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activation energy is obtained to be Qmd=100.674 kJ/mol and metadynamic recrystallization kinetics model is set up. Finally, the error analysis of metadynamic recrystallization kinetics model proves that the model has high accuracy (correlation coefficient R=0.988 6). Key words: low-alloy steel; kinetics model; hot deformation; metadynamic recrystallization; activation energy 1 Introduction......
of 0.5, while that of Ti-B20-0.1B alloy is quite small which is in the range of 0.049-0.052. The calculation result shows that the activation energy of Ti-B20-0.1B alloy is much higher than... words: titanium alloy; grain growth; TiB; activation energy 众所周知,金属材料的屈服应力与平均晶粒尺寸之间符合Hall-Petch关系[1-2],Hall-Petch关系在多晶金属材料中具有普遍的适用性.钛合金的性能与晶粒尺寸之间亦符合这一关系,因此,提高钛合金力学性能可以通过细化晶粒的方法实现[3].铸态合金晶粒尺寸的细化还有助于提高钛合金的塑......
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to achieve energy conservation and prevent environmental pollution. Key words:ceramic; far infrared rays; fuel; activation; environmental pollution; rare earths; [全文内容正在添加中] ...Effect of Rare Earth on Fuel Activation of Far Infrared Ceramic Xu Gangke1,Meng Junping1,LIANG Jinsheng1,LIANG Guangchuan1,Wang Lijuan1 (1.Institute of Power Source and Ecomaterials Science, Hebei......
Partial Oxidation of Methane with Sol-Gel Fe/Hf/YSZ Catalyst in Dielectric Barrier Discharge: Catalyst Activation by Plasma Jae-Wook Choi1,Antonius Indarto1,Jelliarko Palgunadi3,Hyung Keun Song1,Hwaung Lee1 (1.Clean Technology Research Center, Korea Institute of Science and Technology, Korea;2.Department of Chemical and Biological Engineering, Korea University, Korea;3.Hydrogen Energy Research......
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. The dynamic model was established based on parallel reaction model to achieve activation energy at different heating rates. The results show that thermo-gravimetric curves can be decomposed into three.... Trend of activation energy with the heating rate indicates that increasing heating rate to excess is not beneficial to the reducing of activation energy of each component. Key words: sewage sludge......
leaching; bio-oxidation; activation energy 闪锌矿是自然界中常见的金属硫化矿,许多研究者采用湿法浸出闪锌矿,并对其动力学进行了研究.例如:Crundwell[1]指出在闪锌矿的Fe3+浸出工艺中,闪锌矿的离解速率与铁离子的浓度成正比；Rodriguez等[2]认为,在闪锌矿的生物浸出过程中,闪锌矿的表面形成了一层硫膜,因此,该矿物浸出的控制步骤是扩散步骤.闪锌矿的.... The activation energies of the anodic reaction for leaching system in the presence and in the absence of bacteria are calculated to be 11.97 and 14.39 kJ/mol, respectively, indicating that they can be decreased......
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