نتایج جستجو برای: ultrafine microstructure
تعداد نتایج: 44214 فیلتر نتایج به سال:
The accumulation of defects, and in particular He bubbles, can have significant implications for the performance of materials exposed to the plasma in magnetic-confinement nuclear fusion reactors. Some of the most promising candidates for deployment into such environments are nanocrystalline materials as the engineering of grain boundary density offers the possibility of tailoring their radiati...
Water jet cavitation peening (WJCP) was used to strengthen the surface of nickel-based alloy 600. Residual stress, hardness, roughness, microstructure, and short-period oxidation behavior in untreated (UT) WJCP-treated 600 were characterized. A continuous oxide film formed on after a short period exposure, while it discontinuous UT specimen. The change attributed ultrafine grain dislocation str...
BACKGROUND Ultrafine particles have been hypothesised to be an important contributing factor in the toxicity and adverse health effects of particulate air pollution (PM10) and nanoparticles are used increasingly in industrial processes. AIMS To compare the ability of ultrafine and fine particles of titanium dioxide and carbon black to induce inflammation, cause epithelial injury, and affect t...
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