共搜索到24460条信息,每页显示10条信息,共2446页。用时:0小时0分0秒442毫秒
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......
bend forming path is rather essential. Academic research on the optimization of metal forming process using FE simulations is gaining more and more attention. Many metal forming processes are considered... J. Parameter identification and shape/process optimization in metal forming simulation [J]. Journal of Materials Processing Technology, 2003, 139(1/3): 521-526. [3] JANSSON T, ANDERSSON A, NILSSON L......
Hot rolling characteristics of spray-formed AZ91 magnesium alloy WANG Xiao-feng(王晓峰), ZHAO Jiu-zhou (赵九洲), HE Jie(何 杰), HU Zhuang-qi(胡壮麒) Institute of Metal Research, Chinese...; Abstract: AZ91 magnesium alloy was prepared by spray forming. The spray-deposited alloy was subsequently hot-rolled with a 80......
of an aluminum alloy using the GISS process is a feasible process. Key words: gravity sand casting; semi-solid sand cast; Al7Si0.3MgFe; gas induced semi-solid 1 Introduction The semi-solid metal forming..., Songkhla, 90000, Thailand Received 13 May 2010; accepted 15 July 2010 Abstract: The semi-solid metal forming using high pressures has been applied for several years. In contrast, low pressure casting......
Trans. Nonferrous Met. Soc. China 22(2012) s479-s484 Mechanical properties and formability of TA2 extruded tube for hot metal gas forming at elevated temperature HE Zhu-bin1, TENG Bu-gang1, CHE... the formability of TA2 extruded tube for hot metal gas forming (HMGF). The total elongation and the maximum expansion ratio of the tube were obtained. The bursting pressure and fracturing manner were analyzed......
Trans. Nonferrous Met. Soc. China 22(2012) s831-s837 FEA technique of hot plate forming process using cell-typed die with cooling device Jung-Min LEE1, In-Kyu LEE2, Kyung-Hun LEE2, Dae-Soon KIM3.... Industrial Technology Division, Hyundai Heavy Industries, Ulsan 682-792, Korea Received 21 May 2012; accepted 5 November 2012 Abstract: Hot plate forming using a cell-typed die is a process for forming......
tensile testing method. 2.3 Forming process of parts Metal capsules and forming models are used in the study of near-net-shape process.3 Results and discussion 3.1 Microstructure The typical... alloy in room temperature 3.5 Forming of PM titanium alloy parts Prealloyed near-net-shape processes of PM titanium alloy parts are studied. By using metal capsules or metal capsule and forming......
......
alloy tube for hot metal gas forming at elevated temperature [J]. Transactions of Nonferrous Metals Society of China, 2012, 22(Suppl 2): s364-s369. [7] SEYEDKASHI S M H, NAEINI H M, MOON Y H. Feasibility... is restricted seriously. Therefore, a feasible method for plastic processing in high-strength aluminum alloy like AA6061 is sought, making it a hot issue on current engineering community. Recently, warm forming......
EXPERIMENTAL TESTING OF DRAW-BEAD RESTRAINING FORCE IN SHEET METAL FORMING J.H.Yang1,X.Y.Ruan1,D.N.He1,J.Chen1 (1.Department of Plasticity Forming Engineering, Shanghai Jiao Tong University, Shanghai 200030, China) Abstract:Due to complexities of draw-bead restraining force calculated according to theory anddepending on sheet metal forming properties experiment testing system......