【摘 要】
：
To solve the problem of the poor plasticity and to meet the requirements of high temperature for forming titanium alloy, mechanical properties of TC2 titanium alloy under the compound energy-field (CEF) with temperature and ultrasonic vibration were studi
【机 构】
：
College of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China;Key Laboratory
【出 处】
：
武汉理工大学学报（材料科学版）（英文版）
论文部分内容阅读
To solve the problem of the poor plasticity and to meet the requirements of high temperature for forming titanium alloy, mechanical properties of TC2 titanium alloy under the compound energy-field (CEF) with temperature and ultrasonic vibration were studied. The effects of CEF on tensile force, elongation, microstructure and fractography of the TC2 titanium alloy were compared and analyzed. The results show that, under the same thermal conditions, the deformation resistance of TC2 titanium alloy decreases with the increase of ultrasonic vibration energy. The formability is also improved correspondingly due to the input of ultrasonic vibration energy and its influence on the microstructure of the material. However, when the ultrasonic vibration energy is larger, the fatigue fracture will also appear, which reduces its formability.
其他文献
光伏发电技术方面的文章要求较强的逻辑性,表达形式客观,用词精准、条理清晰.光伏发电英文文章中一般多包含图标和数据,为设备的性能和具体操作要求进行详细的讲解,具有较强的指导性,能够应用于实践工作.由此可知,在翻译光伏发电专业英语时应注意专业词语的应用,《光伏专业英语》作为光伏专业的英语教材,深入研究和讲解了光伏专业应用英语,对翻译光伏英语相关文章起到理论指导作用.
运用平板太阳能集热器热迁移因子FR的表达式,研究集热器管间距W和管外径Do对FR的影响规律.研究发现,随着W的减小,FR逐渐增大,当W趋近于Do时,FR趋近最大,此时集热管导热系数对FR影响甚微,即可采用非金属材料替代金属材料制作集热管;随着Do增大,FR先增加而后逐渐下降.研制了非金属管式平板太阳能集热器,建立了其性能试验测量系统.试验结果表明,当工质流量为0.165 kg/s时,FR为0.738,平均集热效率为54％.运用BP神经网络算法,建立了非金属管式平板太阳能集热器出口热流体温度的预测模型,并将
Three groups of AlSiTiCrNiCu high entropy alloy (HEA) particles reinforced Al606l composites were fabricated by spark plasma sintering at 520 and 570 ℃ (S520, S570) and by hot-pressed sintering at 570 ℃(H570). The AlSiTiCrNiCu (AST) particles used as rein
We used different SiC particle size as raw materials and via reaction bonding technique to prepare porous SiC membrane supports. The phase composition, microstructure, bending strength, open porosity, and pore size distribution were investigated as a func
Highly monodisperse carbon quantum dots (CQDs) were synthesized by a solvothermal method using L-ascorbic acid as carbon source and different simple alcohols (methanol, ethanol, ethylene glycol, and isopropanol) as reaction solvents at 180 ℃ for 4 hours.
能源结构转型既要适应能源绿色低碳转型的要求,也需满足生态文明建设,它是维护全人类共同利益的必然选择.新时期,我国能源结构转型和能源安全进入稳步前行的阶段,可再生能源发展也进入大规模、高比例、市场化和高质量发展的新阶段.在能源发展方面,我们要立足已有的优势,提高能源安全的保护,实现能源结构的合理布局,这些实施的前提是需要有全方位的支持和保障;再者是财税政策,它可以从中发挥激励的作用.在促进能源结构顺利转型和维护能源安全方面,世界各国尤其是经济发达国家拥有相对成熟的财税政策,其根本是将政策作为支持与激励的手段
To solve the problem of the low added value Zn-containing rotary hearth furnace (RHF) dust, two deep eutectic solvents (DESs) were employed, such as choline chloride-urea (ChCl-urea) and choline chloride–oxalic acid dihydrate (CC–OA) solvent and Zn-contai
The electronic structure and optical property of stacked GaN-WS2 heterostructure are explored with HSE06 calculation based on density functional theory. The direct band gap of GaN-WS2 heterostructure is 1.993 eV, which is obviously a type-Ⅱ band alignment
Highly stable and permeable silicone emulsions were prepared by encapsulating N-octyl triethoaysilane microdroplets into micelles of NH2-PDMS/SiO2. The conversion of siloxane to sub-1 μm emulsions, on one hand, endows the concrete with a highly hydrophobi
The waste coffee-grounds carbon (WCGC) was prepared with H3PO4 treated using waste coffee-grounds as precursor. Its adsorption ability was studied using phenol as test molecule. The influence of H3PO4 treated, calcined temperature, the initial phenol conc