• CiteSeerX — HallPetch Behavior in Ultra-Fine-Grained AISI

    CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda) An ultra-fine-grained AISI 301LN austenitic stainless steel has been achieved by heavy cold rolling, to induce the formation of martensite, and subsequent annealing at 800 C, 900 C, and 1000 C, from 1 to 100 seconds. The microstructural evolution was analyzed using transmission electron microscopy and the yield

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  • Deformation behavior of ultrafine-grain (UFG) AZ31B Mg

    Deformation behavior of ultrafine-grain (UFG) AZ31B Mg alloy at room temperature. Qingda Yang, A. K. Ghosh. Tension and compression tests in both in-plane and normal-to-plane directions are carried out on coarse- and fine-grain AZ31B Mg alloy at room temperature. It is found that the strain rate sensitivity of flow stress increases

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    Electrochemical corrosion behavior of bulk ultra-fine

    of ultra-fine grained (UFG) microstructure formed by ECAP technique on mechanical properties [2−7], phase transformation characteristics [8], thermal stability [9] and radiation tolerance [10] of SS materials have been extensively investigated. However, not many investigations have been reported on the corrosion behavior of bulk as-ECAPed

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  • Fracture behavior of twin induced ultra-fine grained ZK61

    In this study ultra-fine grained single pass extruded ZK61 magnesium alloy sheet is processed at temperature 350 °C with area reduction ratio ˜30. The complex dynamic mechanical behavior is studied experimentally with Split Hopkinson pressure bar over wide ranges of strain rates (10004000 s −1) along the normal direction. Electron

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  • Load Relaxation Behavior of Ultra-Fine Grained Ti-6Al-4V

    Load Relaxation Behavior of Ultra-Fine Grained Ti-6Al-4V Alloy In the present paper, superplastic behavior of the alloy was investigated, the microstructural evolution in superplastic deformation was observed and the superplastic deformation mechanisms were analyzed. During the first stage of superplastic deformation, a phase grains

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  • Fabrication and thermo-mechanical behavior of ultra-fine

    Fabrication and thermo-mechanical behavior of ultra-fine porous copper. The objective of this work was to manufacture ultra-fine porous copper, to determine the thermo-mechanical properties, and to elucidate the deformation behavior at room as well as elevated temperatures via nanoindentation. The experimental approach for manufacturing the

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  • Behavior of Ultra Fine Particles in Electric Field

    The behavior of ultra fine particles in an electric field was measured in order to apply it to classification of fine particles. The sample particles used are spherical polystyrene particles with the average size of 0.03, 0.1, 1.0, 4.3 and 9.6 µm.

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  • UltraFICO™ Score FICO

    Seven out of 10 consumers in the U.S. who exhibit sound financial behavior in their checking and savings accounts see an UltraFICO™ Score that is higher than their traditional FICO® Score. The UltraFICO™ Score algorithm adjusts the existing FICO® Score given the additional insight offered by the consumer permissioned DDA data.

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  • Aging Behavior of Ultra-Fine Grained Al0.5%Si0.5%Ge

    Keiyu Nakagawa 1), Nobuhiro Tsuji 2), Daisuke Terada 2), Toshihiko Nakano 1), Khairul Nizam 1), Teruto Kanadani 1). 1) Department of Mechanical Systems Engineering, Faculty of Engineering, Okayama University of Science 2) Graduate School of Engineering, Department of Materials Science and Engineering, Kyoto University

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  • Static and Cyclic Crack Growth Behavior of Ultrafine

    Fracture-mechanics experiments were carried out on ultrafine-grained (UFG) samples of aluminum and two Al alloys to obtain the fracture behavior under static and cyclic loading. The UFG materials investigated show crack resistance behavior under static loading, which was confirmed by ductile fracture surfaces. Under cyclic load, the crack growth rate was described well by the ESACRACK

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  • Significantly changed intergranular corrosion and

    Significantly changed intergranular corrosion and exfoliation corrosion behavior of the ultra‐fine grained Al5 mass% Cu alloy fabricated by ECAP. D. Song. Institute of Metals and Protection, College of Mechanics and Materials, Hohai University, Nanjing 210098 (P. R. China)

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  • Fabrication and thermo-mechanical behavior of ultra-fine

    An increase in the strain rate sensitivity was observed, comparably to that of ultra-fine-grained copper, which can be linked to thermally activated processes at grain boundaries. Important insights into the effects of oxidation on the deformation behavior were obtained by assessing the activation volume.

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  • Superplasticity Wikipedia

    In materials science, superplasticity is a state in which solid crystalline material is deformed well beyond its usual breaking point, usually over about 600% during tensile deformation. Such a state is usually achieved at high homologous temperature. Examples of superplastic materials are some fine-grained metals and ceramics.

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  • Corrosion Behavior of Ultra Fine Grain Copper Produced by

    Aug 27, 2013 · In this study the effect of microstructure changes on the corrosion behavior of pure tough pitch copper in 3.5 % NaCl solution with pH = 5.5 at ambient temperature was studied. Accumulative roll bonding process as severe plastic deformation was applied up to 8 cycles to produce the ultrafine grain copper. For corrosion resistance investigations, the polarization and electrochemical impedance

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  • Study on the Wear Behavior of Ultrafine Grained 304L

    An ultrafine grained 304L stainless steel with average grain size of 650±100 nm was produced by a combination of cold rolling and annealing. Wear behavior of the steel was examined by dry sliding wear tests under different loads. Different microstructural characterizations were conducted on the ultrafine grained structure after thermomechanical processing and wear tests.

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  • Cyclic Material Behavior of Ultra‐High‐Strength Fine

    Ultra‐high‐strength fine‐grained steels are a convenient choice in highly loaded structures in order to realize lightweight design applications. An example is given by the topside of the telescopic boom of truck cranes. Such applications belong to the low cycle fatigue,

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  • Dynamic deformation and fracture behavior of ultra-fine

    Dynamic deformation and fracture behavior of ultra-fine-grained pure copper fabricated by equal channel angular pressing

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  • [SFM] Basics in Behavior [Blue] Baldi's Basics Song

    Aug 14, 2018 · Using my animation in your cover of the original song, english or in another language is fine Reaction videos "Compilation" videos in terms of like top 10s and stuff

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  • Deformation behavior and plastic instabilities of

    Jul 23, 2001 · Ultrafine-grained (UFG) Ti samples have been prepared using equal channel angular pressing followed by cold rolling and annealing. The deformation behavior of these materials, including strain hardening, strain rate dependence of flow stress, deformation/failure mode, and tensile necking instability, have been systematically characterized. The findings are compared with those for

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  • Superplastic deformation behavior of ultra-fine-grained Ti

    Superplastic deformation behavior of ultra-fine-grained Ti-1V-4Al-3Mo alloy constitutive modeling and processing map. A O Mosleh 1,2, A V Mikhaylovskaya 1, A D Kotov 1, The flow behavior was investigated in a temperature range of 775 °C900 °C and a constant strain rate range of 2

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  • Know the Risks E-cigarettes and Young People

    Behavior Risks. E-cigarette use among youth and young adults is strongly linked to the use of other tobacco products, such as regular cigarettes, cigars, hookah, and smokeless tobacco. Some evidence suggests that e-cigarette use is linked to alcohol use and other substance use, such as marijuana.

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  • Rate‐Dependent Mechanical Behavior and Amorphization

    Oct 01, 2016 · Read "Rate‐Dependent Mechanical Behavior and Amorphization of Ultrafine‐Grained Boron Carbide, Journal of the American Ceramic Society" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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  • Corrosion Behavior of Ultra-Fine Grain Chromium Bronze

    The corrosion resistance of Ultra-fine grain (UFG) chromium bronze, prepared by Equal-channel angular pressing (ECAP) processing, was investigated in HCl solution at room temperature and atmospheric pressure by electrochemistry technique and immersion experiment. The results shows that the corrosion potential of chromium bronze is decreased with ECAP processing.

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  • Improved Mechanical Behavior and Plastic Deformation

    Nov 23, 2011 · The mechanical behavior, including hardness from nanoindentation tests, scratch hardness, scratch resistance, and coefficient of friction from nanoscratch tests, can be improved with grain refinement. Moreover, the surface roughness of the scratch grooves and the distinct morphologies of the nanoscratch debris from each sample reveal that

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  • Dynamic Deformation and Fracture Behavior of Ultra-Fine

    Abstract In this study, dynamic deformation and fracture behavior of ultra-fine-grained dual phase steels fabricated by equal channel angular pressing (ECAP) was compared with that of conventionally annealed ultra-fine-grained steels.

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  • () Electrochemical behavior of copper metal core/oxide

    Methods of voltammetry and polarography have been applied to study electrochemical behavior of ultrafine copper particles with Z-average diameter 120 nm in aqueous electrolytic media on mercury electrodes. Particles have been preliminarily stabilized

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    Electrochemical corrosion behavior of bulk ultra-fine

    of ultra-fine grained (UFG) microstructure formed by ECAP technique on mechanical properties [2−7], phase transformation characteristics [8], thermal stability [9] and radiation tolerance [10] of SS materials have been extensively investigated. However, not many investigations have been reported on the corrosion behavior of bulk as-ECAPed

    Get Price
  • How to Adjust High-DPI Scaling in Windows 10

    Aug 21, 2019 · How to adjust high-DPI scaling in Windows 10 Get the most out of your high-resolution display by tweaking its DPI scaling

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    ANALYZING THE US RETAIL WINE MARKET USING

    ANALYZING THE US RETAIL WINE MARKET USING PRICE AND CONSUMER SEGMENTATION MODELS (REFEREED) Susan Cholette, San Francisco State University, USA segmentation and analysis of the US market by consumer behavior patterns, a model Over $14 Ultra

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  • Cyclic Deformation Behavior of Ultra-Fine Grained Copper

    Cyclic deformation behavior of ultra-fine grained (UFG) Cu of 99.99% purity processed by equal-channel angular pressing was investigated. In tension-compression fatigue tests under strain control, UFG Cu showed cyclic softening.

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  • Aging behavior of ultrafine grained Al2 wt%Cu alloy

    AbstractAging behavior of an ultrafine grained AlCu alloy was studied. Al2 wt%Cu alloy sheets were solution-treated at 550 °C for 1.8 ks and then severely deformed up to an equivalent strain of 4.8 by the accumulative roll bonding (ARB) process at ambient temperature. The ARB processed material showed the ultrafine lamellar boundary structure with mean boundary interval of 67 nm.

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  • Cyclic deformation behavior of ultra-fine grained copper

    The cyclic deformation behavior of ultra fine grained copper after 7 cycles of accumulative roll bonding (ARB) have been systematically investigated under both load controlled and total strain controlled tests. The composite microstructure found in the as-ARBed samples has lead to unique behavior

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