to the following subjects, covering processing of modern functional and structural materials:
- Dislocation theory;
- Crystal lattice phase transformations and atomic reordering;
- Materials strengthening;
- Crystallographic texture changes;
- Materials processing;
- Microstructure evolution.
Dr. Wojciech Polkowski
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Crystals is an international peer-reviewed open access monthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- Crystallographic texture
- Severe plastic deformation
- Cold/hot plastic deformation processing
- Metals and alloys
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Effect of various strain on transformation diagrams of 100Cr6 steel
Authors: R.K.; I.S.
Abstract: Based on dilatometric tests, the effect of various values of the previous deformation on the kinetics of austenite transformations during the cooling of 100Cr6 steel has been studied. Dilatometric tests have been performed with the use of the optical dilatometric module of the plastometer Gleeble 3800. The obtained results were confronted with the metallographic analyses and hardness measurements HV30. Uniaxial compression deformations were being chosen as follows: 0, 0.35 and 1; note, these are true (logarithmic) deformations. The high fineness of microstructure of this material after all cooling and deformation modes was the main discovery. Another important finding was the absence of bainite. In addition, it has been verified that with the increasing amount of deformation, there is a further shift of the pearlitic region to higher cooling rates. The previous deformation also affected the temperature martensite start, which decreased due to deformation. The deformation value of 1 also shifted the critical cooling rate required for martensite formation from the 12 °C/s to 25 °C/s.
Title: Modeling the local deformation and transformation behavior of cast X8CrMnNi16-6-6 TRIP steel and 10% Mg-PSZ composite using continuum mechanics-based crystal plasticity model
Authors: F. Q.; S. G.; M. S.; R. K.; U. P.
Affiliation: Institute of Metal Forming, Technische Universität Bergakademie Freiberg, Germany.
Abstract: TRIP steel matrix reinforced with Mg-partially stabilized zirconia (PSZ) particles depicts superior energy absorbing capacity during deformation. In this research, the TRIP/TWIP material model already developed in the framework of DAMASK is tuned for X8CrMnNi16-6-6 TRIP steel and 10% Mg-PSZ composite. A new method is explained to more accurately tune this material model by comparing stress/strain, transformation, twinning, and dislocation glide obtained from simulations with respective experimental acoustic emission measurements. The optimized model with slight modification is assigned to the steel matrix in 10% Mg-PSZ composite matrix. In the simulation model, ZrO2 particles are assigned isotropic elastic properties with perfect ceramic/matrix interface. Local deformation, transformation, and twinning behavior of the steel matrix due to quasi-static tensile load were analyzed. The comparison of simulation results with acoustic emission data shows good correlation and helps correlate acoustic events with physical attributes. The tuned material models are used to run full phase simulations using 2D EBSD data from steel and 10% Mg-partially-stabilized ZrO2 composites. Form these simulations, dislocation glide, martensitic transformation, stress evolution, and dislocation pinning in different stages of deformation are discussed for steel matrix and ceramic inclusions.
Title: Structure and phase changes in heat-temperature alloy on Ni-Al-Cr base at alloying by rhenium and lanthanum
Authors: N.A. Koneva; E.L. Nikonenko; N.A. Popova
Abstract: The study of structure and phase composition changes in heat-temperature alloy on Ni-Al-Cr base at alloying by rhenium and lanthanum was carried out by transmission and scanning electron microscopy methods. The alloy is obtained by directional solidification method. It is established that alloying of Re and La result in formation of new phases and modifications of microstructure of gamma'-phase.
Title: Investigation of the high-temperature macro-shear band localization of Ni3Ge single crystals by EBSD and synchrotron XRD
Authors: S. V. Starenchenko; Yu.V. Solov'eva; V. A. Starenchenko; A. I. Ancharov; A. N. Solov'ev
Abstract: The present study concerns the impressive phenomenon of plastic deformation of Ni3Ge single crystals with the L12 structure — high-temperature macro-shear band localization. Single crystals of certain orientations (close or coinciding with the  direction) when the testing temperature exceed 0.6 Tm are deformed with the formation of macro-shear bands. The peculiarity of this phenomenon is that after the formation of bands passing through the entire crystal the deformation is completely localized inside the band, stopping in the remaining volume of the crystal. The paper presents the new experimental results of structural transformations inside the macro-shear bands obtained using the electron backscatter diffraction (EBSD) and synchrotron X-ray diffraction (XRD) methods.
Title: Improvement of crystal plasticity simulations considering the correlation between grain size and crystallographic orientation: application to AISI 420 stainless steel
Authors: Jesus Galan Lopez; Javier Hidalgo Garcia
Affiliation: Technische Universiteit Delft
Abstract: Crystal plasticity models attempt to reproduce the complex deformation processes of polycrystalline metals based on a virtual representation of the real microstructure. When choosing this representation, a compromise must be made between level of detail at the local level and statistical significance of the aggregate properties, also taking into account the computational cost of each solution. In this work, the correlation between crystallographic orientation and grain size is considered in the definition of virtual microstructures for the simulation of the mechanical behaviour of AISI 420 stainless steel (consisting of a ferrite matrix with a large carbide precipitates), in order to improve the accuracy of the solution without increasing model complexity or computation time. Both full-field (DAMASK) and mean-field models (VPSC) are used together in combination with experimental results to study the validity of the assumptions done in each of the models.
Title: Mechanical and thermal properties of low-density Al20+xCr20-xMo20-yTi20V20+y alloy
Authors: Uttam Bhandari; Congyan Zhang; Shizhong Yang
Affiliation: Department of Computer Science, Southern University and A&M College, Baton Rouge, Louisiana, 70813, USA
Abstract: Refractory high entropy alloys (RHEAs) Al20+xCr20-xMo20-yTi20V20+y ((x, y) = (0, 0), (0, 10), and (10, 15)) were computationally studied to get a low density and better mechanical properties. Density functional theory (DFT) method was employed to compute the structural and mechanical properties of alloys, based on a large unit cell model of randomly distributed elements. Debye-Grüneisen theory was used to study the thermal properties of Al20+xCr20-xMo20-yTi20V20+y. Thermal dynamic phase calculation shows all three RHEAs have single body-centered cubic (BCC) structure at high temperature 1000 ~ 2000 K. The RHEA Al30Cr10Mo5Ti20V35 has shown a low density of 5.16 gm/cm3 and hardness of 5.56 GPa. The studied RHEAs could be potential candidates for high-temperature application materials where high hardness, ductile, and low-density are required.