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J. Cent. South Univ. (2016) 23: 2364-2372 DOI: 10.1007/s11771-016-3295-6 Safety thickness analysis of tunnel floor in karst region based on catastrophe theory YANG Xiao-li(杨小礼), XIAO Hai-bo(肖海波.... The expressions of critical safety thickness were derived with necessary and sufficient conditions. The method was applied to the practical engineering. Some parameters related to the stability were......
Coating thickness control in continuously fabricating metallic glass-coated composite wiresBao-yu Zhang,Xiao-hua Chen,Zhao-ping Lu,Xi-dong HuiState Key Laboratory for Advanced Metals and Materials.... The effects of processing parameters, including the drawing velocity and coating temperature, on the coating thickness were investigated. It is found that the coating thickness increases......
X射线测厚影响因素分析,技术进展及其在冶金工业中的应用(上)马竹梧1(1.北京市冶金自动化研究设计院)摘 要:主要叙述X射线测厚仪的工作原理,分析射线强度,统计误差以及被测物的材质,温度,表面附着水层,倾斜角度等对测厚精度的影响及其克服方法.叙述包括X射线管,检测元件,控制电路,测量方式以及计算机应用等的进展.最后介绍X射线测厚仪的组成,主要性能的实例和在国内的使用情况,说明建立X射线测厚仪产业的必要性并给出建立方法的建议.关键词:X射线测厚仪; 厚度控制; 板形......
J. Cent. South Univ. Technol. (2010) 17: 899-905 DOI: 10.1007/s11771-010-0574-5 Effects of thickness and elastic modulus on stress condition of fatigue-resistant coating under rolling contact... thicknesses and elastic modulus ratios of coating to substrate were introduced, and the effects of thickness and elastic modulus ratio on the stresses were addressed. The calculation results show......
Characteristics of shell thickness in a slab continuous casting moldDi-feng Wu1) ,Shu-sen Cheng1) ,and Zi-jian Cheng2) 1) School of Metallurgical and Ecological Engineering,University of Science... in the continuous casting process is to control shell thickness in the mold. A numerical simulation on the turbulent flow and heat transfer coupled with solidification in the slab mold using the volume......
A data-driven framework to predict the morphology of interfacial Cu6Sn5 IMC in SAC/Cu system during laser solderingAnil Kunwar1,2,Lili An3,Jiahui Liu3,Shengyan Shang3,Haitao Ma3,Xueguan Song21... of interracial intermetallic compound(IMC) in Sn-xAg-yCu/Cu(SAC/Cu) system.Six types of SAC solders with varying weight proportion of Ag and Cu,have been processed with fiber laser at different......
Ni添加量对铜基板和石墨烯铜基板的界面反应和IMC生长的影响(英文)蔡洪明1,刘洋1,2,张浩1,2,李胜利1,孙凤莲1,张国旗21. 哈尔滨理工大学2. 代尔夫特理工大学摘 要:研究了钎焊与时效过程中,在Sn0.7Ag0.5Cu(SAC0705)钎料与Cu基板和石墨烯Cu基板界面处金属间化合物(IMC)的形成与演变.采用加热平台制备焊接试样并在120℃时效600h.结果表明,界面金属间化合物在时效过程中增厚.SAC0705/Cu和SAC0705/G-Cu 2种焊接界面金属间化合物均为Cu6Sn5.当钎料中添加Ni元素后,Cu6Sn5化合物转变为(Cu, Ni)6Sn5.随着钎料中Ni元素含量的增大,2种基板上的界面金属间化合物厚度先增加后减小.此外,随着Ni含量增大,化合物生长速率降低.石墨烯Cu基......
Effect of film thickness on magnetic properties of Cr/SmCo/Cr films李宁1,李宝河2,冯春1,李明华1,于广华11. Department of Materials Physics and Chemistry,University of Science and Technology Beijing2. Department of Physics,Beijing Technology and Business University摘 要:Cr/SmCo/Cr films with different SmCo thickness were deposited on glass substrates by magnetron......
Effect of film thickness on magnetic properties of Cr/SmCo/Cr films李宁1,李宝河2,冯春1,李明华1,于广华11. Department of Materials Physics and Chemistry,University of Science and Technology Beijing2. Department of Physics,Beijing Technology and Business University摘 要:Cr/SmCo/Cr films with different SmCo thickness were deposited on glass substrates by magnetron......
. The cathode Cu pad consumption (δ) increases linearly with the loading time and the consumption rate shows parabolic curve relationships with sample temperature. The anode interface IMC thickness (δ1... that anode interfacial IMC thickness increased linearly with the square root of time [7-9]. CHAO et al [10] showed that the thickness of anode IMC layer increased linearly with the time. The IMC......