UFG materials
Hall Petch Relationship and Dislocation Model for Deformation of Ultrafine Grained and Nanocrystalline Metals
... of UFG and NC materials. Further- more, for these materials, many studies have pointed out that partial or perfect dislocations emitted from GBs play essential roles in the plastic ...
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Formation Mechanism of Ultrafine Grained Microstructures: Various Possibilities for Fabricating Bulk Nanostructured Metals and Alloys
... metallic materials with bulky ...why UFG microstructures form in the as-deformed (as-SPD-processed) state without annealing ...of UFG evolution has not yet been perfectly recognized and even some ...
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Stability of Fatigued Dislocation Wall Structure in Coarse Grained and Ultrafine Grained Aluminum against Monotonic Tensile Deformation
... The enhanced ductility of both CG and UFG Al at 77 K compared with that at 300 K (Figs. 2 and 3) has been known for many years. Some investigators have reported that both UTS and ductility of UFG Al become ...
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Effects of Temperature and Strain Rate on Plastic Deformation of Ultrafine Grained Copper Prepared by Equal Channel Angular Pressing
... in UFG materials since possible pile-up length scales as grain size d and is much shorter than that in traditional coarse- grained (CG) ...of UFG metals, more experiments are ...
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Factors Influencing Tensile Ductility of OFHC Cu Having Different Ultrafine Grained Structures
... is that a high fraction of high angle grain boundaries (HAGBs) is essential for better ductility. In addition to this common consensus, utilization of partial recrystallization, 1–3) strain gradient plasticity, 4) the ...
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Study of Thermal Stability of Ultrafine Grained Copper by means of Electron Back Scattering Diffraction
... that UFG Cu prepared by ECAP can exhibit differences as regards the stability of ...the UFG Cu of low purity exhibited better fatigue properties than UFG Cu of high ...The UFG materials ...
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Historical Studies by Polish Scientist on Ultrafine Grained Materials by Severe Plastic Deformation
... in materials, including the HPT method which he invented in the ...grained materials in his book, as well as in his other publications based on the X-ray diffraction (XRD) methods, the first book focusing on ...
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Superior Strength of Austenitic Steel Produced by Combined Equal-Channel Angular Pressing and Rolling Processing
... ultrafine-grained materials, produced by SPD at the first stage of ...of UFG materials on the features of ...equiaxed UFG structure, a structure was observed that was elongated in the ...
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Severe Plastic Deformation and Its Application on Processing Titanium: A Review
... bulk materials [26- ...some UFG materials such as copper, titanium and its alloys, steel, aluminum and magnesium ...the materials [38], ...
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Warm deformation behaviour of UFG CP-Titanium produced by I-ECAP
... Equal channel angular pressing (ECAP) is by far the most promising SPD technique available. It is capable of producing bulk UFG materials, large enough for practical applications [6]. Developed by Segal et ...
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Analyzing ethnic and cultural materials : insights into ELT materials
... Besides, the study is significant to tertiary level education as it intends to look at ER course as a subject that encourages critical thinking, social and communication skills. In other words, the study is important to ...
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<p>Biological response of chemically treated surface of the ultrafine-grained Ti–6Al–7Nb alloy for biomedical applications</p>
... features. UFG-AA samples of the Ti–6Al–7Nb alloy had an attractive effect on the cell membranes (flattening), and cell adhesions were preferen- tially induced (more details can be seen in Figures 7 and ...
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Piezomorphic materials
... piezomorphic materials now requires a theoretical description which captures the spatial dependency of the elastic ...piezomorphic materials will utilise, for example, strain-gradient theories [31-33] in ...
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Packaging materials
... ‘Wages sorters’ can be estimated per activity because data is available to estimate how many hours an employee spends on sorting with a sorting line, without a sorting line, sorting layer pads and rough sorting. This ...
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Performance of serological tests PGL1 and NDO LID in the diagnosis of leprosy in a reference Center in Brazil
... AMF: Alfredo da Matta Foundation; ELISA: Enzyme-linked immunosorbent assay; IgG: Immunoglobulin G; IgM: Immunoglobulin M; IPTSP/UFG: Instituto de Patologia Tropical e Saúde Pública/ Universidade Federal de Goiás; ...
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Grain Refinement and Mechanical Behavior of the Al Alloy, Subjected to the New SPD Technique
... testify to the UFG structure formation being accompanied by dynamic aging at ECAP-PC through 4 passes. As the precipitates were not found after the ECAP-PC through 1 and 2 passes, we can suggest that they are ...
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Supplementary Materials
... Puttarak, “α - Glucosidase and α - amylase inhibitory activities of medicinal plants in Thai antidiabetic recipes and bioactive compounds from Vitex. glabrata R[r] ...
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Materials, critical materials and clean-energy technologies
... power systems, and wind turbines [13, 14]. These studies evaluate supply risk on the basis of forward-looking calculations of the balance between production and demand for an element; competing technology demand; ...
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Fabrication and Testing of Composite Materials for Relace Plastic Materials
... It shows that when fiber loading increases the flexural strength of the fabricated composites decreases.The decrease in flexural strength is due to a poor interface bondin[r] ...
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The effects of concept mapping in game based learning
... Materials Materials and instruments used in this study are the game Lemonade Tycoon 2 New York, introduction materials for concept mapping, materials for students to construct a concept [r] ...
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