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ceramic and Ti plate were joined by active brazing in vacuum with Ag–Cu–Ti+BN composite filler.The effect of BN content,brazing temperature and time on the microstructure and mechanical properties...Active metal brazing of SiO2–BN ceramic and Ti plate with Ag–Cu–Ti+BN composite fillerZ.W.Yang1,C.L.Wang1,Y.Wang1,L.X.Zhang2,D.P.Wang1,J.C.Feng21. Tianjin Key Lab of Advanced Joining Technology......
Numerical Simulation of Vacuum Heat Treatment Thermal Hysteresis Time of GH4169 Superalloy Workpiece ZHANG Fan-yun1,WANG Ming-wei2,LI Chen-hui1,ZHANG Li-wen2,ZHANG Zun-li1,ZHANG Li-sheng1,JIANG... of vacuum heat treatment process was developed. In this model, influence of many factors, such as nonlinear heat radiation, temperature-dependent thermal physical properties of material are considered......
. The fracture surface is characterized as typical cleavage fracture and it mainly consists of massive brittle Al3NiTi2 intermetallics. Key words: γ-TiAl alloy; Ni-based superalloy; vacuum brazing... of the brazing part is shown in Fig. 1. The assembled specimens were brazed in the HP-12×12×12 vacuum furnace with a vacuum of ~1.33×10-2 Pa, the brazing temperature was selected from 1090 to 1170 °C......
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J. Cent. South Univ. (2017) 24: 736-742 DOI: 10.1007/s11771-017-3475-z A novel ice slurry producing system with vacuum freezing TANG Yi-fang(唐艺芳)1, LIU Zhi-qiang(刘志强)1, 2, LIU Pei(刘佩)1, KANG Wei(康威... 412007, China Central South University Press and Springer-Verlag Berlin Heidelberg 2017 Abstract: A novel vacuum ice slurry producing system with jet-pumps was proposed to deal with the problems......
, long processing time and high pressure may limit this method to practical applications [10]. Vacuum brazing is considered to be a good choice to solve these problems [8, 10]. However, a few studies have... The specimens were brazed at temperature ranging from 960 °C to 1040 °C for 1 to 30 min in a vacuum furnace (1 MPa). Heating and cooling rates of 10 °C/min were used. After brazing, the joint plate was cut......
Properties of vacuum cast CuCr25 and CuCr25Te contact material XIU Shi-xin(修士新)1, YANG Ren(杨 韧)2, XUE Jun(薛 军)3, WANG Jin-xing(汪金星)3 1. State Key Laboratory of Electrical Insulation...; Abstract: The CuCr25 and CuCr25Te contact materials were manufactured by vacuum casting process. The microstructures of two alloys were observed by metallographic microscope......
. According to a recent review by WAY et al [16], brazing techniques are classified as flame brazing, induction brazing, and furnace/ vacuum brazing. Among these, vacuum brazing is reported... was performed at 450 °C for 3 h in Ar atmosphere, followed by sintering at 1100 °C for 3 h in a high vacuum (<1 mPa) horizontal tubular furnace. Ti joints were produced by brazing......
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Strengthening mechanism of ceramic particle reinforced bonds by ultrasonic brazing of AlMMCsLENG Xue-song1, WANG Chang-wen1, ZHANG Yang2, CHEN Xiao-guang1, YAN Jiu-chun1(1. State Key Laboratory... in the composite bonds. Therefore, with appropriate bonding parameters, ultrasonic brazing can make the SiC particles and Al contents increase in the bond, and this distribution will contribute......
