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Showing 1 to 6 of 6 for “"grain boundary strengthening"”.
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Grain Boundary Pinning Approach for Manufacturing High-Strength Nanocrystalline Aluminum Alloys
… as a result of crystallite size reduction and grain boundary strengthening by the addition of Mg dopant is discussed. The current study also examined the total energy consumption and manufacturing costs involved in the production process. The cost analysis revealed that manufacturing a kilogram …
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BULK NANOSTRUCTURED STEELS FOR NUCLEAR REACTOR AND EXTREME ENVIRONMENT APPLICATIONS
… (HPT) were used to produce bulk ultra-fine grained and nanocrystalline Kanthal-D [KD; Fe-21Cr-5Al-0.026C (wt.%) alloy] which resulted in an improvement in strength of up to 3 times their nominal strength from grain boundary strengthening, and dislocation strengthening. Dynamic recovery was …
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Thermal Stability, Microstructures and Mechanical Properties of Nanostructured/Ultrafine Structured Cu-5vol.%Al₂O₃ Nanocomposites Fabricated by High Energy Mechanical Milling and Powder Compact Extrusion
… and better high temperature performance due to grain boundary strengthening, nanoparticle strengthening and Zener pinning effects compared to their metal matrices. On the scientific aspect, there is the question of whether the linear superposition of basic strengthening mechanisms, which is …
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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
… with the goal of producing an ultrafine grain material with enhanced mechanical properties. Three titanium alloys were studied, commercially pure titanium Grade 4, Ti 13Zr, and Ti-6Al-7Nb, allowing for the systematic investigation of the processing response and strengthening mechanisms …
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Microstructure property development in friction stir welds of aluminim based alloys
… the basemetal microstructural parameters (e.g. grains, intermetallic particles, stored energy) on the microstructure-property development has not been previously investigated, and is the subject of the present work. To rationalise the microstructural and local strength (hardness) development, …
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Microscale mechanical characterization of materials for extreme environments
… relationship between their microstructure and grain boundary deformation behavior. Previous molecular dynamics simulations suggested that solute additions to grain boundaries can enhance the strength of nanocrystalline metals, but there has been a lack of experimental studies investigating this …