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homogenization. The upper part with the heating element was then slowly and uniformly shifted downwards to allow unidirectional heat extraction. This operation was controlled by a servomotor at various withdraw... interface becomes unstable when the growth rate is large enough that leads to the actual temperature gradient due to the heat flux, GL, being lower than the liquidus temperature gradient at the S/L......
utilization [1,2]. Metal plume could absorb and refract the laser beam and incur the deviation of the laser focus position, which will seriously affect the laser welding quality [3]. Stable heat.... This research was based on the welding technological parameters and the measurement of heat. The extraction of image features is also an important method to monitor and analyze the welding process. GAO et al......
. The higher cutting conditions improve the workpiece quality, but causes the changes in the subsurface due to the higher heat generation. The machined surface generally consists of recast layer, white layer, oxides, contaminants from the tool and the heat affected zone. This may result in increased microhardness in the subsurface of the component. The increase in the hardness at the outer surface......
of the ventilation experiment in opalinus clay[J]. Physics and Chemistry of the Earth, 2008, 33(1): 186-195. [14] 陶文铨. 数值传热学[M]. 2版. 西安: 西安交通大学出版社, 2004: 28-43. TAO Wenquan. Numerical heat transfer[M]. 2nd ed. Xi’an: Xi’an Jiaotong University Press, 2004: 28-43. [15] 陶文铨. 计算传热学的近代进展[M]. 北京: 科学出版社, 2000: 233-248. TAO Wenquan. Advances in computational heat transfer[M]. Beijing: Science Press, 2000: 233-248......
to determine the kinetic parameters from the scan rate dependence of peaks observed in DSC curves [11]. The study on precipitation kinetics and microstructural characterization of heat treatable Al... of the ECAP alloy are strongly influenced by the temperature of process. Fig. 2 DSC plots for heat flow of precipitate reactions of peak-aged and ECAP treated 6013 Al alloy samples 3.2 Precipitation......
: 1-3. YANG Shiming, TAO Wenshuan. Heat transfer theory[M]. Beijing: Higher Educational Press, 1998: 1-3. [3] 金贤玉, 钱在兹, 金南国. 混凝土受火时温度分布的试验研究[J]. 浙江大学学报(自然科学版), 1996, 30(3): 286-294. JIN Xianyu, QIAN... and experimental verification on heat transfer of RC beams under elevated temperature[J]. Journal of Central South University (Science and Technology), 2012, 43(7): 2838-2843. [8] 杨志年, 董毓利, 吕俊利, 等. 整体结构中钢筋混凝土双向板火灾试......
such environment. Heat resistance steel HR3C (25Cr-20Ni-Nb-N) is a typical alloy used as pipe material in USC boiler superheater and reheater. To satisfy the working parameters under the new generation... may result in the overheating of local region, due to the decrease in local heat transfer. Additionally, the oxide film formed on HR3C (5.4 μm) is over twice thicker than that on Al0.15 (2.5 μm), which......
water for another 10 min, scrubbing with ethanol and then drying naturally. 2.2 Damp heat test coupled with voltage 0.1 mol/L Na2SO4 solution was chosen as the electrolyte, and with the aids... environment. Then, the samples were placed in the damp heat cabinet (ESPEC SET-Z-022R), where the temperature was controlled at 60 °C, while the relative humidity values were set as 75%, 85% and 95......
Yuqiang, GONG Jinke. Function chain neural network prediction on heat transfer performance of oscillating heat pipe based on grey relational analysis[J]. Journal of Central South University, 2011, 18(5......
), 2012, 43(5): 1975-1983. TU Fubing, WU Huifen, ZHANG Ling, et al. Numerical simulation and structural parameters optimization in shell side of radial heat pipe heat exchanger[J]. Journal of Central South......
