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Showing 1 to 14 of 14 for “"deformation processing"”.
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Polycrystal plasticity : constitutive modeling and deformation processing
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1992.
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Polycrystalline plasticity and its applications to deformation processing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Polycrystalline plasticity : application to deformation processing of lightweight metals
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
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Shear-based Deformation Processing and Characterization of Electrical Steel Sheet
Processing of electrical steel (i.e., iron-silicon) alloys containing up to 6.5wt%Si into sheet is demonstrated by application of highly confined shear deformation in the form of metal cutting. Iron-silicon (Fe-Si) alloys, of major interest to electromagnetic applications, are characterized by poor …
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Microstructure-strength relationship of a deformation-processed aluminum-magnesium composite
The Al-Mg composite was deformation processed by extrusion, swaging and wire drawing. Two compositions, Al-13vol%Mg and Al-20vol%Mg were used to compare the influence of second phase content. The microstructure of the composites was convoluted, ribbon-shaped second phase Mg filaments in Al matrix, …
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The effects of isothermal deformation and annealing on the microstructure of nickel-aluminum-bronze propeller material
… thesis is a study of annealing and isothermal deformation characteristics of cast Nickel-Aluminum Bronze (NAB) in relation to Friction Stir Processing (FSP) of this material. Cast NAB is widely utilized by the U.S. Navy in the production of propellers for surface vessel and submarines. FSP is a …
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Deformation processed IMC-reinforced metal matrix composites
… temperatures, and “metallic-like" in their deformation behavior above their brittle-to-ductile transition temperature, thus IMCs create opportunities to create unique in-situ composite microstructures otherwise unattainable using conventional ceramic reinforcements. CP titanium composites …
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Temperature and rate dependent finite strain behavior of poly(ethylene terephthalate) and poly(ethylene terephthalate)-glycol above the glass transition temperature
… it crystallizes at large strains during warm deformation processing. The imparted crystallinity increases its stiffness and strength, improves its dimensional stability, and increases its density. The crystallization process and the stress-strain behavior above the glass transition depend …
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Development of Low-Cost Polycrystalline Nickel-Base Superalloys for Gas Turbine Applications
… 718Plus, whilst retaining good amenability to deformation processing and joining operations. The important properties required of polycrystalline Ni-base superalloys are discussed alongside an initial comparison of current commercially available materials and a potential class of candidate …
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A study of direct powder rolling route for CP-titanium
… to achieve its full density by additional hot deformation processing. In this work, a purpose-built gravity fed vertical powder rolling mill with a roller diameter of 265 mm and a roller width of 150 mm was used. Johanson's powder rolling model has been implemented to simulate performance and a …
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Effects of high shear deformation from equal channel angular pressing-conform and post thermal mechanical processing on the microstructural and mechanical properties of titanium alloys
… for aerospace, automotive, sporting, chemical processing equipment, and medical industries. For medical applications, commercial purity titanium, Ti-13Zr, and Ti-6Al-7Nb, are particularly attractive because of their higher biocompatibility than Ti-6Al-4V which is the most widely used titanium …
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Microstructure and tensile performance evolution during Titanium - 6 Aluminium - 4 Vanadium (Ti-6Al-4V) temporary hydrogen treatment
… (HDH), thermohydrogen processing (THP) and thermohydrogen and deformation processing (THDP). Cast Ti-6Al-4V was hydrogenated to 20 at.%H and subsequently dehydrogenated at 675⁰C (HDH 675), 700⁰C (HDH 700), 725⁰C (HDH 725) and 750⁰C (HDH 750). Hydrogenated Ti-6Al-4V was …
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Characterization and consolidation of a high temperature aluminum transition metal powder alloy
… the alloy determined an increase of 100°C in the deformation transition temperature relative to a representative high temperature aluminum wrought alloy (Al 2618-T61), which is associated with the transition to deformation with dislocation climb. Room temperature tensile testing demonstrated only …
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Self-organization in immiscible alloy systems under irradiation and severe plastic deformation
… to alloys being processed through severe plastic deformation. In each of these cases, there exists external dynamical forcing which keeps the material in non-equilibrium conditions. In the case of structural materials in a nuclear reactor environment, there are high fluxes of neutrons which can …