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Microstructure of Fe/Pt film anneled in magnetic field YU Yong-sheng(于永生), GUO Feng-yun(国凤云), FEI Wei-dong (费维栋), ZHAO Lian-cheng(赵连城) Department of Materials Physics and Chemistry, Harbin.... The phase composition of the film was characterized by X-ray diffractometry(XRD), and the microstructure was observed by scanning electronic microscopy(SEM). Through the film annealed in magnetic field......
are investigated by triaxial compression and seepage test. The testing results indicate that the influence of electric field on oxygen seepage properties in dump is obvious. The seepage velocity of oxygen under... between seepage velocity and pressure gradient under positive electric field 2.2 氧气气体渗流流量与电压的关系 在保持进口气体压力0.02MPa, 出口气体压力0.01MPa不变的条件下, 依次在矿样模型两端施加不同强度的正向电场, 分别测定在无电场和各级外加正向电场下的气体渗流量. 电场强度E由电压......
field, the average velocity of gas and electrolyte increases and reduces respectively with the increase of anode radius, while the reasonable anode chamfer radius is 35-40 mm. Key words: aluminum...体;电解质;流场仿真 中图分类号:TF821 文献标志码:A 文章编号:1672-7207(2010)04-1256-07 Simulation on flow field of anode......
, Central South University, Changsha 410075, China) Abstract: Based on the damage mechanics of rock blasting, single-hole blasting tests and ultrasonic tests of wave velocity were carried out in field. The ultrasonic tests were conducted in borehole of rock mass to obtain the longitudinal wave velocity in surrounding rock before and after field tests of blasting. The blasting-induced fracture zone......
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as research object, the swirling flames heat field of a shaft with height of 0.8-2.0 m was simulated. The effects of shaft height on the temperature, the tangential rotational velocity...; 文献标志码:A 文章编号:1672-7207(2016)12-4224-07 Effects of shaft height on heat flow field of fire whirls in vertical shaft HUO Yan, HUANG......
Applicability of small resistance fastener on long-span continuous bridges of high-speed railwayDAI Gong-lian(戴公连), LIU Wen-shuo(刘文硕)(School of Civil Engineering, Central South University, Changsha 410075, China)Abstract:Ballastless tracks have been widely applied in high-speed railway (HSR). The adaptability research between continuous welded rails (CWR) and long-span bridges of HSR is of great......
Dry friction and wear performance of SiC 3D continuous ceramic frame reinforced 7075Al alloy HUANG Dan(黄 丹), CHEN Wei-ping(陈维平), ZHANG Shao-yang(章少阳), HE Zeng-xian(何曾先) School of Mechanical... 3D continuous ceramic network against Cr12 steel was studied with oscillating dry friction and wear tester under the testing conditions of 70 ℃, 30 min, and the load range of 40-100 N. The experimental......
, rolling, and separating stages. The analysis was conducted using the Deform-3D ver. 5.0 code.The important information concerned with the deformation area characteristic, material fiow, and velocity field......
; Abstract: Three types of FeMnCrAl/Cr3C2 coatings with different Al content were deposited on 20# steel substrates by the high velocity arc spraying (HVAS) process. Surface microstructures of the coatings... of the eroded coatings were observed on a field emission scanning electron microscope(FE-SEM). The laminated structure is found on all the prepared coatings with the porosity and oxide fraction......