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, then equations of the lift force and the drag force were derived based on the airfoil theory, and afterwards equations of the horizontal force and the vertical force were presented. The horizontal force...; amphibious; assistant fin; lift force; drag force 球形机器人将驱动机构,控制电路和感知系统等重要部件封闭在球形外壳的内部,对其形成密闭保护.该结构特点使得球形机器人容易适应复杂严苛的外部环境,在环境探测,安保防爆,军事侦察等领域具有广阔应用前景[1].传统的球形机器人应用局限于陆地环境,通过配备额外的驱动能力可以拓展球形机器人的应用环境到水域,使其具有水陆两栖特性......
Effect of Solute Contents of Al-Ni-Sr Alloy on Glass Forming Ability and Thermal Stability H J Kim1,J C Bae1,Taek Soo Kim1,J K Lee1 (1.Advanced Materials R&D Center,Korea Institute of Industrial Technology,994-32 Dongchun-dong,Yeonsu-ku,Incheon 406-130,Korea) Abstract:Glass forming ability (GFA) and structural characterization of a new amorphous Al-Ni-Sr alloy melt spun were investigated......
Simulation of solute transportation within porous particles during the bioleaching processSheng-hua Yin~(1,2)),Ai-xiang Wu~(1)),Shao-yong Wang~(1)),and Hong-jiang Wang~(1)) 1) School of Civil and Environmental Engineering,University of Seienee and Technology Beijing,Beijing 100083,China 2) School of Meehanieal Engineering,University of Western Australia,Perth 6009,Australia摘 要:
Directional Growth of Tin Crystals Controlled by Combined Solute Concentration Gradient Field and Static Magnetic FieldLei Li1,Bo Xu2,Wei-Ping Tong1,Hui Zhang1,Chun-Yan Ban1,Li-Zi He1,Zhi-Hao Zhao1,Yu-Bo Zuo1,Qing-Feng Zhu1,Jian-Zhong Cui11. Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education, Northeastern University2. School of Metallurgy and Energy, Hebei United......
Influence of electric field on the quenched-in vacancy and solute clustering during early stage ageing of Al-Cu alloyShang Fu1,2,3,Ying Zhang1,Huiqun Liu1,2,3,Danqing Yi1,2,3,Bin Wang1,Yong...="ChDivSummary">The effects of electric field on the evolution of excess quenched-in vacancy as well as solute clustering in Al-4wt%Cu alloy, and on the vacancy migration and formation enthalpy......
Quantitative effects of phase transition on solute partition coefficient,inclusion precipitation, and microsegregation for high-sulfur steel solidificationLintao Gui1,2,Mujun Long1,2,Shixin...="ChDivSummary" name="ChDivSummary">Segregation and inclusion precipitation are the common behaviours of steel solidification, which are resulted from the redistribution and diffusion of the solute......
Cu-Cr合金初生相对共晶生长的影响机制研究 傅恒志1,毕晓勤2 (1.西北工业大学凝固技术国家重点实验室,西安,710072;2.河南工业大学材料科学与工程学院,郑州,450007) 摘要:制备了定向凝固Cu-1.0%Cr亚共晶自生复合材料,研究了初生α相生长对共晶生长的影响机制,探讨了亚共晶合金中共晶的生长规律.研究结果表明,Cu-1.0%Cr合金定向凝固时,在初生α相间生长的共晶受到初生相生长的影响,在热场不定向和生长空间受限的双重作用下,共晶无定向地杂乱生长.初生α相的生长引起枝晶间液相溶质分布的变化,随着凝固速度的增大,初生α枝晶间液相溶质的浓度分布趋于平缓,成分趋近于CE.Cu-1.0%Cr合金在快速凝固条件下,初生α相生长改变了共晶的生长环境,致使形成非平衡凝固组织--离异共晶. 关键词:共晶组织; 溶质分布; 非平衡凝固组织; eutectie; solute......
定向凝固镍基高温合金DZ125平界面生长的微观组织演化闵志先1,沈军1,王灵水1,冯周荣1,刘林1,傅恒志1(1.陕西省西安市西北工业大学凝固技术国家重点实验室)摘 要:采用液态金属冷却(LMC)定向凝固技术,对镍基高温合金DZ125在凝固速率为1.5μm/s的条件下其平界面生长的微观组织演化规律进行了研究.结果表明:凝固组织演化经历3个不同的阶段,当凝固分数fs≤0.26时,为单相γ组织,基体中零星分布着细小的颗粒状的未熔HfC;当0.26<fs<0.86时,为γ/MC共生组织,MC为纤维状或者板......
; 文献标志码:A 文章编号:1672-7207(2021)02-0535-08 Effect of electric field on solute transport in tailings leaching process WANG Shaoyong1, 2, WU Aixiang1, 2, YIN Shenghua1, 2, CHEN Xun1, 2 (1..., University of Science and Technology Beijing, Beijing 100083, China) Abstract: To explore the effect of DC electric field on the solute transport in heap leaching system, column experiment......