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Machinability of damage-tolerant titanium alloy in orthogonal turn-milling

Tao SUN, Lufang QIN, Junming HOU, Yucan FU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3,   Pages 504-515 doi: 10.1007/s11465-020-0586-2

Abstract: The damage-tolerant titanium alloy TC21 is used extensively in important parts of advanced aircraft because

Keywords： orthogonal turn-milling     damage-tolerant titanium alloy     tool life and failure     machined surface integrity    

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Application of Titanium Alloy Materials for the Pressure-Resistant Structure of Deep Diving Equipment

Jiang Peng, Wang Qi, Zhang Binbin, Wang Yang

Strategic Study of CAE 2019, Volume 21, Issue 6,   Pages 95-101 doi: 10.15302/J-SSCAE-2019.06.018

Abstract:

The development of titanium alloy deep-diving equipment is first summarized, and the desired propertiesof titanium alloy materials are then analyzed considering the characteristics of the deep-sea serviceTo satisfy the urgent demand for titanium alloy equipment in the deep-diving field, we propose to furtherincrease basic research and engineering application of titanium alloy materials, and promote innovative

Keywords： deep diving equipment     pressure-resistant structure     titanium alloy     key technology    

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Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 348-357 doi: 10.1007/s11709-012-0176-4

Abstract: The objective of the present study is to analytically investigate temperature effects of an axial-type seismic damper made of shape memory alloys (SMAs) equipped in steel frames. Based on a modified multilinear one dimensional constitutive model of SMAs, two types of SMAs are employed, which have different stress plateau and different stress growth rate with temperature increase. Temperature effects of SMA dampers on seismic performance upgrading are discussed in three aspects: different environment temperatures; rapid loading rate induced heat generation and different SMA fractions. The analysis indicates that the effect of environment temperature should be considered for the SMA damper in steel frames. However, the rapid loading rate induced heat generation has little adverse effect.

Keywords： damage control design     shape memory alloy     temperature effect    

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Dual-Material Electron Beam Selective Melting: Hardware Development and Validation Studies Article

Chao Guo, Wenjun Ge, Feng Lin

Engineering 2015, Volume 1, Issue 1,   Pages 124-130 doi: 10.15302/J-ENG-2015013

Abstract:

Electron beam selective melting (EBSM) is an additive manufacturing technique that directly fabricates three-dimensional parts in a layerwise fashion by using an electron beam to scan and melt metal powder. In recent years, EBSM has been successfully used in the additive manufacturing of a variety of materials. Previous research focused on the EBSM process of a single material. In this study, a novel EBSM process capable of building a gradient structure with dual metal materials was developed, and a powder-supplying method based on vibration was put forward. Two different powders can be supplied individually and then mixed. Two materials were used in this study: Ti6Al4V powder and Ti47Al2Cr2Nb powder. Ti6Al4V has excellent strength and plasticity at room temperature, while Ti47Al2Cr2Nb has excellent performance at high temperature, but is very brittle. A Ti6Al4V/Ti47Al2Cr2Nb gradient material was successfully fabricated by the developed system. The microstructures and chemical compositions were characterized by optical microscopy, scanning microscopy, and electron microprobe analysis. Results showed that the interface thickness was about 300 μm. The interface was free of cracks, and the chemical compositions exhibited a staircase-like change within the interface.

Keywords： additive manufacturing     electron beam     selective melting     gradient materials     titanium alloy     TiAl alloy    

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Parametric study on damage control design of SMA dampers in frame-typed steel piers

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 384-394 doi: 10.1007/s11709-009-0065-7

Abstract: This paper focuses on damage control design of SMA dampers in steel frame piers.

Keywords： damage control design     shape memory alloy     parameter study     displacement-based verification     strain-based    

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New Evolve of Plasma Alloying on Titanium Alloys Surface

Zhang Gaohui,Xu Zhong,Zhang Pingze,Ge Hongliang,Cui Yujian,Wen Tingdun,Pan Junde

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 163-166

Abstract: wear, corrosion resistance and enhancing fire retardance, several plasma surface treating methods on titaniumalloys had been presented, which included add-arc glow hydrogen-free carburizing plasma depositing on titaniumalloy, double glow plasma hydrogen-free carburizing on titanium alloy, double glow Mo diffusing,  The results showed that gradient layer had formed on the titanium alloys surface, that was of great significance

Keywords： titanium alloy     hydrogen-free carburizing     resistant friction     burn-resistant    

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Fault tolerant control strategy for modular PWM current source inverter

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 228-238 doi: 10.1007/s11708-022-0852-6

Abstract: In this paper, a fault-tolerant control method for an input-series output-parallel modular grid-tied

Keywords： current source converter (CSC)     fault-tolerant control     space vector modulation     active damping     resonance    

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Anodization of titanium alloys for orthopedic applications

Merve İzmir, Batur Ercan

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 28-45 doi: 10.1007/s11705-018-1759-y

Abstract:

In recent years, nanostructured oxide films on titanium alloy surfaces have gained significant interestand titanium alloys and summarizes the interactions between anodized titanium alloy surfaces with cellsIt will start with summarizing the mechanism of nanofeatured oxide fabrication on titanium alloys andthen switch its focus on the latest findings for anodization of titanium alloys, including the use offluoride free electrolytes and anodization of 3D titanium foams.

Keywords： titanium alloys     anodization     biocompatibility     orthopedics    

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Titanium: The Metal Giant in the New Millennium

Yang Yuchun

Strategic Study of CAE 2002, Volume 4, Issue 3,   Pages 21-31

Abstract:

The rise and development of the extraction of titanium sponge and the manufacture of titanium millThe wide application and important role of metallic titanium, titanium products and titanium-based alloysThe market prospect for titanium industry in the new millennium is forecast and some suggestions on thebetter development of titanium industry are put forward.

Keywords： titanium     titanium sponge     titanium products     titanium industry     market demand and supply of titanium    

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The Near β Forging Overthrows the Conventional Forging Theory and Develops a New Tri-modal Microstructure

Zhou Yigang,Zeng Weidong,Yu Hanqing

Strategic Study of CAE 2001, Volume 3, Issue 5,   Pages 61-66

Abstract:

The near beta forging for titanium alloys proposed by the authors has overthrown the conventionalalloy, but do produce a new trimodal microstructure, which consists of about 20% equiaxed alpha, 50%alloy microstructures (i.e. equiaxed, bi-modal, basketweave and lamella), but also has the advantagesThe near beta forging is applicable not only to alpha-beta alloy, but also to alpha, near alpha and nearbeta titanium alloys.

Keywords： titanium alloy     near beta forging     tri-modal microstructure    

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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

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 4, doi: 10.1007/s11783-018-1057-4

Abstract:

Cell membrane of indigenous Cd-tolerant EAB harbored more cadmium

Indigenous Cd-tolerant EAB cytoplasm located

Keywords： Microbial electrolysis cell     Electrochemically active bacteria     Cd-tolerant bacteria     Cd(II) and Cr(VI)    

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Application of Titanium in Automotive Industry and Metallurgical Technologies for Cutting the Cost ofTitanium materials

Yang Yuchun

Strategic Study of CAE 2005, Volume 7, Issue 8,   Pages 9-17

Abstract:

The advantages offered by titanium materials to the automotive industry including reducing vehicleLow cost production technologies of sponge titanium and titanium materials are introduced and evaluated

Keywords： titanium     titanium materials in automotive manufacture     new metallurgical processing of titanium    

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Power maximization of variable-speed variable-pitch wind turbines using passive adaptive neural fault tolerant

Hamed HABIBI, Hamed RAHIMI NOHOOJI, Ian HOWARD

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 377-388 doi: 10.1007/s11465-017-0431-4

Abstract: The adaptive neural fault tolerant control is designed passively to be robust on model uncertainties,

Keywords： wind turbine nonlinear model     maximum power tracking     passive fault tolerant control     adaptive neural control    

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Removal of fluoride from water using titanium-based adsorbents

Zhijian LI, Shubo DENG, Xueying ZHANG, Wei ZHOU, Jun HUANG, Gang YU

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 414-420 doi: 10.1007/s11783-010-0241-y

Abstract: Three adsorbents including TiO , Ti-Ce, and Ti-La hybrid oxides were prepared to remove fluoride from aqueous solution. The Ti-Ce and Ti-La hybrid adsorbents obtained by the hydrolysis-precipitation method had much higher sorption capacity for fluoride than the TiO adsorbent prepared through hydrolysis. Rare earth (Ce and La) oxides and TiO exhibited a synergistic effect in the hybrid adsorbents for fluoride sorption. The sorption equilibrium of fluoride on the three adsorbents was achieved within 4 h, and the pseudo-second-order model described the sorption kinetics well. The sorption isotherms fitted the Langmuir model well, and the adsorption capacities of fluoride on the Ti-Ce and Ti-La adsorbents were about 9.6 and 15.1 mg·g , respectively, at the equilibrium fluoride concentration of 1.0 mg·L , much higher than the 1.7 mg·g on the TiO . The sorption capacities of fluoride on the three adsorbents decreased significantly when the solution pH increased from 3 to 9.5. The electrostatic interaction played an important role in fluoride removal by the three adsorbents, and Fourier transform infrared (FTIR) analysis indicated that the hydroxyl groups on the adsorbent surface were involved in fluoride adsorption.

Keywords： fluoride adsorption     titanium dioxide     titanium-based adsorbent     sorption mechanism    

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Photocatalytic reduction of carbon dioxide by titanium oxide-based semiconductors to produce fuels

Xi CHEN, Fangming JIN

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 207-220 doi: 10.1007/s11708-019-0628-9

Abstract: So far, titanium oxide-based semiconductors have been the most prevalently adopted catalysts in carbonThis mini-review provides a general summary of the recent progresses in titanium oxide-catalyzed photocatalyticLastly, it discusses multi-component hybrid titanium oxide composites.

Keywords： photocatalysis     carbon dioxide reduction     semiconductors     titanium oxide     renewable fuels    

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Title Author Date Type Operation

Machinability of damage-tolerant titanium alloy in orthogonal turn-milling

Tao SUN, Lufang QIN, Junming HOU, Yucan FU

Journal Article

Application of Titanium Alloy Materials for the Pressure-Resistant Structure of Deep Diving Equipment

Jiang Peng, Wang Qi, Zhang Binbin, Wang Yang

Journal Article

Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Journal Article

Dual-Material Electron Beam Selective Melting: Hardware Development and Validation Studies

Chao Guo, Wenjun Ge, Feng Lin

Journal Article

Parametric study on damage control design of SMA dampers in frame-typed steel piers

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI,

Journal Article

New Evolve of Plasma Alloying on Titanium Alloys Surface

Zhang Gaohui,Xu Zhong,Zhang Pingze,Ge Hongliang,Cui Yujian,Wen Tingdun,Pan Junde

Journal Article

Fault tolerant control strategy for modular PWM current source inverter

Journal Article

Anodization of titanium alloys for orthopedic applications

Merve İzmir, Batur Ercan

Journal Article

Titanium: The Metal Giant in the New Millennium

Yang Yuchun

Journal Article

The Near β Forging Overthrows the Conventional Forging Theory and Develops a New Tri-modal Microstructure

Zhou Yigang,Zeng Weidong,Yu Hanqing

Journal Article

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

Journal Article

Application of Titanium in Automotive Industry and Metallurgical Technologies for Cutting the Cost ofTitanium materials

Yang Yuchun

Journal Article

Power maximization of variable-speed variable-pitch wind turbines using passive adaptive neural fault tolerant

Hamed HABIBI, Hamed RAHIMI NOHOOJI, Ian HOWARD

Journal Article

Removal of fluoride from water using titanium-based adsorbents

Zhijian LI, Shubo DENG, Xueying ZHANG, Wei ZHOU, Jun HUANG, Gang YU

Journal Article

Photocatalytic reduction of carbon dioxide by titanium oxide-based semiconductors to produce fuels

Xi CHEN, Fangming JIN

Journal Article