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Trans. Nonferrous Met. Soc. China 25(2015) 3297-3304 Thermal stability of electrodeposited nanocrystalline nickel assisted by flexible friction Biao 1,2, Zhen-feng HU3, Xiao-he WANG2, Bin-shi XU2 1...: Nanocrystalline nickel coating was prepared by flexible friction assisted electrodeposition technology in an additive-free Watts bath. The coating consists of massive equiaxial crystals with an average......
microcrystalline and nanocrystalline Ni XU Wei-chang, DAI Pin-qiang (College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China) Abstract: The bulk Ni with various... the mechanical properties among these Ni samples. The results show that the ductility in electrodeposited nanocrystalline (NC) Ni can be significantly enhanced with a higher strength by extending......
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is mainly related to the formation of 2?7 phase. Key words: rapid solidification; annealing; coercivity; nanocrystalline microstructure; SmCo 1 Introduction Precipitation hardened Sm(Co, Fe, Cu, Zr)z..., BARTOLOME J. Structural and magnetic investigation of Co-rich Sm-Co unidirectionally solidified alloys [J]. J Alloys Compd, 2007, 433(1/2): 129-139. [14] TANG H, LIU Y, SELLMYER D J. Nanocrystalline Sm12.5......
annealing at 400 °C for 1 h, the amorphous phase formed in the cold-rolled specimens was completely crystallized and an entirely nanocrystalline structure was achieved. The value of stress level of the upper plateau in this nanocrystalline alloy was measured as high as 730 MPa which was significantly higher than that of the coarse-grained Ni50Ti50 and Ti50Ni48Co2 alloys. Moreover......
; 文献标识码: A Microstructure and properties of nanocrystalline copper target material prepared... of 1.0-1.75GPa at 25℃, the bulk nanocrystalline Cu with high relative density of larger than 95% was obtained. The microstructure was investigated by TEM, XRD and FESEM analysis. The results show......
煅烧过程中出现了YAP相, 得到的粉体团聚严重, 烧结体密度很低. 关键词: YAG; 透明陶瓷; 纳米粉; 湿化学法 中图分类号: TQ174. 75 文献标识码: A Nanocrystalline YAG powders and translucent ceramics by wet-chemical method WEN Lei1, SUN Xu-dong2, QI Lu1... (AW) as the reagent and precipitants, respectively, the nanocrystalline yttrium aluminum garnet(YAG) powder was synthesized by the co-precipitation method. The precursor obtained through the AHC method......
thought to be beneficial to the anti-corrosion properties. Key words: corrosion; nanocrystalline materials; coating; thermal spray; nickel-based alloys ..., such as thermal sprayed nickel- or iron-based alloy coatings [3-4]. Nanostructured (or nanocrystalline) materials, usually characterized by a microstructural length scale in 1-200 nm, have received considerable......
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Novel preparation of big bulk-nanocrystalline Cu in large quantities CHU Guang(楚 广)1, 2, TANG Yong-jian(唐永建)2, LIU Wei(刘 伟)2, 3, YANG Tian-zu(杨天足)1 1. School of Metallurgical Science... under pressure of 1.0-2.0 GPa and at room temperature,and the nanocrystalline(nc) Cu with diameter of 10 mm and thickness of 8 mm, relative density of 99.4% of the theoretical density for pure Cu (8.96......
