Gotowe bibliografie tematyczne / Strain mechanisms; dislocations

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  1. Artykuły w czasopismach
  2. Rozprawy doktorskie
  3. Książki
  4. Części książek
  5. Streszczenia konferencji
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Gotowa bibliografia na temat „Strain mechanisms; dislocations”

Autor: Grafiati
Data publikacji: 3 czerwca 2025
Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Strain mechanisms; dislocations"

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Jenei, Péter, Guy Dirras, Jenő Gubicza, and Hervé Couque. "Deformation Mechanisms in Ultrafine-Grained Zn at Different Strain Rates and Temperatures." Key Engineering Materials 592-593 (November 2013): 313–16. http://dx.doi.org/10.4028/www.scientific.net/kem.592-593.313.

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The deformation mechanisms in ultrafine-grained hexagonal close packed Zn were investigated at different strain rates and temperatures. The influence of grain size on the deformation mechanisms was revealed by comparing the results obtained on ultrafine-grained and coarse-grained Zn. It was found that for coarse-grained Zn at room temperature and strain rates lower than 10-2s-1twinning contributed to plasticity besides dislocation activity. For strain rates higher than 103s-1the plasticity in coarse-grained Zn was controlled by dislocation drag. In ultrafine-grained Zn the relatively large dis
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Nazé, Loic, and Jean Loup Strudel. "Strain Rate Effects and Hardening Mechanisms in Ni Base Superalloys." Materials Science Forum 638-642 (January 2010): 53–60. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.53.

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The mechanical properties of nickel superalloys are related to the spatial distribution of hardening phases, their size and composition, and on the configurations of dislocations introduced by plastic and viscoplastic straining. Heterogeneous plastic flow in relation with dynamic strain aging is examined and synthesized. Dislocations are usually faced with the alternative of shearing or bypassing the ’ phase occupying up to 60 vol.%. Depending on ’ size, several Orowan bypassing mechanisms are observed, alternatively shearing by dislocation pairs or complex configurations involving S-ISF and
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Mughrabi, Haël. "On the dislocation mechanisms of dynamic strain ageing in fatigued plain carbon steels." International Journal of Materials Research 94, no. 5 (2003): 471–77. http://dx.doi.org/10.1515/ijmr-2003-0085.

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Abstract The fatigue life of plain ferritic carbon steels fatigued in stress-controlled (plastic-strain-controlled) tests exhibits a maximum (minimum) at a temperature of approx. 300 °C as a result of dynamic strain ageing (DSA). In the regime of DSA, an enhanced cyclic hardening related to an increased dislocation density is observed, and the dislocation arrangement changes from a dislocation cell structure (at intermediate stress amplitudes) at room temperature to a dense edge di-/multipolar bundle/wall/vein structure in the temperature range of DSA and back to a dislocation cell/ subgrain s
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He, Yang-Yu, Zhao-Hui Zhang, Yi-Fan Liu, et al. "Ultra-High Strength and Specific Strength in Ti61Al16Cr10Nb8V5 Multi-Principal Element Alloy: Quasi-Static and Dynamic Deformation and Fracture Mechanisms." Materials 18, no. 14 (2025): 3245. https://doi.org/10.3390/ma18143245.

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This study investigates the deformation and fracture mechanisms of a Ti61Al16Cr10Nb8V5 multi-principal element alloy (Ti61V5 alloy) under quasi-static and dynamic compression. The alloy comprises an equiaxed BCC matrix (~35 μm) with uniformly dispersed nano-sized B2 precipitates and a ~3.5% HCP phase along grain boundaries, exhibiting a density of 4.82 g/cm3, an ultimate tensile strength of 1260 MPa, 12.8% elongation, and a specific strength of 262 MPa·cm3/g. The Ti61V5 alloy exhibits a pronounced strain-rate-strengthening effect, with a strain rate sensitivity coefficient (m) of ~0.0088 at 0.
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Shimokawa, Tomotsugu, Toshiyasu Kinari, and Sukenori Shintaku. "Atomic Simulations on the Grain Subdivision of a Crystalline Metal." Materials Science Forum 561-565 (October 2007): 1983–86. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.1983.

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The relationship between grain subdivision mechanisms of a crystalline metal and the strain gradient under severe plastic deformation is studied by using molecular dynamics simulations in quasi two dimensions. Two problems are simulated for single crystal models: (a) uniaxial tensile and compressive deformation and (b) localized shear deformation. In the case of uniaxial deformation, a large number of dislocation pairs with opposite Burgers vectors are generated under deformation, but most dislocations are vanished due to pair annihilation under relaxation. Therefore, no dislocation boundary c
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Belyakov, Andrey, Marina Odnobokova, Iaroslava Shakhova, and Rustam Kaibyshev. "Regularities of Microstructure Evolution and Strengthening Mechanisms of Austenitic Stainless Steels Subjected to Large Strain Cold Working." Materials Science Forum 879 (November 2016): 224–29. http://dx.doi.org/10.4028/www.scientific.net/msf.879.224.

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The deformation microstructures and their effects on mechanical properties of austenitic stainless steels processed by cold rolling at ambient temperature to various total strains were studied. The cold working was accompanied by the development of strain-induced martensitic transformation because of meta-stable austenite at room temperature. The strain-induced martensitic transformation and deformation twinning promoted the grain refinement during cold rolling, leading to nanocrystalline structures consisting of a mixture of austenite and martensite grains with their transverse grain sizes of
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Solov’eva, Yu V., A. N. Solov’ev, M. V. Gettinger, O. D. Pantyukhova, and V. A. Starenchenko. "Contributions of various mechanisms to the flow stress in Cu – 12 at. % Al single crystals." Deformation and fracture of materials, no. 1 (2022): 19–26. http://dx.doi.org/10.31044/1814-4632-2022-1-19-26.

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The evolution of the structure in the process of plastic deformation by compression of Cu – 12 at.% Al single crystals is investigated. Data on the stress-strain curve, deformation stages and the relationship of stages with the types of forming substructures are presented. Quantitative measurements of various parameters characterizing the substructures were carried out. The results are presented in the form of a diagram of the dependence of the fraction of substructures on the density of dislocations. Dependences of the distances between non-reactive intersections of dislocations, inter-disloc
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Chang, Shou-Yi, Yi-Chung Huang, Shao-Yi Lin, Chia-Ling Lu, Chih Chen, and Ming Dao. "In Situ Study of Twin Boundary Stability in Nanotwinned Copper Pillars under Different Strain Rates." Nanomaterials 13, no. 1 (2023): 190. http://dx.doi.org/10.3390/nano13010190.

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The nanoscopic deformation of ⟨111⟩ nanotwinned copper nanopillars under strain rates between 10−5/s and 5 × 10−4/s was studied by using in situ transmission electron microscopy. The correlation among dislocation activity, twin boundary instability due to incoherent twin boundary migration and corresponding mechanical responses was investigated. Dislocations piled up in the nanotwinned copper, giving rise to significant hardening at relatively high strain rates of 3–5 × 10−4/s. Lower strain rates resulted in detwinning and reduced hardening, while corresponding deformation mechanisms are propo
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Lee, W.-S., C.-F. Lin, and B.-T. Chen. "Tensile properties and microstructural aspects of 304L stainless steel weldments as a function of strain rate and temperature." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 219, no. 5 (2005): 439–51. http://dx.doi.org/10.1243/095440605x17045.

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This paper presents an investigation into the effects of loading rate and temperature on the tensile properties and microstructural evolution of 304L stainless steel weldments. The stress-strain behaviour during tension was determined by loading specimens in a material testing system at strain rates ranging from 10−3 to 10−1 s−1 and temperatures between −100 and 500°. Extensive quantitative microstructural examinations were performed to identify the correlation between the tensile response and the substructure of dislocations and α’ martensite. It was found that the tensile flow stress increas
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Kvam, E. P., D. M. Maher, and C. J. Humphreys. "Variation of dislocation morphology with strain in GexSi1−x epilayers on (100)Si." Journal of Materials Research 5, no. 9 (1990): 1900–1907. http://dx.doi.org/10.1557/jmr.1990.1900.

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A change in microstructure, including dislocation Burgers vector, length, and behavior, has been observed to occur when the epilayer mismatch is varied in GexSi1−x layers grown on (100) Si. At low mismatches (<1.5%), there is an orthogonal array of very long 60° misfit dislocations. At higher mismatches (>2.3%) there is an orthogonal array of short edge dislocations. At intermediate mismatches (1.5 to 2.3%) there is a mixture of 60° and edge dislocations. The nature of the microstructure has a pronounced effect on the density of threading dislocations in the epilayer, which increase by a
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Rozprawy doktorskie na temat "Strain mechanisms; dislocations"

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Fowler, Rebecca M. "Identification of deformation mechanisms during bi-axial straining of superplastic AA5083 material." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://handle.dtic.mil/100.2/ADA432796.

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Torabiandehkordi, Noushin. "High and very high cycle fatigue behavior of DP600 dual-phase steel : correlation between temperature, strain rate, and deformation mechanisms." Thesis, Paris, ENSAM, 2017. http://www.theses.fr/2017ENAM0020/document.

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Ce travail vise à améliorer notre compréhension du comportement en fatigue à grand et très grand nombre de cycles d’un acier ferrito-martensitique dual phase, notamment les effets de la température et de la vitesse de déformation résultant de chargements cycliques à haute fréquence. L'effet de la fréquence sur la réponse en fatigue de l'acier DP600 a été étudié en effectuant des essais de fatigue sur une machine ultrasonique travaillant à 20 kHz et sur une machine conventionnelle travaillant à des fréquences inférieures à 100 Hz. Des études de fractographie et des observations microscopiques à
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Schayes, Claire. "Low cycle fatigue of the Fe-3Si steel : damage mechanisms and strain localisation by EBSD." Thesis, Lille 1, 2016. http://www.theses.fr/2016LIL10002/document.

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L’objectif de ce travail de thèse était d’étudier le comportement en fatigue oligocyclique de l’acier Fe-3Si utilisé pour les rotors des nouveaux alterno-démarreurs développés par Valeo. L’étude pris en compte la relation entre la réponse mécanique et la microstructure, les mécanismes de fatigue, l’évaluation de la déformation à une échelle mésoscopique et une optimisation du dimensionnement du rotor. Les essais de fatigue, menés sur des éprouvettes d’épaisseur 350μm, ont montré un durcissement cyclique du matériau et le mode de propagation de la fissure, fragile, souligne sa faible ténacité.
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Shehadeh, Mu'Tasem A. "Modeling of high strain rate and strain localization in FCC single crystals multiscale dislocation dynamics analyses /." Online access for everyone, 2005. http://www.dissertations.wsu.edu/Dissertations/Spring2005/M%5FShehadeh%5F050405.pdf.

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Li, Quantong. "Strain relaxation in InGaN/GaN herostructures." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMC204/document.

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Dans ce travail, nous avons étudié la relaxation de couches d’hétérostructures InGaN/GaN obtenue par épitaxie en phase vapeur aux organométalliques (EPVOM) et épitaxie aux jets moléculaires (EJM) principalement par microscopie électronique en transmission (MET). Pour ce faire, nous avons fait varier la composition de l'indium de 4.1% au nitrure d'indium pur, ce qui correspond lors de la croissance sur GaN à un décalage paramétrique allant de 1% à 11.3%. Le travail a porté sur des couches dont l’épaisseur allait de 7 nm à 500 nm. A partir d’une composition en indium voisine de 10%, nous mettons
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Hu, Jindong, and 胡勁東. "Elastic fracture of annulated structures analyzed by distributed dislocation." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31241785.

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Degli, Alessandrini Giulia. "Deformation mechanisms and strain localization in the mafic continental lower crust." Thesis, University of Plymouth, 2018. http://hdl.handle.net/10026.1/12799.

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The rheology and strength of the lower crust play a key role in lithosphere dynamics, influencing the orogenic cycle and how plate tectonics work. Despite their geological importance, the processes that cause weakening of the lower crust and strain localization are still poorly understood. Through microstructural analysis of naturally deformed samples, this PhD aims to investigate how weakening and strain localization occurs in the mafic continental lower crust. Mafic granulites are analysed from two unrelated continental lower crustal shear zones which share comparable mineralogical assemblag
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Fredriksson, Per. "Modelling and simulation of plastic deformation on small scales : interface conditions and size effects of thin films." Doctoral thesis, Stockholm : Hållfasthetslära, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4652.

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ZHOU, XIAO-WEI. "Contribution au comportement dynamique des materiaux metalliques : etude experimentale de l'alliage al-li en torsion et en compression, simulation numerique du processus de penetration a grande vitesse." Nantes, 1988. http://www.theses.fr/1988NANT2014.

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Etude experimentale sur les alliages al-li soumis a des essais de traction et de compression pour des vitesses de deformation comprises entre 10**(-4) et 310**(3) s**(-1) et de 10**(-3) a 210**(3) s**(-1) respectivement. Auparavant ces alliages ont ete traites thermiquement. Analyse de la sensibilite a la vitesse de deformation. Influence du mecanisme d'activation thermique sur le processus de deformation. Determination du mode de rupture. Analyse des facies de rupture pour les echantillons deformes en traction et de la formation des cellules de dislocation dans ceux deformes en compression. S
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Delos-Reyes, Michael A. "Microstructural and mechanisms of cyclic deformation of aluminum single crystals." Thesis, 1995. http://hdl.handle.net/1957/34889.

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Aluminum single crystals were cyclically deformed in single-slip at small strain amplitudes at 77 K to presaturation. The observed mechanical behavior is consistent with other recent work. The dislocation substructure was analyzed in detail. The structure can be described as consisting of dense bundles or veins of dislocation dipoles, separated by lower dislocation density regions where debris is evident. This debris was determined to be principally relatively short dipole segments. Screw dislocations with the same Burgers vector span the channels. Dislocations were essentially all of the same
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Książki na temat "Strain mechanisms; dislocations"

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A, Hills D. Solution of Crack Problems: The Distributed Dislocation Technique. Springer Netherlands, 1996.

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Rohde, R. Metallurgical Effects at High Strain Rates. Springer London, Limited, 2012.

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Delos-Reyes, Michael A. Microstructural and mechanisms of cyclic deformation of aluminum single crystals. 1995.

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Hills, D. A., P. A. Kelly, and D. N. Dai. Solution of Crack Problems: The Distributed Dislocation Technique. Springer, 2014.

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Hills, D. A., P. A. Kelly, D. N. Dai, and A. M. Korsunsky. Solution of Crack Problems: The Distributed Dislocation Technique (Solid Mechanics and Its Applications). Springer, 1996.

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Części książek na temat "Strain mechanisms; dislocations"

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Ohmura, Takahito. "Nanomechanical Characterization of Metallic Materials." In The Plaston Concept. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7715-1_8.

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AbstractMechanical behavior of metallic materials on nanoscale is characterized by using Nanoindentation and Transmission Electron Microscope (TEM) to understand the fundamental plasticity mechanisms associated with microstructural factors including dislocations. The advanced characterization techniques enable us to grasp the behavior on the nanoscale in detail. New knowledges are obtained for the plasticity initiation under the extremely high stress close to the theoretical strength in regions with defect-free matrix and pre-existing defects such as grain boundaries, in-solution elements, and
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Sandström, Rolf. "Tertiary Creep." In Basic Modeling and Theory of Creep of Metallic Materials. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-49507-6_12.

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AbstractIn the tertiary stage, the creep rate is continously increasing eventually leading to rupture. Many mechanisms can contribute to the increasing creep rate such as particle coarsening, substructure coarsening, cavitation, changes in the dislocation density and necking. A large number of empirical models exist for the description of tertiary creep and the development of creep damage not least in the context of continuum damage mechanics (CDM). However, there are also basic models. An equation is presented that can describe the whole creep strain versus time curve. Only parameters that ar
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Zolnikov, Konstantin P., Dmitrij S. Kryzhevich, and Aleksandr V. Korchuganov. "Regularities of Structural Rearrangements in Single- and Bicrystals Near the Contact Zone." In Springer Tracts in Mechanical Engineering. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60124-9_14.

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AbstractThe chapter is devoted to the analysis of the features of local structural rearrangementsin nanostructured materialsunder shear loadingand nanoindentation. The study was carried out using molecular dynamics-based computer simulation. In particular, we investigated the features of symmetric tilt grain boundary migration in bcc and fcc metals under shear loading. The main emphasis was on identifying atomic mechanisms responsible for the migration of symmetric tilt grain boundaries. We revealed that grain boundaries of this type can move with abnormally high velocities up to several hundr
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Koyama, Motomichi, Hiroshi Noguchi, and Kaneaki Tsuzaki. "Microstructural Crack Tip Plasticity Controlling Small Fatigue Crack Growth." In The Plaston Concept. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7715-1_10.

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AbstractIn this chapter, we present a metallurgical–mechanical mechanism-based strategy for the design of fatigue-resistant metals. Specifically, we elucidate the importance of the metallurgical microstructure in a mechanical singular field (crack tip). The fatigue crack growth resistance is controlled through the crack tip “plasticity”, and the effect of the associated microstructure becomes significant when the crack is “small (or short)”. More importantly, the resistance to small crack growth determines a major portion of fatigue life and strength. Therefore, the microstructural crack tip p
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Anand, Lallit, Ken Kamrin, and Sanjay Govindjee. "Physical basis of metal plasticity." In Introduction to Mechanics of Solid Materials. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780192866073.003.0012.

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Abstract This chapter discusses the polycrystalline aggregate nature of metals and emphasizes that the major mechanism responsible for plastic strain in metallic materials is the motion of line defects—called dislocations—on crystallographic slip planes in crystallographic slip directions within the individual crystals of the aggregate. Schmid’s law, which states that it is necessary for the resolved shear stress on a slip system to reach a critical value for slip to occur, is introduced. The concepts of a glide force acting on a dislocation and the line tension of a dislocation are introduced
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Haidemenopoulos, G. N., and Helen J. Kamoutsi. "Corrosion-Induced Hydrogen Embrittlement in AA2024." In Encyclopedia of Aluminum and Its Alloys. CRC Press, 2019. http://dx.doi.org/10.1201/9781351045636-140000215.

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Embrittlement of aluminum alloy 2024 caused by corrosion-induced hydrogen evolution and trapping is discussed in this article. The current literature on corrosion mechanisms, hydrogen trapping, and mechanisms of hydrogen embrittlement is briefly reviewed. Accelerated corrosion tests followed by thermal desorption spectroscopy enabled the identification of hydrogen traps in the microstructure of the material. The nature of these traps was identified by controlled experiments involving solution treatments and plastic deformation prior to corrosion, in order to alter the alloy microstructure. The
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Zhuang, Zhuo, Zhanli Liu, and Yinan Cui. "Strain Gradient Plasticity Theory at the Microscale." In Dislocation Mechanism-Based Crystal Plasticity. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-814591-3.00003-0.

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Zhuang, Zhuo, Zhanli Liu, and Yinan Cui. "Strain Rate Effect on Deformation of Single Crystals at Submicron Scale." In Dislocation Mechanism-Based Crystal Plasticity. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-814591-3.00011-x.

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Usenko, Dmytro, Iryna Usenko, and Veniamin Soloviev. "THE INFLUENCE OF HETEROGENEOUS MEDIUM MICROSCOPIC PROPERTIES ON PREDICTING MACROSCOPIC PROPERTIES OF MASONRY." In Traditional and innovative scientific research: domestic and foreign experience. Publishing House “Baltija Publishing”, 2024. http://dx.doi.org/10.30525/978-9934-26-436-8-2.

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The key aspects of the microscopic description of structurally inhomogeneous media are considered. This makes it possible to evaluate the macroscopic properties of stochastic multicomponent materials using statistical methods and distribution functions of local effective indicators and is important for predicting the behavior of structurally heterogeneous building materials under various conditions. It also allows us to develop new approaches to the creation and use of new materials in the future and their optimization for various applications. Studies of macroscopic and microscopic aspects of
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Koman, Bohdan, and Volodymyr Yuzevych. "REGULARITIES OF MACROPLASTIC DEFORMATION OF NARROW-BAND SINGLE CRYSTALS OF CdxHg 1-xTe SOLID SOLUTIONS." In State, trends and prospects of land sciences, environment, physics, mathematics and statistics’ development (1st. ed). Primedia eLaunch LLC, 2020. http://dx.doi.org/10.36074/stplsepmad.ed-1.04.

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The regularities of macroplastic deformation of narrow-band semiconductors of HgTe-CdTe solid solution crystals were studied by the uniaxial compression method on a Regel-Dubov relaxometer. The four-stage character of the strain hardening curve “stress-strain” is established. The influence of stoichiometry, load velocity and temperature on the nature of load curves is investigated. From the experiments on the relaxation of mechanical stresses, a thermoactivation analysis of the kinetics of microplastic deformation was performed. Thermoactivation parameters of dislocation motion are estimated.
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Streszczenia konferencji na temat "Strain mechanisms; dislocations"

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Bruemmer, S. M., J. I. Cole, and E. P. Simonen. "Microstructural Evolution, Localized Deformation and Intergranular Stress Corrosion Cracking of Irradiated Stainless Steels." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97103.

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Abstract Microstructural evolution and mechanical behavior of austenitic stainless steels are evaluated for neutron and heavy-ion irradiated materials. Radiation hardening in austenitic stainless steels is shown to result from the evolution of small interstitial dislocation loops during light-water-reactor (LWR) irradiation. The presence of these loops modifies deformation characteristics and prompts a significant increase in yield strength. Available data on stainless steels irradiated under LWR conditions have been analyzed and microstructural characteristics assessed for the critical fluenc
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Soda, Kazuma, Tsuyoshi Sugimoto, and Nozomu Adachi. "Evaluation of the Effect of Strain Accumulation on Dislocations and Grain Growth." In IFHTSE 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.ifhtse2024p0023.

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Abstract It is well known that the maximum prior austenite grain size after carburizing heat treatment is approximately positively correlated with the maximum shear strain in the case of simple deformation of pre process as cold working treatment. On the other hand, it is generally known that the maximum shear strain and the maximum grain size do not correspond when complex cold working is performed, but the reason of these phenomena is not well known. Then, it is necessary to investigate the relationship between the applied strain during cold working with multiple steps and prior austenite gr
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Joy, Jobin K., A. Rovinelli, M. Arul Kumar, et al. "Experimental and Numerical Characterization of High Temperature Deformation Behavior of 347H Stainless Steel." In AM-EPRI 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.am-epri-2024p0099.

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Abstract This study investigates how temperature affects the plasticity and thermal creep behavior of 347H stainless steel under uniaxial tension. The research combined experimental testing with advanced computational modeling. Two types of experiments were conducted: uniaxial tensile tests at temperatures from 100°C to 750°C using strain rates of ~10⁻⁴ s⁻¹, and creep tests at temperatures between 600°C and 750°C under various stress levels. These experimental results were used to develop and validate a new integrated mechanistic model that can predict material behavior under any loading condi
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Jones, Denny A. "Evidence for Localized Surface Plasticity During Stress Corrosion Cracking." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95169.

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Abstract Creep prior to stress corrosion cracking (SCC) has been frequently observed. Externally imposed anodic dissolution currents increase creep rates of pure metals and alloys in environments that do not cause SCC. Creep prior to SCC may result from anodic currents at active film rupture sites caused by coupling to surrounding noble passive surfaces. Several investigators have recently shown a correlation between creep rate and time to failure by SCC, implying that mechanisms of creep and cracking may be related. Recent thin-film diffusion experiments have shown evidence of vacancy formati
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Leinonen, H., T. Saario, and H. Hänninen. "Prediction of Stress Corrosion Cracking Susceptibility of Nitrogen Alloyed Stainless Steels in 50% CaCl2 Solution." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97189.

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Abstract Stress corrosion cracking (SCC) susceptibility of austenitic Type AISI 304L, AISI 316L stainless steels and nitrogen alloyed Type AISI 301 steels in 50% CaCl2 solution at 373 K (100°C) under open-circuit potential and cathodic polarization conditions was studied using a constant load test method. The electrical properties of the surface films formed were monitored as a function of time and potential by means of the Contact Electric Resistance (CER) method. The steady state strain rate (ε˙ss) obtained from the corrosion elongation curve (elongation vs. time curve) showed a linear depen
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Chai, Guocai, Ping Liu, and Johan Frodigh. "Influence of Temperature on the Strain Controlled Fatigue Behaviour of Alloy 690 Tube Material." In 12th International Conference on Nuclear Engineering. ASMEDC, 2004. http://dx.doi.org/10.1115/icone12-49262.

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Strain controlled fatigue tests for hot-extruded tube material of Alloy 690 (Sandvik Sanicro 69) have been performed at room temperature (RT) and at elevated temperature (204°C). The influences of temperature on the cyclic deformation behaviour and the fatigue life have been investigated. The influence of temperature on the fatigue life is relatively small in the temperature range investigated. However, the fatigue behaviour at elevated temperature is quite different from that at RT. A second cyclic strain hardening was observed at 204°C. The possible mechanisms have been investigated using tr
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Misra, A., H. Kung, D. Hammon, R. G. Hoagland, and M. Nastasi. "Damage Mechanisms in Nanolayered Metallic Composites." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32395.

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The strengths of metallic multilayers, composed of alternating layers of soft metals such as Cu and Nb, approach the theoretical limit of material strength when the bilayer periods are on the order of a few nanometers. We have investigated the damage mechanisms in these ultra-high strength nanolayered composite materials subjected to monotonic deformation. Large strain plastic deformation such as room temperature rolling does not lead to any dislocation cell structure formation within the layers indicating that the deformation and dislocation storage mechanisms in nanostructured materials are
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Do, Hyelim, Changgong Kim, and Kathryn H. Matlack. "Influence of Microstructure and Strain Hardening Rate on Acoustic Nonlinearity Parameter in Stainless Steel 316L during Tensile Loading." In ASNT Research Symposium 2023. The American Society for Nondestructive Testing Inc., 2023. http://dx.doi.org/10.32548/rs.2023.036.

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The accumulation of dislocations, which are atomic defects in materials subjected to plastic deformation, can cause structural failures. Early detection of such dislocation-related damage is essential to prevent these failures. The acoustic nonlinearity parameter β has been shown to be sensitive to the nonlinearity of dislocation motions, and prior research has shown a relationship between β and dislocation parameters in various damage mechanisms. While most work thus far reports that β generally increases with increased plastic deformation, recent research showed that β can decrease during mo
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Msolli, S., R. N. Raoelison, and Z. Q. Zhang. "A Physics Based Model for Ultrahigh Strain Rates in Cold Spray." In ITSC2022. DVS Media GmbH, 2022. http://dx.doi.org/10.31399/asm.cp.itsc2022p0383.

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Abstract Thermal spray technology keeps attracting several industries in both the manufacturing and repair sectors, thanks to its practicability and its reasonable processing time. Moreover, different kinds of materials can be successfully deposited to form coatings with potential excellent thermo-electro-mechanical properties. The resultant coating microstructure is completely different from the wrought powder material before the deposition process. In the case of metallic materials, the thermomechanical characteristics are quite dependent on the deposition conditions monitored from the spray
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Fragomeni, James M. "Mechanical Strength Modeling of Particle Strengthened Nickel-Aluminum Alloys Strengthened by Intermetallic γ′ (Ni3Al) Precipitates". У ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0629.

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Abstract A Nickel-Aluminum alloy strengthened by γ′ (Ni3Al) intermetallic ordered coherent precipitates with a small misfit strain was used a demonstration material to develop a model to predict strengthening behavior during plastic deformation as a consequence of the γ′ particles acting as obstacles to the dislocations and thus impeding their glide motion through the alloy. It was determined that the two most dominate strengthening mechanisms in the Ni-Al system were order hardening when the particles were smaller than the critical looping radius, and Orowan strengthening when the particles w
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Raporty organizacyjne na temat "Strain mechanisms; dislocations"

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Hirth, J. P., M. Rhee, H. M. Zhib, and T. D. de la Rubia. 3D dislocation dynamics: stress-strain behavior and hardening mechanisms in FCC and BCC metals. Office of Scientific and Technical Information (OSTI), 1999. http://dx.doi.org/10.2172/12206.

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