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condition to validate the simulation results. Numerical simulation results were compared with the experiments in terms of the forming process and characteristics of the air core, the flow velocities... camera to record the air core forming process and PIV measurement to obtain the detailed flow field over a vertical plane crossing the hydrocyclone center. Figure 3(b) shows the PIV measurement system......
of the precision forming of large diameter thin-walled commercial pure titanium tubes. Up to now, some researches have been done on the bending process and mechanical performances of CP-Ti. ZHOU et al [4] simulated the hot-push forming technology on TA2 titanium ring pipe by ANSYS, and analyzed the deformation behavior of the extrados and intrados of the tubes during forming process. The Xi’an Aircraft......
process[J]. Nonferrous Metals Science and Engineering, 2011(2): 14-18. [3] 李 栋. 高铅渣直接还原炉的研发设计[J]. 中国有色冶金, 2012, 2(1): 35-37. LI Dong. Research and design of direct reduction furnace of lead-rich slag[J]. China Nonferrous Metallurgy, 2012, 2(1): 35-37. [4] DAVIS M, DRY R J, SCHWARZ M P. Flow simulation of the hismelt process[C]// The Third International Conference on CFD in the Minerals and Process......
[3-7]. This material is fabricated by a unidirectional solidification method [8] based on the solubility difference of gas between liquid and solid phases, which is also called Gasar process [9... solidification speed of 0.5 to 0.9 mm/min, while the mold casting process merely obtained spherical pores [19]. In contrast, the regular porous stainless steel [20] was fabricated by continuous zone melting......
for 5 min in a furnace and then quickly cooled down to room temperature, which is a simulation of the brazing process. Table 1 Chemical composition of alloys (mass fraction, %) Microstructures... little effect on the size and morphology of the precipates. Fig. 1 TEM micrographs of as-annealed alloys Fig. 2 TEM micrographs of simulated brazing alloys During the simulated brazing process (heating......
and process are simple and the reinforcement particles are not needed for pre-process, and thus the cost is low. Although outstanding progress has been made in in-situ aluminum matrix composites in recent... ultrasonic field. According to the crystal growth theory, the solute elements tend to diffuse from the large curvature regions to the little ones, which is a spontaneous process from high energy to low one......
the recrystallization one, has already been observed in Al-Mg alloy after ECAP processing where the two present peaks are associated with the advent (recovery process) and the completion of the recrystallization process, while only one single peak appears in the cold-rolled alloy and that is related to the completion of the recrystallization [17]. However, the microstructures existing in the two alloys......
block was about 425 °C and for the lower block was 495 °C. Schematic diagram of the bonding process is shown in Fig. 1. After applying pressure with a punch tool, heat was induced by induction coils... was done at 460 °C under 10 MPa pressure for 10 min based on Ref. [9]. Fig. 1 Schematic diagram of TGTLP bonding process Precipitation hardening heat treatment (T6) was applied on all Al7075 alloy......
, and degradation behavior according to experimental variables such as additives and sintering process [8-18]. However, yet there are many problems to be solved in order to use commercially. The sintering process for specific composition can improve nonohmic properties in the ZnO-V2O5 ceramics [11,12,14-18]. Therefore, it is very interesting to investigate how the sintering process affects varistor......
transformation is extremely useful in order to control the microstructure and to improve the physical properties of alloys. Phase transformation in Ni75AlxV25-x alloys during aging process was studied... and composition clustering process were studied in details by PODURI et al [12] and HOU et al [13]. LI et al [14] investigated the coarsening behavior of L12 and DO22 in Ni75AlxV25-x alloys systematically, but few......