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Journal articles on the topic 'Deformation phase'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

Sundeev, R. V., A. M. Glezer, and A. V. Shalimova. "Phase Transformations «Amorphization ↔ Crystallization» In Metallic Materials Induced by Severe Plastic Deformation." REVIEWS ON ADVANCED MATERIALS SCIENCE 54, no. 1 (2018): 93–105. http://dx.doi.org/10.1515/rams-2018-0021.

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Abstract In this review we are considered systematically the phenomenon of deformation-induced phase transformations from crystalline intermetallic compounds and complex phases to amorphous state and vice versa phase transformations from amorphous state to crystalline one upon severe plastic deformation at different temperatures. The nature and structural features of these transitions essentially for high pressure torsion deformation are analyzed in the frame of basic principles of nonequilibrium thermodynamics. The effects of phase cycling and a stationary amorphous - nanocrystalline state fo

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2

Carter, Karen E. "Grenville orogenic affinities in the Red Mountain area, Llano Uplift, Texas." Canadian Journal of Earth Sciences 26, no. 6 (1989): 1124–35. http://dx.doi.org/10.1139/e89-096.

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The Red Mountain area in the southeast corner of the Llano Uplift contains evidence of a Grenville-age, polyphase, non-coaxial deformational history. Four synmetamorphic deformational phases affected the Precambrian Click Formation of the Packsaddle Group, and a single shear-related deformation is observed in the Big Branch and Red Mountain gneisses. The first phase of deformation produced tight folds with an axial–planar metamorphic foliation. The second, and most intense, pervasive deformational phase produced the regional metamorphic layering, isoclinal folds, transposition of bedding, and

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Cui, Ya, Zhi Min Zhang, Jian Min Yu, and Qiang Wang. "Research on Multiple Plastic Deformations of Ultra-High Strength Aluminium Alloy." Advanced Materials Research 652-654 (January 2013): 1132–37. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.1132.

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Research on multipass plastic deformation of 7A04 ultra-high strength aluminium alloy by isothermal compression experiments on the 6300KN extrusion press. Experiment results show that elongation reaches its maximal value 9.25% after the first deformation. It is obvious that fibrous tissues appeared along the metal flow direction in the deformed 7A04 ultra-high aluminium alloy, with heterogeneous distribution of precipitated η (MgZn2) phase in the matrix, which results in lower strength (Rm=335MPa, Re=212.5MPa). As the times of deformation increases, precipitated phases grow gradually and the p

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4

Baidya, Tapan K., Nabakumar Maity, and Parimal Biswas. "Tectonic Phases and Crustal Evolution in a Part of the Eastern Chotanagpur Gneissic Complex." Journal Geological Society of India 34, no. 3 (1989): 318–24. http://dx.doi.org/10.17491/jgsi/1989/340312.

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Abstract The area in and around Jabarban-Belamu (23°25' - 23°29'N, 86° - 86c05'E) of the Purulia district, West Bengal, bears evidences of polyphase deformation, metamorphism and magmatic activity in the eastern Chotanagpur complex. At least four phases of deformation are imprinted on the rocks since the sedimentation ( ∼ 2300 Ma) of the metasedimentaries up to the last phase of granitic activity (∼800 Ma). A regional north-south compression was responsible for the development of isoclinal or tight F1 and F2-foIds with nearly east-west axes and overturning towards south. Ultrametamorphism of t

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Nurdin, N., D. Pujiastuti, and M. Marzuki. "Analysis of vertical seismic deformation of the 2018 Palu earthquake using Global Navigation Satellite System (GNSS) data." Journal of Physics: Conference Series 2596, no. 1 (2023): 012037. http://dx.doi.org/10.1088/1742-6596/2596/1/012037.

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Abstract The vertical seismic deformation of the Palu earthquake magnitude of 7.4 on the Richter Scale, which occurred on September 28, 2018, has been analyzed using InaCORS (Indonesian Continuously Operating Reference Stations) stations. The stations used are CBAL, PALP, CTOL, CMLI, CPAL, and CBIT. The analysis was conducted using GAMIT, GLBOK, and GMT software. The analysis focused on the period of 100 days, starting from August 6, 2018 (DoY 218) to November 28, 2018 (DoY 318), encompassing the preseismic, coseismic, and post-seismic phases. During the preseismic phase (DoY 218-270), the Ina

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Ni, Peishuang, Yanyang Liu, Hao Pei, Haoze Du, Haolin Li, and Gang Xu. "CLISAR-Net: A Deformation-Robust ISAR Image Classification Network Using Contrastive Learning." Remote Sensing 15, no. 1 (2022): 33. http://dx.doi.org/10.3390/rs15010033.

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The inherent unknown deformations of inverse synthetic aperture radar (ISAR) images, such as translation, scaling, and rotation, pose great challenges to space target classification. To achieve high-precision classification for ISAR images, a deformation-robust ISAR image classification network using contrastive learning (CL), i.e., CLISAR-Net, is proposed for deformation ISAR image classification. Unlike traditional supervised learning methods, CLISAR-Net develops a new unsupervised pretraining phase, which means that the method uses a two-phase training strategy to achieve classification. In

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Skorupska, Monika, Mariusz Kulczyk, Piotr Denis, Dominik Grzęda, Anna Czajka, and Joanna Ryszkowska. "Structural Hierarchy of PA6 Macromolecules after Hydrostatic Extrusion." Materials 16, no. 9 (2023): 3435. http://dx.doi.org/10.3390/ma16093435.

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This article presents the influence of severe plastic deformation by hydrostatic extrusion (HE) on the thermal and structural properties of polyamide 6 (PA6). During the hydrostatic extrusion process, a fibrous structure oriented along the extrusion direction is formed, which was visualized during microscopic observations. The degree of crystallinity was analyzed by differential scanning calorimetry (DSC). Wide-angle X-ray scattering diffraction (WAXS) analysis was used to partially characterize the PA6 structure after the HE process. The contents of various forms of the crystalline phase in P

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Huang, Zengshu, Jinping Sun, Qing Li, Weixian Tan, Pingping Huang, and Yaolong Qi. "Time- and Space-Varying Atmospheric Phase Correction in Discontinuous Ground-Based Synthetic Aperture Radar Deformation Monitoring." Sensors 18, no. 11 (2018): 3883. http://dx.doi.org/10.3390/s18113883.

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Ground-based synthetic aperture radar (GB-SAR) uses active microwave remote-sensing observation mode to achieve two-dimensional deformation measurement and deformation trend extraction, which shows great prospects in the field of deformation monitoring. However, in the process of GB-SAR deformation monitoring, the disturbances caused by atmospheric effect cannot be neglected, and the atmospheric phases will seriously affect the precision of deformation monitoring. In discontinuous GB-SAR deformation monitoring mode, the atmospheric phases are particularly affected by changes of time and space,

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Ryś, Janusz, and Anna Zielińska-Lipiec. "Structural Aspects of Ferrite and Austenite Co-Deformation in Duplex Stainless Steel." Solid State Phenomena 203-204 (June 2013): 28–33. http://dx.doi.org/10.4028/www.scientific.net/ssp.203-204.28.

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The present research is a part of project dealing with structural aspects of ferrite and austenite co-deformation in duplex stainless steels. The examination concerned a development of ferrite and austenite microstructures, major deformation mechanisms operating in both phases and texture formation upon cold-rolling of a model duplex type steel. The investigations showed that the band-like morphology of two-phase structure formed upon processing together with specific starting textures obtained after a preliminary thermo-mechanical treatment exerted significant influence on texture and microst

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Bhola, A. M., and S. Varadarajan. "Deformational and Crystallization History of the Delhi Group Rocks, Around Narnaul, Haryana, India." Journal Geological Society of India 26, no. 6 (1985): 380–89. http://dx.doi.org/10.17491/jgsi/1985/260602.

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Abstract The regional metamorphic rocks of Precambrian age belonging to the Delhi Group, around Narnaul, show complex deformational-crystallization history. The first deformation phase, F1 of Delhi orogeny produced isoclinal folds overturned towards southeast plunging in NNE-SSW directions associated with most pervasive foliation S1. The later deformation phases, F2, tight to open folds, and F3, open folds produced crenulation cleavages S2 and S3 (rare). These three deformational events have been correlated with the crystallization periods of the more important minerals in pelitic schists and

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Karumanchi, Siva Ram, Anirban Mandal, and Stanislav Lenart. "Numerical Evaluation of Suction Effects and Groundwater Table Variations on Long-Term Pavement Subgrade Performance." Sustainability 16, no. 21 (2024): 9469. http://dx.doi.org/10.3390/su16219469.

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Over the past few decades, flexible pavements across the globe have seen a significant reduction in their service life due to climate changes. The flexible pavements with unsaturated subgrades undergo volumetric changes during the drying and wetting phases, affecting their long-term deformation behavior. These phases cause significant variations in matric suction and groundwater table depth. This study employs a coupled pore pressure-deformation analysis on flexible pavements to investigate the impact of groundwater table depth and suction variations in unsaturated subgrades. Finite-element si

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Fashanu, T. A., A. T. Adebusoye, A. A. Oyediran, and O. O. Adewumi. "Dynamic analysis of the large strain deformation of flexible pipes conveying two-phase fluids. Part II: nonlinear vibration analysis." Nigerian Journal of Technology 42, no. 1 (2023): 130–35. http://dx.doi.org/10.4314/njt.v42i1.16.

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This work presents the nonlinear analysis of the dynamics of large strain deformation of subsea flowlines and jumpers conveying two-phase fluid. Precisely, flexible pipes operating in the stated condition undergo large strain deformations. Thus, the known nonlinear deterministic model of the system is solved using method of discretized perturbation. Precisely, this study obtained the nonlinear natural frequency of simply supported flexible pipes modelled using the large strain deformation theory. Results show that both hardening and softening nonlinear behaviors are indicated for pipe undergoi

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Bao, Shun, Han Feng, Zhigang Song, Jianguo He, Xiaohan Wu, and Yang Gu. "Deformation Behavior of S32750 Duplex Stainless Steel Based on In Situ EBSD Technology." Materials 18, no. 9 (2025): 2030. https://doi.org/10.3390/ma18092030.

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In this study, we investigated the two-phase hardening behavior and microstructural evolution of S32750 duplex stainless steel during the tensile deformation process. The analysis was conducted using in situ electron backscatter diffraction (EBSD), scanning electron microscopy (SEM), and microhardness testing. It was observed that strain transfer occurred between the two phases in the position away from the fracture. The ferrite phase exhibited softening, while the austenite phase underwent hardening. In the region less than 1 mm from the fracture site, both phases experienced a rapid hardenin

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14

Hall, Ernest L., and James D. Livingston. "Deformation modes in Laves phase intermetallics." Proceedings, annual meeting, Electron Microscopy Society of America 47 (August 6, 1989): 318–19. http://dx.doi.org/10.1017/s0424820100153567.

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There is at present a large amount of interest in the mechanical behavior of intermetallic alloys, and one of the largest classes of these alloys are the Laves phases. There are three basic types of Laves phases: cubic (C15), hexagonal (C14), and dihexagonal (C36), with stacking sequences on the close-packed planes of ABCABC..., ABAB..., and ABAC..., respectively, where each capital letter represents an interpenetrating four-atomic-layer unit. This structural complexity gives rise to a special mode of deformation for Laves phases, called synchroshear, which requires the cooperative movement of

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15

Pereloma, Elena, and Ilana Timokhina. "Deformation-Induced Phase Transformations." Metals 8, no. 11 (2018): 886. http://dx.doi.org/10.3390/met8110886.

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16

Wang, Yanju, Zhao Zhang, Xinhao Wang, Yanfeng Yang, Xiang Lan, and Heng Li. "Crystal Plasticity Finite Element Modeling on High Temperature Low Cycle Fatigue of Ti2AlNb Alloy." Applied Sciences 13, no. 2 (2023): 706. http://dx.doi.org/10.3390/app13020706.

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Ti2AlNb alloy is a three-phase alloy, which consists of O phase, β phase and α2 phase. Because of the difference in the mechanical characteristics between phases, Ti2AlNb alloy often exhibits deformation heterogeneity. Based on EBSD images of the Ti2AlNb alloy, a crystal plasticity finite element model (CPFEM) was built to study the effects of O phase and β phase (dominant phases) on stress and strain distribution. Four types of fatigue experiments, and the Chaboche model with 1.2%~1.6% total strain range were conducted to verify the CPFEM. The simulation results showed that the phase boundary

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17

Wang, Zhihong, Huayang Dai, Yueguan Yan, Jintong Ren, Yanjun Zhang, and Jibo Liu. "An InSAR Deformation Phase Retrieval Method Combined with Reference Phase in Mining Areas." Remote Sensing 15, no. 18 (2023): 4573. http://dx.doi.org/10.3390/rs15184573.

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The acquisition of precise deformation data, including the entirety of the subsidence basin resulting from subterranean mining operations, assumes critical significance in the context of surface impairment monitoring during the course of mining activities. In light of the constraints associated with InSAR technology when applied to the surveillance of expansive deformation gradient mining regions, an innovative approach is advanced herein for InSAR deformation phase retrieval. This approach integrates a reference phase, derivable through a variety of means, including pre-existing models or mea

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18

Li, Bing, Qianqian Fu, Rongzhou Yu, et al. "Two-Phase Flow Coordination Characteristics of H62 Brass Alloy Prepared by Up-Drawing Continuous Casting." Metals 13, no. 3 (2023): 599. http://dx.doi.org/10.3390/met13030599.

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In this study, the two-phase flow coordination characteristics between α and β phases of H62 brass made by up-drawing continuous casting are investigated based on the upsetting process. An in situ and new research method for two-phase flow is put forward, and the two-phase flow and grain refinement characteristics are observed under different deformation conditions. The results show that α phase flows fast under 400 °C, β phase is pulled and overridden by α phase under this temperature. When the temperature increases to 500 °C, which is higher than β phase transition temperature, the flow velo

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19

Perez-Payan, Sinuhe, M. Sabido, E. Mena, and C. Yee-Romero. "Analysis of Scalar Field Cosmology with Phase Space Deformations." Advances in High Energy Physics 2014 (2014): 1–5. http://dx.doi.org/10.1155/2014/958137.

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Phase space deformations on scalar field cosmology are studied. The deformation is introduced by modifying the symplectic structure of the minisuperspace variables. The effects of the deformation are studied in the “C-frame” and the “NC-frame.” In order to remove the ambiguities of working on different frames, a new principle is introduced. When we impose that both frames should be physically equivalent, we conclude that the only possibility for this model, is to have an effective cosmological constantΛeff≥0. Finally we bound the parameter space forθandβ.

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Niinomi, Mitsuo. "Enhancement of Mechanical Biocompatibility of Titanium Alloys by Deformation-Induced Transformation." Materials Science Forum 879 (November 2016): 125–30. http://dx.doi.org/10.4028/www.scientific.net/msf.879.125.

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Metastable β-type titanium alloys are highly suitable for use as structural biomaterials applied to hard tissue, i.e., as cortical bone (hereafter, bone) replacing implants. However, their mechanical biocompatibitities, such as the Young’s modulus, strength and ductility balance, fatigue strength, resistance against fatigue crack propagation and fracture toughness, require improvenent for increased compatibility with bone. Through deformation, the metastable β-phase in a metastable β-type titanium alloy is transformed into various phases, such as α’ martensite, α” martensite, and ω-phases with

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Ryś, J., and A. Zielińska-Lipiec. "Deformation of Ferrite-Austenite Banded Structure in Cold-Rolled Duplex Steel / Odkształcenie Pasmowej Struktury Ferrytu I Austenitu W Walcowanej Na Zimno Stali Duplex." Archives of Metallurgy and Materials 57, no. 4 (2012): 1041–53. http://dx.doi.org/10.2478/v10172-012-0116-2.

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Duplex type ferritic-austenitic stainless steels develop a specific two-phase banded structure upon thermo-mechanical pre-treatment and subsequent cold-rolling. The band-like morphology of ferrite and austenite imposes different conditions on plastic deformation of both constituent phases in comparison to one-phase ferritic and austenitic steels. In the present research the ingot of a model ferritic-austenitic steel of duplex type, produced by laboratory melt, was subjected to preliminary thermo-mechanical treatment including forging and solution annealing. Afterwards cold-rolling was conducte

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Ankem, Sreeramamurthy, William J. Joost та Samuel C. Schwarm. "Recent Advances on the Deformation Behavior of Two-Phase α+β Titanium Alloys". Materials Science Forum 950 (квітень 2019): 55–59. http://dx.doi.org/10.4028/www.scientific.net/msf.950.55.

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Two-phase materials, such as α+β Titanium (Ti) alloys, are technologically important. A number of factors can affect deformation behavior, including the interaction stresses between phases, the crystallographic relationships between phases, and the morphology. As a result, the deformation mechanisms of two-phase alloys may be different from the individual single-phase materials. For example, twinning may not occur in a single phase material if the grain size is very small but twinning can occur in a very fine grained alloy if the second phase contributes to the interfacial stresses due to elas

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Costa, Bruno de Siqueira, Carlos Humberto da Silva, and Ana Cláudia Dantas da Costa. "Structural characterization of the internal domain of Paraguai Belt, in the Cangas region, south central portion of Mato Grosso, Brazil." Brazilian Journal of Geology 45, no. 1 (2015): 35–49. http://dx.doi.org/10.1590/23174889201500010003.

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The structural study of rocks in the district of Cangas showed the identification of three phases of deformation for the Cuiabá Group in this region. The main structure oriented 120/27 is related to the first phase of deformation defined by a slate cleavage, parallel to the bedding and to the axial plane of recumbent folds. In the early stages of this phase a family of quartz veins (V1) was generated, arranged parallel to the structures of this phase of deformation, being all almost deformed. The second phase of deformation formed a crenulation cleavage (Sn+1), axial plane of opened to gentle

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Cayzer, Nicola J., Shoko Odake, Ben Harte, and Hiroyuki Kagi. "Plastic deformation of lower mantle diamonds by inclusion phase transformations." European Journal of Mineralogy 20, no. 3 (2008): 333–39. http://dx.doi.org/10.1127/0935-1221/2008/0020-1811.

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Ryś, Janusz, and Małgorzata Witkowska. "Microstructure and Deformation Behavior of Cold-Rolled Super-Duplex Stainless Steel." Solid State Phenomena 163 (June 2010): 151–56. http://dx.doi.org/10.4028/www.scientific.net/ssp.163.151.

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The present examination is a part of project concerning a deformation behavior of duplex type ferritic-austenitic stainless steels. The investigations included the analysis of ferrite and austenite microstructures formed in cold-rolled sheet of super-duplex stainless steel, major deformation mechanisms operating in both constituent phases and changes in morphology of two-phase structure after the thermo-mechanical treatment and subsequent cold-rolling. Duplex type stainless steels develop the band-like ferrite-austenite morphology in the course of hot- and cold-rolling. This specific two-phase

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Chen, Wen, Peng Zhang, Jing Xie, Yang Liu, and Wenxia Zhao. "The Effect of Nb Content on Microstructure Evolution of GH4169 superalloy During Hot Deformation." MATEC Web of Conferences 358 (2022): 01001. http://dx.doi.org/10.1051/matecconf/202235801001.

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This research conducted a thermal compression deformation test on two GH4169 alloy samples with 5.40wt% and 5.21wt% Nb contents respectively, under deformation temperatures ranging from 900°C to 1030°C and the strain rates of 0.04s-1, 0.08s-1. Data from the deformation test were used to study the effects of deformation temperature and strain rate on the microstructure, δ phase morphology, and δ phase evolution of both alloy samples, so as to reveal the structural evolution mechanism. The results show that the long needle-like δ phase in the alloy microstructure with high Nb content undergoes d

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Blinova, Elena N., Alexander M. Glezer, M. A. Libman, and E. V. Pimenov. "Influence of Severe Plastic Deformations on Martensitic Transformation in Alloys of Fe-Cr-Ni System." Key Engineering Materials 910 (February 15, 2022): 802–7. http://dx.doi.org/10.4028/p-3g2085.

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The article investigates influence of large plastic deformations created in the Bridgman anvils on the mechanical properties and microstructure of metastable alloys of the iron-chromium-nickel system of the austenitic-martensitic class. It is found that the application of deformation in the Bridgman anvils with a true logarithmic deformation e = 6-7 leads to formation of the α-phase (deformation martensite) with significantly higher mechanical properties compared to martensite formed during deformation by linear rolling. The authors reveal the differences in the microstructure of the alloy aft

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Kyryliuk, S. F., and G. A. Bagliuk. "Hot deformation of porous blanks of the Al-TiC system." Metaloznavstvo ta obrobka metalìv 30, no. 2 (2024): 16–26. http://dx.doi.org/10.15407/mom2024.02.016.

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The article presents the results of the study of the effect of hot deformation on the structure and phase composition of the synthesized aluminum matrix composite of the Al-TiC system. The nature of the distribution of deformations and relative density over the volume of the porous workpiece during its hot deformation in a semi-closed die was established based on the results of computer simulation. Based on the obtained data, the impact of the stamping scheme on the phase and structure formation during the production of axisymmetric forgings from the dispersion-strengthened alumino-matrix comp

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Li, Kejian, Qiang Zheng, Chunhong Li, et al. "Characterization of Surface Modification of 347 Stainless Steel upon Shot Peening." Scanning 2017 (2017): 1–4. http://dx.doi.org/10.1155/2017/2189614.

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Plastic deformations, such as those obtained by shot peening on specimen surface, are an efficient way to improve the mechanical behavior of metals. Generally, scanning electron microscopy (SEM) and electron backscattered diffraction (EBSD) are commonly used to observe the complex microstructural evolutions, such as grain refinement and phase transformation, induced by the surface treatment. In this work, the microstructure of 347 stainless steel, after ultrasonic shot peening (USP) treatments, was investigated. SEM, EBSD, transmission electron microscopy, and X-ray diffraction were used to ob

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PODIO-GUIDUGLI, PAOLO, and GIORGIO VERGARA CAFFARELLI. "EQUILIBRIUM PHASES AND LAYERED PHASE MIXTURES IN ELASTICITY." Mathematical Models and Methods in Applied Sciences 02, no. 02 (1992): 143–66. http://dx.doi.org/10.1142/s0218202592000107.

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In this paper an equilibrium phase is a restriction of a piecewise-affine deformation of a body to a (maximal, connected) subbody whose deformation is affine; a layered phase mixture is a continuous deformation that admits at least two distinct phases, separated by a plane interface. We study equilibrium phases and layered phase mixtures in the context of finite elasticity, in the presence of three different boundary conditions of traction: uniform pressure, and two other of null Lagrangians. In Part I we reduce to a unique format the stationarity condition for the existence of equilibrium pha

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Abrosimova, Galina, Boris Gnesin, Dmitry Gunderov, et al. "Devitrification of Zr55Cu30Al15Ni5Bulk Metallic Glass under Heating and HPT Deformation." Metals 10, no. 10 (2020): 1329. http://dx.doi.org/10.3390/met10101329.

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The nanocrystal formation in Zr55Cu30Al15Ni5 bulk metallic glass was studied under heat treatment and deformation. The activation energy of crystallization under heating is 278 kJ/mol. Different crystalline phases were found to be formed during crystallization under heating and deformation. At the first crystallization stage, the metastable phase with a hexagonal structure (lattice of space group P63/mmc with the parameters a = 8.66 Å, c = 14.99 Å) is formed under heat treatment. When the temperature rises, the metastable phase decays with the formation of stable crystalline phases. The crysta

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Gusev, Alexander. "Phase Transition at the Metric Elastic Universe." Symposium - International Astronomical Union 168 (1996): 569–70. http://dx.doi.org/10.1017/s007418090011071x.

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At the last time the concept of the curved space-time as the some medium with stress tensor σαβon the right part of Einstein equation is extensively studied in the frame of the Sakharov - Wheeler metric elasticity(Sakharov (1967), Wheeler (1970)). The physical cosmology pre- dicts a different phase transitions (Linde (1990), Guth (1991)). In the frame of Relativistic Theory of Finite Deformations (RTFD) (Gusev (1986)) the transition from the initial stateof the Universe (Minkowskian's vacuum, quasi-vacuum(Gliner (1965), Zel'dovich (1968)) to the final stateof the Universe(Friedmann space, de S

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Despax, Laurie, Vanessa Vidal, Denis Delagnes, Moukrane Dehmas, Hiroaki Matsumoto, and Vincent Velay. "Mechanical behaviour and microstructural evolution in fine grain Ti-6Al-4V alloy under superplastic conditions." MATEC Web of Conferences 321 (2020): 11011. http://dx.doi.org/10.1051/matecconf/202032111011.

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Ti-6Al-4V is able to support high level of deformations like superplastic deformation for aeronautical structural applications. However, the applied temperature during forming induces changes in phase fraction, which may have an impact on the mechanisms of deformation involved and the final part. Mechanisms described in the literature, like dislocation glide, diffusional creep, Grain Boundary Sliding (GBS) accommodated by dislocation or diffusion, are still controversial as there are mainly based on post mortem analysis or on stress-strain data. The purpose of this work was to combine interrup

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Livingston, J. D., and E. L. Hall. "Room-temperature deformation in a Laves phase." Journal of Materials Research 5, no. 1 (1990): 5–8. http://dx.doi.org/10.1557/jmr.1990.0005.

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Transmission electron microscopy of two-phase V-Hf-Nb and V-Hf-Nb-Ti alloys plastically deformed at room temperature shows that {111} (112) twinning is a major deformation mode for the HfV2-based Laves phase. Bands of concentrated shear are also observed. Possible approaches to enhance low-temperature deformability in other Laves phases are discussed.

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GUBENKO, S. I., E. V. PARUSOV, and I. M. CHUIKO. "CRACK INITIATION ALONG THE INTERPHASE BOUNDARIES OF THE “PHASE SIDE BY SIDE” TYPE HETEROPHASE INCLUSIONS." Physical Metallurgy and Heat Treatment of Metals 1, no. 1 (96) (2022): 24–31. http://dx.doi.org/10.30838/j.pmhtm.2413.240422.24.839.

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Purpose of research. Investigation into crack initiation features in heterophase inclusions of the “phase side by side” type during steel deformation. Methods. Destruction of various types heterophase inclusions is investigated during the deformation of samples from steels 08Ti, 08Al, 12MnSi, 08unk, 09Mn2Si, 08GSiAlTiV in the temperature range 20...1 200 °С. Samples of 08Ti and 08Al steels are subjected to tension, compression and bending, steel HB-57 − to tension and compression, steel 08unk, 08Cr, ATs45X ,ATs18XGT − to tension in vacuum at temperatures of 20...1 200 °С on experimental settin

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TAKADA, NAOKI, AKIO TOMIYAMA, and SHIGEO HOSOKAWA. "LATTICE BOLTZMANN SIMULATION OF INTERFACIAL DEFORMATION." International Journal of Modern Physics B 17, no. 01n02 (2003): 179–82. http://dx.doi.org/10.1142/s0217979203017308.

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This study describes the numerical simulations of two-phase interfacial deformations using the binary fluid (BF) model in the lattice Boltzmann method (LBM), where a macroscopic fluid involves mesoscopic particles repeating collisions and propagations and an interface is reproduced in a self-organizing way by repulsive interaction between different kinds of particles. Schemes for the BF model are proposed to simulate motions of immiscible two phases with different mass densities. For higher Reynolds number, the finite difference-based lattice Boltzmann scheme is applied to the kinetic equation

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Xu, Luyan, Huanjian Xie, Kuan Chen, Ruizhi Feng, Donghui Zheng, and Haoge Shou. "Unveiling the Microstructure Evolution and Mechanical Strengthening Mechanisms in Mg–2Y–xZn Alloys." Materials 18, no. 14 (2025): 3303. https://doi.org/10.3390/ma18143303.

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This work systematically investigates the Zn-content-dependent phase evolution (1–12 at.%) and its correlation with mechanical properties in as-cast Mg–2Y–xZn alloys. A sequential phase transformation is observed with the Zn content increasing: the microstructure evolves from X-phase dominance (1–2 at.% Zn) through W-phase formation (3–6 at.% Zn) to I-phase emergence (12 at.% Zn). Optimal mechanical performance is attained in the 2 at.% Zn-containing alloy, with measured tensile properties reaching 239 MPa UTS and 130 MPa YS, while maintaining an elongation of 12.62% prior to its gradual decli

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Sato, Hisashi, Takayuki Nishiura, Eri Miura-Fujiwara, and Yoshimi Watanabe. "Phase Transformation in Fe Alloys Induced by Surface Treatment." Materials Science Forum 706-709 (January 2012): 1996–2001. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.1996.

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Difference of the phase transformation behavior at deformation-induced layer depending on surface treatment methods was investigated using Fe-33mass%Ni alloy. As specimens, two kinds of specimens were prepared. One specimen has austenite (γ) single structure, and the other specimen consists of both martensite (α’) and γ phases. Using these specimens, shot-peening tests were performed, and then phase transformation behavior induced by the shot-peening was compared with that by sliding wear reported in previous literature. The deformation-induced layer induced by shot-peening has very fine micro

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Liu, Kai, Si Jin Wu, Xin Ya Gao, and Lian Xiang Yang. "Simultaneous Measurement of In-Plane and Out-of-Plane Deformations Using Dual-Beam Spatial-Carrier Digital Speckle Pattern Interferometry." Applied Mechanics and Materials 782 (August 2015): 316–25. http://dx.doi.org/10.4028/www.scientific.net/amm.782.316.

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Digital speckle pattern interferometry (DSPI) is an advanced technique for both in-plane and out-of-plane deformation measurements of diffuse surfaces in nanoscale. It has been widely used in aerospace engineering and other high-tech industries due to the advantages of non-contact, high-accuracy and full-field measurement. Traditionally, DSPI uses temporal phase shifting method to achieve precise deformation measurement, but it is only suitable for quasi-static deformation. Spatial-carrier method is another effective phase retrieval method used in DSPI and its validity has been verified in som

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Fan, Caihe, Ling Ou, Jianjun Yang, and Xihong Chen. "Nano-Precipitated Phase and Evolution of Al-Cu-Mg Alloy Subjected to Rapid Cold Stamping." Nanoscience and Nanotechnology Letters 11, no. 9 (2019): 1318–26. http://dx.doi.org/10.1166/nnl.2019.3003.

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High-resolution transmission electron microscopy, energy dispersive spectroscopy, and hardness test were used to study the nano-precipitates and evolution of nano-precipitation of the sprayformed fine-grained Al-Cu-Mg alloy during rapid cold stamping deformation. Results show that the elongated S-phase and the acicular ' phase of the Al-Cu-Mg alloy after three passes of cold stamping of rapid cold-shock deformation undergoes re-dissolution, and a large number of the fine granular balance  phases are precipitated after four passes of rapid cold-stamping deformation. The main mechanism of low-

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Andreyachshenko, V., and A. Toleuova. "On the influence of iron and silicon content on the phase composition of the Al-Fe-Si system." Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex Use of Mineral Resources 332, no. 1 (2024): 98–107. http://dx.doi.org/10.31643/2025/6445.09.

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Increasing interest in intermetallic phases of the Al-Fe-Si system is associated with their high specific strength, corrosion and wear resistance, as well as the low cost of their production. To exhibit the most successful combination of properties, it is necessary to impart a specific compact morphology to the precipitated intermetallic phases. It is important to create an alloy with a composition capable of accepting plastic deformation. The purpose of the work is to develop the composition of an Al-Fe-Si system alloy capable of withstanding plastic deformation and determining the correspond

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Bassani, Paola, Marco Breda, Katya Brunelli, et al. "Characterization of a Cold-Rolled 2101 Lean Duplex Stainless Steel." Microscopy and Microanalysis 19, no. 4 (2013): 988–95. http://dx.doi.org/10.1017/s1431927613001426.

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AbstractDuplex stainless steels (DSS) may be defined as a category of steels with a two-phase ferritic–austenitic microstructure, which combines good mechanical and corrosion properties. However, these steels can undergo significant microstructural modification as a consequence of either thermo-mechanical treatments (ferrite decomposition, which causes σ- and χ-phase formation and nitride precipitation) or plastic deformation at room temperature [austenite transformation into strain-induced martensite (SIM)]. These secondary phases noticeably affect the properties of DSS, and therefore are of

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Chen, Mingsong, Quan Chen, Yumin Lou, et al. "Effect of Deformation Parameters of an Initial Aged GH4169 Superalloy on Its Microstructural Evolution during a New Two-Stage Annealing." Materials 15, no. 16 (2022): 5508. http://dx.doi.org/10.3390/ma15165508.

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This study aims to explore the effect of deformation parameters on microstructure evolution during the new two-stage annealing method composed of an aging treatment (AT) and a cooling recrystallization annealing treatment (CRT). Firstly, the hot compressive tests with diverse deformation parameters were finished for an initial aged deformed GH4169 superalloy. Then, the same two-stage annealing method was designed and carried out for the deformed samples. The results show that the deformation parameters mainly affect the grain microstructure during CRT by influencing the content, distribution a

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Marzuki, Marzuki, Zul Ikram, and Vira Friska. "Deformation Analysis of 2012 Mw8.6 Indian Ocean Earthquake Based on GPS Data in Preseismic, Coseismic, and Postseismic Phases." Jurnal Penelitian Pendidikan IPA 8, no. 6 (2022): 2785–92. http://dx.doi.org/10.29303/jppipa.v8i6.2419.

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The earthquake was one of the biggest natural disasters in Sumatra and dramatically affected this region and the surrounding area. Determination of surface deformation due to the earthquake is essential for disaster mitigation. The Global Navigation Satellite System (GNSS) is a commonly used method for determining surface deformation due to earthquakes. This study analyzes surface deformation during the preseismic, coseismic, and postseismic phases due to the 2012 Mw8.6 Indian Ocean earthquake. The study used Global Positioning System (GPS) data from the Sumatran GPS Array (SuGAr) network. The

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Gao, Yushe, Xiangyi Xue, Huixian Gao, et al. "Investigation of High-Temperature Constitutive Behavior of Ti555211 Titanium Alloy Subjected to Plastic Deformation in the Different Phase Regions." Metals 12, no. 10 (2022): 1562. http://dx.doi.org/10.3390/met12101562.

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Ti555211 titanium alloy is subjected to plastic deformation in the dual-phase (α + β phase) zone and single-phase (β phase) zone at various deformation temperatures and strain rates. High-temperature constitutive equations of the alloy in the dual-phase zone and single-phase zone are established in order to describe deformation behavior of the alloy in the different phase zones. By comparing the constitutive equation of the alloy in the dual-phase zone with that of the alloy in the single-phase zone, the deformation activation energy of the former was found to be higher than that of the latter

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Wei, Chenshuang, Sai Tang, Yi Kong, Xiong Shuai, Hong Mao, and Yong Du. "Atomic-Scale Insights into the Deformation Mechanism of the Microstructures in Precipitation-Strengthening Alloys." Materials 16, no. 5 (2023): 1841. http://dx.doi.org/10.3390/ma16051841.

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Clarifying the deformation behaviors of microstructures could greatly help us understand the precipitation-strengthening mechanism in alloys. However, it is still a formidable challenge to study the slow plastic deformation of alloys at the atomic scale. In this work, the phase-field crystal method was used to investigate the interactions between precipitates, grain boundary, and dislocation during the deformation processes at different degrees of lattice misfits and strain rates. The results demonstrate that the pinning effect of precipitates becomes increasingly strong with the increase of l

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Laudal, Olav Arnfinn. "Phase Spaces and Deformation Theory." Journal of Generalized Lie Theory and Applications 5 (2011): 1–18. http://dx.doi.org/10.4303/jglta/g110104.

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Lindop, J. E., G. M. Treece, A. H. Gee, and R. W. Prager. "Phase-based ultrasonic deformation estimation." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 55, no. 1 (2008): 94–111. http://dx.doi.org/10.1109/tuffc.2008.620.

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Laudal, Olav Arnfinn. "Phase Spaces and Deformation Theory." Acta Applicandae Mathematicae 101, no. 1-3 (2008): 191–204. http://dx.doi.org/10.1007/s10440-008-9192-8.

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Vasconcelos, Bruno Rodrigo, Amarildo Salina Ruiz, and João Batista de Matos. "Polyphase deformation and metamorphism of the Cuiabá group in the Poconé region (MT), Paraguay Fold and Thrust Belt: kinematic and tectonic implications." Brazilian Journal of Geology 45, no. 1 (2015): 51–63. http://dx.doi.org/10.1590/23174889201500010004.

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Several deformation models have been proposed for the Paraguay Belt, which primarily differ in the number of phases of deformation, direction of vergence and tectonic style. Structural features presented in this work indicate that the tectonics was dominated by low dip thrust sheets in an initial phase, followed by two progressive deformation phases. The first phase of deformation is characterized by a slate cleavage and axial plane of isoclinal recumbent folds with a NE axial direction, with a recrystallization of the minerals in the greenschist facies associated with horizontal shear zones w

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