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be improved by using two passes double side welding technique with lesser beam power. BALASUBRAMANIAN et al [14] developed mathematical models to predict the tensile properties of pulsed current... transformation and resultant microstructure. The welded joints of Ti-6Al-4V alloy were fabricated by gas tungsten arc welding (GTAW), laser beam welding (LBW) and electron beam welding (EBW) processes......
Competition between Band Filling and Steric Effect in Ordered Double Perovskites Sr2-xLaxMnMoO6 Ji Xiangling1,Zhao Junchai1,Tian Shizhe1,Qiao Congde1,Jiang Bingzheng1 (1.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China) Abstract:The ordered double perovskites, Sr2-xLaxMnMoO6, were prepared......
; Numerical simulation of cyclic behavior of double sand lenses...; Abstract: A two-dimensional numerical model was used to explain the liquefaction mechanism of double sand lenses and the corresponding soil deformation......
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(13) 计算得l=2.34 m.出于施工安全考虑,取l=2.50 m. 结合隧道设计资料,汇总双层预支护体系分析模型计算参数,如表2所示. 表2 双层预支护模型主要计算参数 Table 2 Main calculation parameters of double layered pre-support model 3.2 计算模型验证 为证明施工阶段综合管廊沉降符合模型分析结果,检验理论模型的可... Junsheng. Numerical analysis of finite element for double-deck pipe shed's reinforcement for soil layer in tunnel construction under expressway[J]. Highway Engineering, 2014, 39(3): 284-289. [15] SHI......
J. Cent. South Univ. (2017) 24: 929-936 DOI: 10.1007/s11771-017-3495-8 Fire resistance performance of glulam beam CHEN Chang-kun(陈长坤), YANG Jian(杨建), CHEN Jie(陈杰), ZENG Jia-wei(曾嘉伟), WANG Wei-yu(王玮玉... Heidelberg 2017 Abstract: A glulam beam with the size of 4700 mm×300 mm×480 mm (L×W×H) was tested in the furnace to investigate the fire resistance performance of glulam beam according to the temperature......
Improvement of Wear Resistance of Magnesium Alloy AZ91HP by High Current Pulsed Electron Beam Treatment JIANG Li-min1,ZHOU Ji-yang1,DONG Chuang1,GAO Bo1,ZOU Jian-xin1,HAO Sheng-zhi1 (1.State Key... of magnesium alloy AZ91HP (9wt%Al, 0.5wt%Zn, 0.5wt%Mn, Mg remaining percentage) by high current pulsed electron beam (HCPEB) treatment was studied in this paper. The secondary phase Mg17Al12 is nearly......
异型坯连铸双浸入式水口浇铸技术模拟研究及工业实践杜松林1,2,包燕平1,王建军1(1.北京市北京科技大学 冶金与生态工程学院2.安徽省马鞍山市马钢第三钢轧总厂安徽马鞍山)摘 要:通过数学物理模拟以及工业应用实践,研究了异型坯结晶器内单,双浸入式水口浇铸时流场特征及实际冶金效果,优化了双浸入式水口的设计参数.模拟研究结果表明,双浸入式水口浇铸有利于异型坯结晶器内流场的均匀性和对称性,避免了单水口浇铸时局部区域流体流动强烈现象,改善结晶器液面的稳定性和波动均匀性;双浸入式水口最优设计参数为底孔直径23 mm,腹向侧......
The Effect of Intensity Pulsed Ion Beam Irradiation on Wear Resistance of High-speed Steel MA Teng-cai1,LIU Zhen-min1,WANG Ying-min1,HAO Sheng-zhi1,MEI Xian-xiu1 (1.State Key Laboratory...-surface layers of pre-quenched W6Mo5Cr4V2high-speed steel (HSS) subjected to intensity pulsed ion beam (IPIB) melting have been investigated. The effect of IPIB high beam current density of 80A/cm2......
Preparation of Large Area Double Sided YBCO Thin Films by DC Magneton Sputtering Wang Xiaoping1,Xie Bowei1,WANG Peiwen1,Li Tao1,Gu Hongwei1 (1.Superconducting Materials Research Center, General Research Institute for Non-Ferrous Metals, Beijing 100088, China) Abstract:Tc, Jc and Rs properties of large area double sided YBCO thin films deposited on LaAlO3 substrates by direct current sputtering......
