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Machinability of damage-tolerant titanium alloy in orthogonal turn-milling
Tao SUN, Lufang QIN, Junming HOU, Yucan FU
《机械工程前沿（英文）》 2020年 第15卷 第3期 页码 504-515 doi: 10.1007/s11465-020-0586-2
关键词： orthogonal turn-milling damage-tolerant titanium alloy tool life and failure machined surface integrity machinability
Electrochemical anodization of cast titanium alloys in oxalic acid for biomedical applications
《化学科学与工程前沿（英文）》 2024年 第18卷 第1期 doi: 10.1007/s11705-023-2368-y
关键词： DC anodization Ti-6Al-4V alloy Ti-6Al-7Nb alloy oxide film corrosion
蒋鹏,王启,张斌斌,王洋
《中国工程科学》 2019年 第21卷 第6期 页码 95-101 doi: 10.15302/J-SSCAE-2019.06.018
本文概述了国内外钛合金深海装备的发展现状，针对深海服役环境特点对耐压结构用钛合金材料的性能要求进行了分析，介绍了典型装备耐压结构钛合金材料研究应用中出现的应力腐蚀和蠕变等技术问题，提出需要针对钛合金材料长期服役时存在的组织演变和性能衰减、冲击环境下的动态响应等基础科学问题开展研究，重点梳理工程应用中的大规格材料、应用评价和高效建造等关键技术。文章建议针对深海领域钛合金装备的迫切需求，进一步加大钛合金材料基础研究和工程化应用力度，推动创新应用，践行海洋强国战略。
Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames
Xiaoqun LUO, Hanbin GE, Tsutomu USAMI
《结构与土木工程前沿（英文）》 2012年 第6卷 第4期 页码 348-357 doi: 10.1007/s11709-012-0176-4
关键词： damage control design shape memory alloy temperature effect
双金属电子束选区熔化的硬件开发与成形实验 Article
郭超, 葛文君, 林峰
《工程（英文）》 2015年 第1卷 第1期 页码 124-130 doi: 10.15302/J-ENG-2015013
电子束选区熔化（EBSM）是一种利用电子束扫描、熔化金属粉末逐层制造三维实体零件的增材制造技术。近年来，EBSM已经成功应用于多种材料的增材制造。现有EBSM工艺方面的研究主要聚焦于单种材料的成形，本研究提出一种能够利用两种粉末材料成形梯度结构的EBSM工艺，提出基于振动的粉末供给方法，并实现了两种粉末材料独立供给并混合。利用Ti6Al4V和Ti47Al2Cr2Nb两种材料进行成形。Ti6Al4V在室温下有很好的强度与塑性，而Ti47Al2Cr2Nb在高温下性能优良，但有很大的室温脆性。本研究提出的双金属EBSM工艺成功制备了Ti6Al4V/Ti47Al2Cr2Nb梯度结构，并利用光学显微镜、扫描电子显微镜、电子微探针分析等方法研究了该梯度结构的微观组织和化学成分。结果显示，梯度结构的截面厚度约为300 μm，没有裂纹，化学成分在界面处呈阶梯式变化。
Parametric study on damage control design of SMA dampers in frame-typed steel piers
Xiaoqun LUO, Hanbin GE, Tsutomu USAMI,
《结构与土木工程前沿（英文）》 2009年 第3卷 第4期 页码 384-394 doi: 10.1007/s11709-009-0065-7
关键词： damage control design shape memory alloy parameter study displacement-based verification strain-based verification time history analysis
张高会,徐 重,张平则,葛洪良,崔玉建,温廷敦,潘俊德
《中国工程科学》 2007年 第9卷 第11期 页码 163-166
介绍了钛合金表面加弧辉光离子无氢渗镀碳、双层辉光离子无氢渗碳、双层辉光离子渗铬、渗铜等 表面处理的新方法；检测结果显示在钛合金表面均形成了梯度合金层，进一步检测表明，表面渗镀合金层对 改善钛合金耐磨、耐蚀和阻燃性均有显著的作用。
Fault tolerant control strategy for modular PWM current source inverter
《能源前沿（英文）》 2023年 第17卷 第2期 页码 228-238 doi: 10.1007/s11708-022-0852-6
关键词： current source converter (CSC) fault-tolerant control space vector modulation active damping resonance suppression power quality
Anodization of titanium alloys for orthopedic applications
Merve İzmir, Batur Ercan
《化学科学与工程前沿（英文）》 2019年 第13卷 第1期 页码 28-45 doi: 10.1007/s11705-018-1759-y
In recent years, nanostructured oxide films on titanium alloy surfaces have gained significant interest due to their electrical, catalytic and biological properties. In literature, there is variety of different approaches to fabricate nanostructured oxide films. Among these methods, anodization technique, which allows fine-tuning of oxide film thickness, feature size, topography and chemistry, is one of the most popular approaches to fabricate nanostructured oxide films on titanium alloys, and it has been widely investigated for orthopedic applications. Briefly, anodization is the growth of a controlled oxide film on a metallic component attached to the anode of an electrochemical cell. This review provides an overview of the anodization technique to grow nanostructured oxide films on titanium and titanium alloys and summarizes the interactions between anodized titanium alloy surfaces with cells in terms of cellular adhesion, proliferation and differentiation. It will start with summarizing the mechanism of nanofeatured oxide fabrication on titanium alloys and then switch its focus on the latest findings for anodization of titanium alloys, including the use of fluoride free electrolytes and anodization of 3D titanium foams. The review will also highlight areas requiring further research to successfully translate anodized titanium alloys to clinics for orthopedic applications.
关键词： titanium alloys anodization biocompatibility orthopedics
周义刚,曾卫东,俞汉清
《中国工程科学》 2001年 第3卷 第5期 页码 61-66
将坯料置于相变的临界点附近10～15℃加热、锻造、锻后水冷，随后，不是采用时效处理，而是先进行高温韧化再低温强化处理。近β锻造的组织不再是等轴α量过多，或是为零的网篮条状α的结构模式；而是约含20%等轴α、50%～60%条状α构成的网篮和β转变基体组成的三态组织。这种结构不仅丰富和发展了国 际上钛合金已有的4种组织类塑（等轴、双态、网篮和并列），而且将等轴和网篮组织的性能优势集于一身，由此带来的力学性能超过了国内外相关技术的性能水平：能在不降低塑性，不丧失热稳定性的条件下，提高材料的高温性能、低周疲劳性能和断裂韧性，在改善性能的同时提高使用温度。近β锻造适用于（α+β)型合金， 还可应用于α、近α和近β型合金，其研究成果已用于制造了多种发动机盘件、飞机和导弹等重要结构件。
Xia Hou, Liping Huang, Peng Zhou, Hua Xue, Ning Li
《环境科学与工程前沿（英文）》 2018年 第12卷 第4期 doi: 10.1007/s11783-018-1057-4
Cell membrane of indigenous Cd-tolerant EAB harbored more cadmium than chromium. Indigenous Cd-tolerant EAB cytoplasm located more chromium than cadmium. Simultaneously quantitatively imaging Cd(II) and Cr(III) ions in EAB was achieved. Current accelerated the harboring of cadmium in EAB at an initial 2 h. Current directed the accumulation of more chromium in EAB over time.
关键词： Microbial electrolysis cell Electrochemically active bacteria Cd-tolerant bacteria Cd(II) and Cr(VI) Fluorescence probe
Hamed HABIBI, Hamed RAHIMI NOHOOJI, Ian HOWARD
《机械工程前沿（英文）》 2017年 第12卷 第3期 页码 377-388 doi: 10.1007/s11465-017-0431-4
Power maximization has always been a practical consideration in wind turbines. The question of how to address optimal power capture, especially when the system dynamics are nonlinear and the actuators are subject to unknown faults, is significant. This paper studies the control methodology for variable-speed variable-pitch wind turbines including the effects of uncertain nonlinear dynamics, system fault uncertainties, and unknown external disturbances. The nonlinear model of the wind turbine is presented, and the problem of maximizing extracted energy is formulated by designing the optimal desired states. With the known system, a model-based nonlinear controller is designed; then, to handle uncertainties, the unknown nonlinearities of the wind turbine are estimated by utilizing radial basis function neural networks. The adaptive neural fault tolerant control is designed passively to be robust on model uncertainties, disturbances including wind speed and model noises, and completely unknown actuator faults including generator torque and pitch actuator torque. The Lyapunov direct method is employed to prove that the closed-loop system is uniformly bounded. Simulation studies are performed to verify the effectiveness of the proposed method.
关键词： wind turbine nonlinear model maximum power tracking passive fault tolerant control adaptive neural control
杨遇春
《中国工程科学》 2005年 第7卷 第8期 页码 9-17
叙述了钛在减轻汽车自重、节约燃油、保护环境、降低噪声、提高汽车性能方面的优势和应用领域及趋势。介绍并评价了几种降低海绵钛与钛材成本的工艺技术。
Removal of fluoride from water using titanium-based adsorbents
Zhijian LI, Shubo DENG, Xueying ZHANG, Wei ZHOU, Jun HUANG, Gang YU
《环境科学与工程前沿（英文）》 2010年 第4卷 第4期 页码 414-420 doi: 10.1007/s11783-010-0241-y
关键词： fluoride adsorption titanium dioxide titanium-based adsorbent sorption mechanism
标题 作者 时间 类型 操作
Machinability of damage-tolerant titanium alloy in orthogonal turn-milling
Tao SUN, Lufang QIN, Junming HOU, Yucan FU
期刊论文
Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames
Xiaoqun LUO, Hanbin GE, Tsutomu USAMI
期刊论文
Parametric study on damage control design of SMA dampers in frame-typed steel piers
Xiaoqun LUO, Hanbin GE, Tsutomu USAMI,
期刊论文
Response of indigenous Cd-tolerant electrochemically active bacteria in MECs toward exotic Cr(VI) based
Xia Hou, Liping Huang, Peng Zhou, Hua Xue, Ning Li
期刊论文
Power maximization of variable-speed variable-pitch wind turbines using passive adaptive neural fault tolerant
Hamed HABIBI, Hamed RAHIMI NOHOOJI, Ian HOWARD
期刊论文
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