منابع مشابه
Grain boundary relaxation strengthening of nanocrystalline Ni–W alloys
Timothy J. Rupert Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; and Department of Mechanical and Aerospace Engineering, University of California, Irvine, California 92697 Jason R. Trelewicz and Christopher A. Schuh Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachus...
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It is well-known that severe deformation to metals causes a direct grain refinement of the matrix without special heat-treatments due to the mechanism of dynamic continuous recrystallization (DCR). However, the microstructural revolution during severe deformation is seemed to be different depending on the deformation mode, namely the direction of deformation. In general, multi-directional defor...
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Microstructure and properties of the Al-6Si-0.3Mg alloys containing scandium (0.2 to 0.6wt %) were investigated. The microstructure was observed by optical microscopy, the hardness was determined by Vickers tester and phase transformation was investigated by differential scanning calorimetry (DSC) technique. The results showed that scandium can refine dendrites, enhance hardness in the aged all...
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Control of microstructure parameters that affecting the Al-Ti-C master alloys grain refining efficiency is leading to improve the aluminum grain refinement. This study was an attempt to produce Al-Ti-C master alloys that provide these controlling factors with relying on the solute effect theory. The produced master alloys were examined by using scanning electron microscopy (SEM), energy-dispers...
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The current study adopted a quantitative approach to investigating the mechanical properties, and their relationship to the microstructural features, of precipitation-strengthened 6061 aluminum alloy processed through accumulative roll bonding (ARB) and aging heat treatment. To serve this purpose, the contributions of different strengthening mechanisms including grain refinement, precipitation...
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ژورنال
عنوان ژورنال: Materia Japan
سال: 1997
ISSN: 1340-2625,1884-5843
DOI: 10.2320/materia.36.1062