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of middle Es1 owns stronger-strong sealing ability. In the late and middle of Ed and the middle of Nm it began forming separately sealing ability for oil-gas reservoirs with lower and middle reserves...:1672-7207(2012)08-3142-07 Sealing oil-gas time and ability effectiveness of mudstone caprocks in middle Es1 in Dagang Oilfield FU Guang, WANG Qi, SHI Ji-jian (College of Earth Science, Northeast......
Theory and application research development of semi-solid forming in China LUO Shou-jing(罗守靖)1, W. C. KEUNG(姜永正)2, KANG Yong-lin(康永林)3 1. School of Materials Science and Engineering, Harbin... recognition, application fields exploiting, developing of billets (slurries) preparation technologies with low cost and special equipments. The prospect of semi-solid forming development path in China......
ability of the PLLA/bioactive glass composites was demonstrated by a model of simulated body fluid(SBF) in vitro. 2 Experimental 2.1 Materials and processing L-lactide, prepared in our laboratory... Bioactivity of bioresorbable composite based on bioactive glass and poly-L-lactide ZHOU Zhi-hua(周智华)1, 2, RUAN Jian-ming(阮建明)1, ZOU Jian-peng(邹俭鹏)1, ZHOU Zhong......
Effects of Heating Rate on the Process Parameters of Superplastic Forming for Zr55Cu30Al10Ni5杨璠,SHI Tielin,廖广兰State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology摘 要:We investigated the effects of heating rate on the process parameters of superplastic forming for Zr55Cu30Al10Ni5......
Mechanical, forming and biological properties of Ti-Fe-Zr-Y alloys prepared by 3D printingLiying Han,Cunshan Wang,Zhengwei LiKey Laboratory of Materials Modification by Laser, Ion and Electron Beams...="ChDivSummary" name="ChDivSummary">Biomedical Ti-Fe-Zr-Y alloys were prepared by 3D printing on pure titanium substrate. The influences of Zr on mechanical, forming, and biological properties......
formability for complex shape products. Rheo-forging of metal offers not only superior mechanical strength but also requires significantly lower machine loads than solid forming processes. In order... by experiment and by simulation using DEFORM 3D, are present. Key words: rheo-forging; A356 alloy; formability; forming defects 1 Introduction Rheological material forming is a near-net-shape forming......
G3镍基耐蚀合金管材热挤压工艺润滑行为研究 Ⅰ.玻璃润滑膜厚度模型建立及应用王宝顺1,林奔1,张麦仓1,董建新1(1.北京市北京科技大学材料科学与工程学院)摘 要:研究了G3镍基耐蚀合金管材玻璃润滑热挤压工艺中润滑膜的成膜行为,建立了润滑膜厚度的理论计算模型.同时,针对6000 t卧式挤压机,结合G3合金热挤压工艺有限元模拟分析,对热挤压工艺参数和玻璃润滑剂黏度进行了系统的研究.结果表明,可以通过玻璃润滑膜厚度及完成一次热挤压所需玻璃垫厚度的理论计算公式优化G3合金管材热挤压工艺参数,并进一步获得了玻璃润滑剂黏......
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Appl Phys, 2001, 89(6): 3529-3531. [9] Fan G J, Lose W, Roth S. Glass-forming ability and magnetic properties of Nd70-xFe20Al10Cox alloys [J]. J Mater Res, 2000, 15(7): 1556-1563. [10] Kumar G, Eckert..., et al. Glass-forming ability and thermal stability of Nd70-xFe20Al10Yx alloys [J]. Acta Mater, 2002, 50(14): 3567-3578. [12] Sun Z G, Loser W, Eckert J, et al. Magnetic properties......
FERROELECTRIC CHARACTERISTICS OF SrBi2Ta2O9 THIN FILMS ANNEALED IN FORMING GAS A.D.Li1,N.B.Ming1,D.S.Wang2,Z.G.Liu1,D.Wu1,T.Yu2,A.Hu2 (1.Department of Material Science and Engineering & National..., China) Abstract:The degradation behavior of SrBi2 Ta2O9 (SBT) thin filras annealed in forming gas (5%H2+95%N2) was investigated. The ferroelectric remnant polarization Pr of SBT had a severe decrease......
