Results 161 to 170 of about 1,054 (210)
Surface Alloying of Mg Alloys After Surface Nanocrystallization
Journal of Nanoscience and Nanotechnology, 2008 Surface nanocrystallization using a surface mechanical attrition treatment effectively activates the surface of magnesium alloys due to the increase in grain boundary diffusion channels. As a result, the temperature of subsequent surface alloying treatment of pure Mg and AZ91 alloy can be reduced from 430 °C to 380 °C.
Ming-Xing Zhang
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Surface nanocrystallization of hydroxyapatite coating
Acta Biomaterialia, 2008Nanocharactered biomaterials, such as nanopowders, nanocrystalline compacts and nanostructured films, as well as materials with nanoscale roughness, have attracted much attention recently, due to their clear effects on cell response. Surface nanocrystallization of plasma-sprayed hydroxyapatite (HA) coating can be realized by conventional post-heat ...
Yu-Peng Lu, Yan-Mei Chen, Shi-Tong Li
exaly +3 more sources
Surface nanocrystallization of Ni3Al by surface mechanical attrition treatment
Materials Letters, 2006Abstract The mechanical property and microstructure evolutions of Ni3Al intermetallic compound subjected to surface mechanical attrition treatment (SMAT) were investigated in relation to surface nanocrystalization. Grain size in topmost surface of SMATed Ni3Al alloy was refined to a minimum size of about 10 nm, and then increased with the enhancement
Jiangwei Ren, Aidang Shan
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Review of recent developments in surface nanocrystallization of metallic biomaterials
Nanoscale, 2021Surface nanocrystallization by surface severe plastic deformation imparts enhanced biomechanical and biological performances to metallic biomaterials.
Srijan Acharya +2 more
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Surface Nanocrystallization for Bacterial Control
Langmuir, 2010Stainless steel is commonly used in indwelling medical devices, food preparation, and heavy industry. Bacteria display reduced adherence to nanocrystallized stainless steel. In this article, we present quantitative information on the surface adhesive force, surface electron work function, and bacterial adherence to surfaces of nanocrystallized ...
Bin, Yu +4 more
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Surface nanocrystallization modification of anhydrite
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2012Abstract This paper reported a successful preparation of CaCO3/anhydrite composites of anhydrite coated with nanosized CaCO3 by chemical precipitation route using the Ca(OH)2–H2O–CO2 reaction system. The samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and BET ...
Wu Zhao, Huaming Yang, Chengli Huo
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Surface Nanocrystallization by Surface Mechanical Attrition Treatment
Materials Science Forum, 2008Based on strain-induced grain refinement, a novel surface mechanical attrition treatment (SMAT) technique has been developed to synthesize a nanostructured surface layer on metallic materials in order to upgrade their overall properties and performance without changing their chemical compositions.
N.R. Tao, Jian Lu, Ke Lu
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Experimental assessment and simulation of surface nanocrystallization by severe shot peening [PDF]
Acta Materialia, 2015 Surface nanocrystallization is an effective approach to bypass the difficulties of synthesizing bulk nanocrystalline material and yet exploit its unique advantages in service.
Kisub Cho +2 more
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Surface Self-nanocrystallization in Copper Electroforming
Journal of Materials Engineering and Performance, 2018The coarse columnar grain layer generated on top of electroforming deposits leads to low surface strength and poor global performance of deposits. Here, we introduce a particle abrasive-induced surface self-nanocrystallization process, which is a part of the electroforming process rather than involving complex poststeps using special equipment.
Chunjian Shen, Zengwei Zhu, Di Zhu
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Nanocrystallization of zirconium subjected to surface mechanical attrition treatment
Nanotechnology, 2008A nanostructured surface layer with thickness of about 20 µm was formed on commercially pure zirconium using surface mechanical attrition treatment (SMAT). The microstructural features of the surface layer were systematically investigated using optical microscopy (OM), x-ray diffraction (XRD), transmission electron microscopy (TEM) and high-resolution ...
L, Zhang, Y, Han, J, Lu
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