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Showing 1 to 20 of 50 for “"metallic materials"”.
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Indentation induced deformation in metallic materials.
… The change in behavior with indentation and the materials responses to deformation at low and high loads is addressed in this study. A study on indenter geometry, which has a huge influence on the contact area and subsequently the hardness and modulus value, has been attempted. Deformation …
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A continuum constitutive model for amorphous metallic materials
… and plastically-dilatant isotropic materials has been developed. The constitutive model has been implemented in a finite element program, and the numerical capability is used to study the deformation response of amorphous nietallic glasses. Specifically, the response of an amorphous …
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The grinding of leather and other non-metallic materials
Thesis (B.S.) Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1952.
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A Burn Ratio That Predicts the Relative Extent of Combustion in Metallic Materials.
The objective of this work was to gain an understanding of the severity of combustion of metals in oxygen environments. Fires have occurred in oxygen compressors, pipelines, valves and storage tanks. A thermodynamic burn ratio is proposed that predicts the severity of combustion of metals in oxygen …
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Numerical analysis of compressive residual stresses in metallic materials as a result of shot peening
… behaviour and elastic-plastic deformation a metallic material undergoes during shot peening. An experimental platform was established by performing shot peening on material specimens while varying certain shot peening parameters. These parameters included shot size, shot velocity (related to …
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High Temperature Corrosion Studies of Metallic Materials in High Temperature Gas-Cooled Nuclear Reactor Helium Environment
Made available in DSpace on 2017-07-06T18:55:04Z (GMT). No. of bitstreams: 3 Lee_Daniel_K_MS.pdf: 75457165 bytes, checksum: 1c352f8a0eaf27a3c60286c777a82659 (MD5) Lee_Daniel_K_MS_ABS.pdf: 628459 bytes, checksum: 9adc2363b16d312ea8d65075fd1b4b1f (MD5) license.txt: 4813 bytes, checksum: …
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In Vitro Polarization Evaluation of Carbon-Metal Galvanic Couples.
… been recognized as a problem with synthetic, metallic materials for applications in biological environments. This is one of the main reasons type 316L stainless steel and Ti-6Al-4V ELI-grade alloy have emerged as two of the more widely used metallic biomaterials. In recent years with more and …
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Three-dimensional metallic architectures for photonic and energy storage applications
Materials exhibiting multi–dimensional structure with characteristic feature sizes ranging from the nanometer scale to the micrometer scale have extraordinary potential for emerging applications that cannot be achieved using simple, non–structured materials. Much work in the area has focused on the …
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Interacting fermions : a holographic approach/
Most materials are either metals or insulators. When they are metals, their electronic properties are usually described by Landau's Fermi liquid theory. That is, they behave more or less like a free Fermi gas, with a few modifications due to electron-electron interactions. However, there exist a …
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Impact of reactor environment on quenching heat transfer of accident tolerant fuel cladding
… Zirconium-based cladding material and other metallic materials are being considered to improve the corrosion resistance and reduce the generation of hydrogen at high temperatures. Major ATF coating choices under consideration include chromium as a coating, iron-chromium-aluminum alloys …
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Effect of heat treatment on the mechanical and corrosion properties of the CoCrNiFeAl HEAs
… alloys (HEAs) are a relatively new class of metallic materials that have shown great potential for use in extreme environments, such as high temperatures and corrosive conditions. Among the different types of HEAs, CoCrNiFeAl HEAs are potential materials for a wide range of applications, …
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Hardening Cohesive/Overlapping Zone Model and Fractal Approach to Ductile Fracture
… COD) break down, especially for ductile materials and large crack extensions. In addition, even at small scale yielding, K, G, J- integral and COD are limitedly used to distinguish the onset of unstable fracture, without any concern regarding the pre-onset and post-reaction. On the other …
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New Computational Methodologies for Microstructure Quantification
… methods for material property prediction for metallic microstructures while indicating the context and benefit for microstructure- sensitive design. From this, the use of shape moment invariants is offered as solution to quantifying microstructure topology numerically using images. This offers …
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Mechanical Properties of Porous Magnesium Reinforced with Carbon Nanofiber
… properties, being lower than most structural metallic materials. Thus, a reinforcement phase is often employed to increase the mechanical properties of porous magnesium. Carbon nanofiber is used as the reinforcement phase in this experimentation. Based on the experimental results, high …
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Investigation of indentation derived creep response using constant load and constant strain rate methods
… creep test may be impractical for small scale materials. Accordingly, instrumented indentation techniques are frequently employed. This study concerns the employment of instrumented indentation to characterize the power-law creep response of metallic materials. Indentation derived creep …
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Fiber Orientation Prediction and Strength Evaluation of Composite Spur Gears Reinforced by Discontinuous Fiber
<p>Composite materials have been extensively used for their important role in attenuation of components design, low specific weight, high mechanical performance, and excellent corrosion resistance offer significant advantages over metallic materials. These superlative properties can be attained by …
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Design and optimisation of adhesively bonded overlap joints
… industry to join structural components of metallic and composite materials. The most common joint configuration is the lap shear joint, which has been investigated widely and several ideas have been proposed to improve its performance. For example, the introduction of fillets at the overlap …
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Experimental Investigation of Enhanced Damage Resistant Fiber Metal Laminates
… structures made from fiber reinforced polymeric materials sandwiched between layers of thin metal alloy sheets. FMLs combine the advantages of metallic materials and fiber reinforced matrix systems. Some of these advantages include: lighter weight, enhanced impact tolerance, improved corrosion …
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Engineered biomolecular interactions with inorganic materials : sequence, binding, and assembly
… capabilities for integrating advanced materials into medicine and electronics. In particular, peptides have exhibited the ability to specifically bind to and/or control the synthesis of diverse inorganic and metallic materials including those with electronic, magnetic, and optical …
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