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止点(固相率fs=1)绘制成分曲线. 图1 脉冲超声施振示意图及取样部位 Fig. 1 Schematic images of pulsed ultrasonic applying vibration(a) and sampling position(b) 表1 ZL205A合金的主要化学成分 Table 1 Main chemical composition of ZL205A alloy (mass fraction, %) 表2 脉冲超声工艺参数 Table 2 Pulsed ultrasonic technical parameters 2 结果及分析 2.1 脉冲超声工艺对ZL205A合金微观组织的影响 不同脉冲超声功率,施振时间,脉冲超声频率下ZL205A合金的微观组织与晶粒尺......
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Preparation of BiFeO3 thin films by pulsed laser deposition method ZHANG Guan-jun(张冠军), CHENG Jin-rong(程晋荣), CHEN Rui(陈 蕊), YU Sheng-wen(俞圣雯), MENG Zhong-yan(孟中岩) School of Materials Science... by the pulsed-laser deposition (PLD) technique at a low temperature of 450℃. The XRD results indicate that the BFO thin films are of perovskite structure with the presence of small amount of second phases......
Corrosion Resistance of AZ91 Mg Alloy Modified by High-Current Pulsed Electron BeamPeng-Peng Wu,Kun-Kun Deng,Kai-Bo Nie,Zhong-Zhong ZhangShanxi Key Laboratory of Advanced Magnesium-Based Materials, College of Materials Science and Engineering,Taiyuan University of Technology摘 要:The high-current pulsed electron beam(HCPEB) treatment with current density......
; 涂层; 脉冲电沉积; 恒电位沉积 中图分类号: TQ153 文献标识码: A Pulsed cathode electrodeposition of hydroxyapatite coatings ZHAO Zhong-wei1, CHEN Ai-liang1, CHEN Xing-yu1, SUN Pei-mei2, LI Hong-gui1 (1. School..., China) Abstract: Pulsed cathode electrodeposition was compared with potentiostatic one to prepare hydroxyapatite coatings. The results of pulsed electrodeposition show that there exists a relaxation......
INFLUENCE OF PULSED MAGNETIC FIELD ON MICROSTRUC- TURES AND MACRO-SEGREGATION IN 2124 Al-ALLOY G.M.Lu1,B.J.Zhang1,Q.X.Ba1,C.Y.Ban1,J.Z.Cui1 (1.P.O. Box 317, The Key Laboratory of Electromagnetic... (PMF) was applied during solidification. It is found through experi-ments that a remarkable change occurs in the solidification structures of 2124 Al-alloyunder pulsed magnetic field. The eutectic......
Trans. Nonferrous Met. Soc. China 29(2019) 735-740 Effect of pulsed current on AZ31B magnesium sheets during annealing Kai LIU1,2, Xiang-huai DONG1, Wen SHI1 1. National Engineering Research Center... Abstract: The annealing tests heated by pulsed current (PC) or furnace for AZ31B magnesium sheets were carried out, and the effects of PC on the microstructure and dislocation density of the alloy were......
高密度脉冲电流对2024铝合金凝固组织的影响 姚可夫1,巴启先2,崔建忠2,訾炳涛1,刘文今1 (1.清华大学,北京,100084;2.东北大学,辽宁,沈阳,110004) 摘要:研究了把高密度脉冲电流以外部瞬间能量和环境作功的形式注入到凝固过程中的高熔点2024铝合金熔体以细化其凝固组织.结果表明,高密度脉冲电流可以显著细化其凝固组织.讨论了高密度脉冲电流细化凝固组织的机理,指出了需要进一步解决的新问题. 关键词:脉冲电流; 凝固组织; 细化; pulsed current; solidification structure; refinement; [全文内容正在添加中] ......
of pulsed power and the appropriate amount of RE addition based on microhardness. Effect of RE addition and pulsed current on the mechanism of co-electrodeposition was also investigated and compared...Mechanism and microstructure of nickel-ceria composite coatings prepared by pulse current deposition under the ultrasonic field周小卫1,沈以赴1,郑莹莹1,靳惠明21. College of Materials Science and Technology......
of pulsed power and the appropriate amount of RE addition based on microhardness. Effect of RE addition and pulsed current on the mechanism of co-electrodeposition was also investigated and compared...Mechanism and microstructure of nickel-ceria composite coatings prepared by pulse current deposition under the ultrasonic field周小卫1,沈以赴1,郑莹莹1,靳惠明21. College of Materials Science and Technology......