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Enhancing the crystalline degree of carbon nanotubes by acid treatment, air oxidization and heat treatmentChensha Li, Baoyou Zhang, Xingjuan Chen, Xiaoqing Hu, and Ji Liang Department of Mechanical... approaches of treating carbon nanotubes (CNTs) including acid treatment, air oxidization and heat treatment at high temperature were studied to enhance the crystalline degree of carbon nanotubes. High......
Si3N4 nano-microsphere synthesized by cathode arc plasma and heat treatment GENG Zhong-rong(耿中荣)1, YAN Peng-xun(闫鹏勋)2 , FAN Duo-wang (范多旺)1, YUE Guang-hui (岳光辉)2 1. National...; Abstract: The Si3N4 microcrystals with a hollow sphere structure were prepared by using the simple heat treatment of the Si3N4 flakes, which were prepared......
高强高韧铝合金的研究现状及发展趋势 夏长清1,刘昌斌1,戴晓元1 (1.中南大学,材料科学与工程系,湖南,长沙,410083) 摘要:对高强高韧铝合金的发展情况进行了全面的评述.讨论了高强高韧铝合金微观组织与性能之间的关系,以及铝合金的主要强化机制.简要介绍了回归再时效(RRA),固溶强化等热处理新技术,并就今后的研究开发提出了建议. 关键词:高强高韧铝合金; 固溶强化; 回归再时效(RRA); 抗应力腐蚀性(SCR); [全文内容正在添加中] ......
HEAT TREATMENT STRENGTHENING EFFECTS OF RARE EARTHS ON Mg-9Al ALLOY Y.S.Wang1,W.J.Ding2,Q.D.Wang2,J.Z.Yu1 (1.Shanghai Cosmopolitan Automobile Accessory Co. LTD, Shanghai 200083, China;2.School...%), respectively. Influence of rare earths (RE) on microstructureand strength in both T4 (solute heat treatment) and T6 (solute heat treatment andartificial ageing treatment) were investigated......
Key Technique of Austenitic Stainless Steel on-line Solution Treatment LIU Shuang1,ZHAO Fei2,LI Ying2,LI Wei-juan1,LI Sheng-li1 (1.Anshan University of Science and Technology, Anshan, 114044;2.Dalian Jinniu Co. Ltd. , Dalian, 113000, P. R. China) 摘要:Generally the methods of solution treatment of austenitic stainless steel are bifurcated on-line solution and off-line solution . For a founded......
Effects of thermohydrogen treatment on microstructures of α+β and β titanium alloy as-cast ZHAO Yong-qing(赵永庆), CAO Xing-min(曹兴民), XI Zheng-ping(奚正平) Northwest Institute for Nonferrous Metal...> Abstract: The effects of thermohydrogen treatment on the microstructures of TC21 and Ti40 alloys as-cast were researched. The results show that the β phase content increases after charged hydrogen......
EFFECT OF DEEP COLD TREATMENT ON TWO CASE HARDENING STEELS C.H. Surberg1,P. Stratton2,K. Lingenh3 (1.V-Research Center of Competence for Tribology and Technical Logistics GmbH, Dornbim, Austria... data on deep cold temperatures below -70℃ or treatment times longer than an hour or two. This study set out to determine the effects of such deep cold treatments at temperatures -150℃ C for 24 h.The......
J. Cent. South Univ. Technol. (2009) 16: 0558-0562 DOI: 10.1007/s11771-009-0093-4 Alkaline treatment kinetics of calcium phosphate by piezoelectric quartz crystal impedance ZENG Li-ping(曾丽萍)1...; Abstract: Calcium phosphate film was prepared by electrochemical deposition technology. Subsequently, the alkaline treatment process of calcium......
Computer Aided Design of Heat Treatment for AISI P20+Ni Mold Steel with Good Machinability HU Xin-bin1,GAO Wen3,HE Yan-lin1,LI Lin1 (1.Dept. Mater. Sci. & Eng., Shanghai University, 149 Yanchang...:Computer aided design of heat treatment for AISI P20 mold steel with good machinability is attempted to proceed by the commercial software package Thermo-Calc (TCP+DICTRA). Through experimental......
treatment for large number of β-Mg17Al12 phase precipitated discontinuously at the grain boundaries notwithstanding the grains are fined a little. Key words: AE42 alloy; indentation creep; microstructure; creep resistance; heat treatment 因减轻汽车车身质量可减少汽车尾气排放,作为目前最轻的结构金属材料,镁合金越来越受到关注......
