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Fabrication, microstructure and properties of electron beam-physical vapor deposited TiAl sheet and TiAl/Nb laminated composites HAN Jie-cai(韩杰才), ZHANG De-ming(章德铭), CHEN Gui-qing(陈贵清...: The TiAl-based alloys sheet with 150 mm×100 mm×0.4 mm and the TiAl/Nb laminated composites with 150 mm×100 mm×0.2 mm were fabricated by using electron beam-physical vapor deposition(EB-PVD) method......
Study on diffusion welding SiCp/ZL101 with Cu interlayerNIU Jitai, GUO Wei, ZHANG Xinmei, and LIU Xingqiu1) State Key Laboratory of Advanced Welding Production Technology, Harbin Institute... the vacuum diffusion welding SiCp/ZL101 aluminum with Cu interlayer,the effect of welding parame-ter and the thickness of Cu on the welded joint property was investigated,and the optimal welding parameters......
) (NiCoCrAlY (bond coat)+(6%-8%, mass fraction) Y2O3-stabilized ZrO2(YSZ top coat)) were deposited by electron beam physical vapor deposition (EB-PVD) on tube superalloy substrates. The samples were... coatings; electron beam physical vapor deposition; oxidation; thermal shock1 Introduction Since 1980s, the thermal barrier coatings (TBCs) have been used as powerful protection for aircraft gas......
, LEE C H. Aluminum element effect for electron beam welding of similar and dissimilar magnesium– aluminum–zinc alloys [J]. Scripta Materialia, 2007, 56: 733-736. [16] CHI C T, CHAO C G, LIU T F. Optimal parameters for low and high voltage electron beam welding of AZ series magnesium alloys and mechanism of weld shape and pore formation [J]. Science and Technology of Welding and Joining, 2008, 13(2......
of Nonferrous Metals Society of China, 2012, 22(9): 2118-2123. [20] LU W, SHI Y W, LEI Y P, LI X Y. Effect of electron beam welding on the microstructures and mechanical properties of thick TC4-DT alloy [J... synchronized laser beam welding with the homologous filler wire. The formation, microstructure and mechanical properties of welded joints as well as the correlations of each other were investigated......
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of laser beam welded TC4/TA15 dissimilar titanium alloy joints under different welding parameters were studied. The results show that the weld fusion zone of TC4/TA15 dissimilar welded joints... occurs during the tensile tests and the fracture characteristics are typical when ductility is present in the material. Key words: laser beam welding; TC4/TA15 dissimilar joint; microstructure, high......
Isothermal γ →ε phase transformation behavior in a Co-Cr-Mo alloy depending on thermal history during electron beam powder-bed additive manufacturingYufan Zhao1,Yuichiro Koizumi2,Kenta Aoyagi2,Kenta...="ChDivSummary">Powder bed fusion with electron beam(PBF-EB),allows Co-Cr-Mo(CCM) implants with patientcustomization to be fabricated with high quality and complex geometry.However,the variability......
电子束交替蒸发制备蓄能发光膜及其性能研究 吕霄1,张俊英1,葛琦1,王天民1 (1.北京航空航天大学,北京,100083) 摘要:使用真空电子束交替蒸发的方法,在DMD-450型真空镀膜系统中,通过调整Sr_2CO_3,Al_2O_3,Eu_2O_3,Dy_2O_3独立原料靶材的蒸发时间和蒸发周期次数,制得蓝绿色(GF) 和蓝紫色(PF)发光膜.在以铝酸盐为基质的蓄能发光膜中,改变铝与锶的摩尔比,将出现Eu~(2+)的4f~65d~1→4f~7多颜色宽带跃迁和Eu~(3+)的~5D_0→~7F_J窄带跃迁.还原热处理条件对发光膜的发光性能有着重要影响:温度明显影响结晶状态;还原气氛中H_2量对发光膜的发光颜色影响较小,但会影响其相对发光强度. 关键词:电子束蒸发; 蓄光; 膜; electron beam evaporation; light-storing; film......
