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fractures propagated after the thermal shocking, and multiple stereo channels occurred. This indicates that the coal specimen experienced strong frost heaving due to the LN2 treatment. The porosity before... from the original 0.54% to 1.53% after treatment, with an overall growth rate of 183.3%. This indicates that the thermal shocking effect is significant. As the coal specimen was thoroughly dried......
Tong University摘 要:In this work, the influence of sub-zero Celsius treatment and tempering on the mechanical and thermal stability of retained austenite...Effects of Sub-zero Celsius Treatment and Tempering on the Stability of Retained Austenite in Bearing SteelXiao-Hui Lu1,2,Wei Li2,Cheng-Lin Wang2,Hong-Shan Zhao2,Xue-Jun Jin11. State Key Lab of Metal......
of Sciences2. Songshan Lake Materials Laboratory摘 要:The effects of acyclic liquid nitrogen(LN) treatment in a temperature range of -196℃ to 50℃ on the thermal and magnetic stability of Fe78Si9B13 and Fe73.5Si13.5B9Nb3Cu1 glassy ribbons have been studied.The intrinsic heterogeneities of the metallic glasses can be activated through cryogenic thermal cycling......
, 50: 159–162. [16] Phengsakul S, Rodchanarowan A. Effect of thermal treatment on intermetallic phases of Fe/Al structural transition joints [J]. Energy and Materials Science and Engineering, 2013, 34... J. Cent. South Univ. (2018) 25: 1849-1861 DOI: https://doi.org/10.1007/s11771-018-3874-9 Effect of postweld heat treatment on interface microstructure and metallurgical properties of explosively......
J. Cent. South Univ. (2020) 27: 762-771 DOI: https://doi.org/10.1007/s11771-020-4329-7 Influence of heat treatment on microstructure and electrochemical behaviors of Mg-Zn binary alloys prepared... Nature 2020 Abstract: Mg-Zn binary alloys fabricated by the gas-phase alloying technique under vacuum condition were investigated in the state of initial state and after heat treatment......
;实验及结果分析 杨广等[23]研究了金刚石/Ag复合材料的导热性能,对其导热系数进行了测试,利用有效介质理论EMT讨论了复合材料晶粒尺寸和体积分数对其导热性能的影响.表1所列为复合材料导热系数的实验值及与理论值的误差. 表1 金刚石/银复合材料导热性能 Table 1 Effective thermal conductivity of diamond/silver 根据文...): 170-174. [3] XIU Zi-yang, WANG Xu, HUSSAIN M, FENG Chao, JIANG Long-tao. Effect of heat treatment on microstructure and thermophysical properties of diamond/2024 Al composites[J......
-hydration treatment GUAN Qing-jun(管青军)1, 2, SUN Wei(孙伟)2, GUAN Chang-ping(官长平)2, YU Wei-jian(余伟健)1, ZHU Xiang-nan(朱向楠)3, Sultan Ahmed KHOSO2, WANG Ping(王平)1, PENG Wen-qing(彭文庆)1 1. School of Resource..., the phase transition of FGD gypsum to α-HH is facilitated. Key words: flue gas desulfurization gypsum; α-hemihydrate gypsum; calcination-hydration treatment; dissolution; surface characteristics Cite......
and Chemical Engineering, Petroleum University of China (Beijing), Beijing 102249, China) Abstract: The thermal barrier coating of Al2O3/ZrO2 composite coatings on 35# steel substrate were prepared by the air plasma spraying with self-developed AZ?20 nano-doping thermal spray powder. The coating consists of cubic t′-ZrO2 and hexagonal structure α-Al2O3 in nanometer and micrometer; the coating has......
Electron-beam Treatment of Tungsten-free TiC/NiCr CermetⅡ: Structural Transformations in the Subsurface LayerV.E.Ovcharenko,S.G.Psakhie,O.V.Lapshin摘 要:<正>The character of structural changes in the surface layer of titanium carbide (TiC) with Ni-Cr alloy binder was investigated theoretically and experimentally after electron-beam treatment......
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