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homogeneous precipitation After the mixing of titanyl sulfate solution, urea solution and DBS, the mixture was put in pressurized water reactor and the reaction system was heated to 140 °C with rapid... nm, respectively. The results indicated that ultrasound almost had no effect on the TiO2 grain size during the homogeneous precipitation process. It might be because the instantaneous micro-environment......
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: Formation of GP zones and θ″ precipitates is quite rapid and likely to precede the precipitation of the Ω phase. As the ageing time increases, the proportion of phases on {001}α diminishes and this Cu... Modeling of whole process of ageing precipitation and strengthening in Al-Cu-Mg-Ag alloys with high Cu-to-Mg mass ratio HOU Yan-hui(侯延辉)1, 2, 3, GU Yan-xia(谷艳霞)1, 2, LIU Zhi-yi (刘志义)1, 2, LI Yun......
Trans. Nonferrous Met. Soc. China 22(2012) 1112-1117 Damping capacity of high strength-damping aluminum alloys prepared by rapid solidification and powder metallurgy process LI Guo-cong1, MA Yue1... Materials, Beijing 100095, China Received 9 September 2011; accepted 28 March 2012 Abstract: Two kinds of high strength-damping aluminum alloys (LZ7) were fabricated by rapid solidification and powder......
and nano-precipitation behaviors and mechanism of Ti micro-alloyed steel[D]. Shenyang: Northeastern University. College of Material and Metallurgy, 2015: 2-12. [20] 雍岐龙. 钢铁材料中的第二相[M]. 北京: 冶金工业出版社,2006...:A 文章编号:1672-7207(2018)03-0518-11 Precipitation behaviors of carbides and carbonitrides in DH36 high-strength ship plate steel SHI Xiao1, 2, WU Jianzhong1......
are in the allowed range, while the contents of impurities of O, H increase evidently. This may be explained by the precipitation of hydride during the rapid cooling process, which results in the sharp descent... Microstructure of a two-phase titanium alloy by rapid solidification technique LIU Xing-xing(刘星星)1, 2, LONG Ling(龙玲)1, 2, YAN Biao(严彪)1, 2, TANG Ren-jian(唐人剑)1, 2, ZOU Hong-liu(邹洪流)1, 2 1......
are identified by means of HRTEM, which may be beneficial to the improvement in thermal stability of the alloy. Key words: Mg-Zn-Ca alloy; rapid solidification; microstructure; micro-hardness ...; Abstract: Ternary alloys based on the Mg-Zn-Ca system were produced by twin-roll rapid solidification. The alloys were characterized by OM, SEM......
textured nanocomposite Nd9Fe84.5Nb0.5B6 ribbons were obtained by rapid solidification at wheel speeds from 15 to 20 m·s-1.X-ray diffraction(XRD)shows that these ribbons are preferentially orientated... of wheel speed.The texture of Nd2Fe14B phase seems to be caused by the preferential growth of the crystal nuclei favorable orientation with their c-axes along the temperature gradient during rapid......
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precipitation and nucleation process is under homogeneous solution system. Therefore, crystal diameter is small enough, even can achieve nanometer level and micro level. The hydrolysis reaction of urea: →(3... precipitation method CHEN Juan(陈娟), HUANG Zhi-liang(黄志良), CHEN Chang-lian(陈常连), LI Wen-zhao(李文昭), XU Wei-rong(徐伟荣) School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430074......
