检索结果-南通市图书馆

Ammonia-induced CuO/13X for H_(2)S removal from simulated blast furnace gas at low temperature

Green Energy & Environment 2025年第1期10卷 139-149页

作者： Erping Cao Yuhua Zheng Hao Zhang Jianshan Wang Yuran Li Tingyu Zhu Zhan-guo Zhang Guangwen Xu Yanbin Cui State Key Laboratory of Mesoscience and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing100190China State Key Laboratory of Vanadium and titanium Resources Comprehensive Utilization PanGang Group Research Institute Co.Ltd.Panzhihua Sichuan617000China Shenyang University of Chemical Technology Shenyang110142China University of Chinese Academy of Sciences Beijing 100049China

Blast furnace gas(BFG)is an important by-product energy for the iron and steel industry and has been widely used for heating or electricity ***,the undesirable contaminants in BFG(especially H_(2)S)generate harmful environmental *** desulfurization of BFG is urgent for integrated steel plants due to the stringent ultra-low emission *** with other desulfurization materials,zeolite-based adsorbents represent a viable option with low costs and long service *** this study,an ammonia-induced CuO modified 13X adsorbent(NH3–CuO/13X)was prepared for H_(2)S removal from simulated BFG at low *** XRD,H_(2)-TPR and TEM analysis proved that smaller CuO particles were formed and the dispersion of Cu on the surface of 13X zeolite was improved via the induction of *** on H_(2)S adsorption performance of the adsorbent was carried out using simulated BFG,and the results showed that NH3–CuO/13X-3 has better breakthrough sulfur capacity,which was more than twice the sulfur capacity of CuO/*** is proposed that the enhanced desulfurization performance of NH3–CuO/13X is attributed to an abundant pore of 13X,and combined action of 13X and *** work provided an effective way to improve the sulfur capacity of zeolite-based adsorbents via impregnation method by ammonia induction.

关键词： Blast furnace gas Desulfurization Ammonia-induced CuO 13X zeolite

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Forging-microstructure-tensile properties correlation in a new nearβhigh-strength titanium alloy

引用

Rare Metals 2021年第8期40卷 2109-2117页

作者： Huan Wang She-Wei Xin Yong-Qing Zhao Wei Zhou Wei-Dong Zeng State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an710072China titanium alloy research institute Northwest Institute for Nonferrous Metal ResearchXi’an710016China

Microstructures and tensile properties of a newβhigh-strength titanium alloy Ti-5321(Ti-5 Al-3 Mo-3 V-2 Zr-2 Cr-1 Nb-1 Fe)were investigated in this *** microstructures,including equiaxed microstructure(EM),bimodal microstructure(BM),basket-weave microstructure(WM)and lamellar microstructure(LM),were tailored by changing the forging process,and the influences of different microstructures on tensile properties were also *** results indicated that Ti-5321 exhibits a better combination of strength and ductility,compared to Ti-5553,Ti-1023,BT22 and *** ultimate tensile strength,total elongation and reduction in area could be achieved in a range of 1200-1300 MPa,10%-15%and40%-60%,*** influences of variant selection on the tensile properties in Ti-5321 alloy were also ***βforging and solution treatment,αphase maintained strictly Burgers orientation relation with adjacentβ*** features of the fractography in BM and LM were also explored to further explain the tensile properties and the fracture mode of Ti-5321 alloy.

关键词： New nearβtitanium alloy Forging process Variant selection Tensile properties

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

research progress on refractory composition and deformability of shell molds for TiAl alloy castings

引用

China Foundry 2018年第1期15卷 1-10页

作者： Chun-ling Bao Shuang-qi Zhang Yu-yan Ren You-wei Zhang Hua-sheng Xie Jun Zhao titanium alloy Division Shenyang Research Institute of Foundry School of Materials Science and Engineering Shenyang University of Technology

At present, most TiAl components are produced by an investment casting process. Environmental and economic pressures have, however, resulted in a need for the industry to improve the current casting quality, reduce manufacturing costs and explore new markets for the process. Currently, the main problems for investment casting of TiAl alloys are cracks, porosities, and surface defects. To solve these problems, many studies have been conducted around the world, and it is found that casting defects can be reduced by improving composition and properties of the shell molds. It is important to make a summary for the related research progress for quality improvement of TiAl castings. So, the development on refractory composition of shell molds for TiAl alloy investment castings was reviewed, and research progress on deformability of shell mold for TiAl alloy castings both at home and abroad in recent years was introduced. The existing methods for deformability characterization and methods for improving the deformability of shell molds were summarized and discussed. The updated advancement in numerical simulation of TiAl alloy investment casting was presented, showing the necessity for considering the deformability of shell mold during simulation. Finally, possible research points for future studies on deformability of shell mold for TiAl alloy investment casting were proposed.

关键词： TiAl based alloys investment casting shell mold deformability

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Microstructural evolution in the surface of Ti-10V-2Fe-3Al alloy by solution treatments

引用

Progress in Natural Science:Materials International 2020年第1期30卷 106-109页

作者： Lichun Qi Xaichao Zhang Xueliang Qiao Lijun Huang Xu Huang Xinqing Zhao School of Materials Science and Engineering Beihang University institute of titanium alloy Beijing Institute of Aeronautical Materials

By solution treatments in vacuum and in air,the surface region of Ti-10V-2Fe-3Al exhibits different microstructures from the interior region of the *** solution treated in vacuum,the microstructure of the specimen is composed of dominant β phase and a few of α " martensite in surface region,with a large amount of α" martensite and a little of β phase in *** solution treated in air,the specimen is characterized by dominant surficial a phase and interior β *** addition,the lattice parameter evolutions of a and β phases were observed in the surface region of the specimens by solution treatment in *** mechanism for the surface effects is discussed in light of the structural stability and phase evolution in Ti-10V-2Fe-3Al alloy with solution treatments.

关键词： Ti-10V–2Fe–3Al Microstructural evolution X-ray diffraction Solution treatment

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Fatigue crack growth behaviors of a new burn-resistant highly-stabilized beta titanium alloy

引用

Rare Metals 2009年第6期28卷 545-549页

作者： WU Huana ZHAO Yongqing ZENG Weidong QIAN Li School of Materials Science and Engineering Northwestern Polytechnical University Xi ＇an 710072 China titanium alloy research Center Northwest Institute for Nonferrous Metal Research Xi＇an 710016 China

This article presents the fatigue crack growth （FCG） behaviors of a new bum-resistant highly-stabilized beta Ti40 alloy. The FCG rates were analyzed. The fracture surfaces and the side surfaces of the test samples were explored. The results show that frequency affects the cracking behaviors of Ti40 alloy. Temperature also plays an important role in Ti40 alloy cracking. At room temperature （25℃）, when the frequency increases, the cracking rate changes a little in the range of low stress intensity factor （△K）, while it changes significantly when △K is high. At 500℃, the cracking rate of Ti40 alloy changes significantly during all the course of cracking. The fi＇equency also affects the microstructure patterns of Ti40 alloy. A number of secondary cracks appear in the area more than 200μm from the main crack at a high △K when the frequency is 1 Hz, but only a few secondary cracks exist when the frequency is 10 Hz. Facet image is the main image of the fracture surfaces when the frequency is 1 Hz. While, ductile striation occupies most of the area of fracture surfaces when the frequency is 10 Hz.

关键词： titanium alloys fatigue crack growth frequency temperature

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Improved Corrosion Resistance of Selective Laser Melted Ti–5Cu alloy Using Atomized Ti–5Cu Powder

引用

Acta Metallurgica Sinica(English Letters) 2019年第8期32卷 1007-1014页

作者： Ying Han Hong-Rui Wang Yun-Dong Cao Wen-Tao Hou Shu-Jun Li School of Electrical Engineering Shenyang University of TechnologyShenyang 110870China titanium alloy Laboratory Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

The different types of metal powder used for selective laser melting(SLM) process would cause distinct corrosion behavior due to the uniformity of the obtained *** SLM-produced Ti–5Cu alloy using atomized Ti–5Cu metal powder(SLMed Ti–5Cu) in this work reveals a relatively uniform microstructure with overwhelming acicular α/α′ phase and shows great advantages on corrosion resistance compared with the SLM-produced Ti–5Cu alloy using the mixture powder(SLMedM Ti–5Cu).The effect of the micro-galvanic cells decreases due to the undetectable Ti2Cu phase in the microstructure of the SLMed Ti–*** apparent passivation behavior was observed for SLMed Ti–5Cu instead of severe pitting phenomenon for the SLMed-M Ti–*** charge transfer resistance of SLMed Ti–5Cu in this work is 10.09 ± 2.63 MΩ cm2, which is significantly higher than that of SLMed-M Ti–5Cu(4.76 MΩ cm2).The above result indicates the atomized Ti–5Cu powder plays an important role in the formation of the uniform microstructure of SLMed product, thereby enhancing its corrosion resistance in Hank’s solution at 37 ℃.

关键词： Selective laser melting Corrosion behavior Uniform microstructure Ti-5Cu Passivation Polarization resistance

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of deformation processing parameter on microscopic structure of Ti14 alloy under semi-solid

引用

中国有色金属学会会刊：英文版 2007年第A1期17卷 504-508页

作者：郭萍赵永庆吴玮璐 titanium alloy research Center Northwest Institute for Nonferrous Metal Research

Hot compressive deformation test of Ti-Al-Cu-Si alloy was performed on Gleeble-3500 hot-Simulator over the range of deformation temperature from 1 000 to 1 300 ℃,strain rate from 0.005 s-1 to 5 s-1,deformation degree from 40% to 70%,and samples of d 8 mm×15 mm were used. Change rules of microstructure were mainly studied. The results show that deformation temperature directly influences the nucleation growth and globurizing of grain,and with the temperature rising,the diameter of grain increases,the grain boundary widens. The effect of deformation degree on microstructure varies with deformation temperature. Equivalent diameter of grains shows a trend of falling before elevation with strain rate increasing and temperature rising.

关键词：钛合金半固体成型技术微观结构

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Numerical simulation for permanent mold centrifugal cast TiAl exhaust valve

引用

中国有色金属学会会刊：英文版 2005年第3期15卷 631-635页

作者：盛文斌李东 Department of Mechanical Engineering Shandong University of Technology Zibo 255049 China titanium alloy Laboratory Institute of Metal Research The Chinese Academay of Sciences Shenyang 110016 China

The filling and solidification in centrifugal field, as well as the forming mechanism of off-center porosities were summarized, based on the mathematical model established for the centrifugal cast TiAl exhaust valves. The calculated results show that the centrifugal field results in the phenomenon that the flow in the valve cavity consists of forward flow and backward flow. The unsymmetrical initial temperature field causes continuous unsymmetrical variation in the following solidification, which makes the final solidified region depart from the cavity axis and then leads to the occurrence of off-center porosity. A series of optimized parameters, including the entrance velocity of 0.6-1.3m/s, the rotation speed higher than 300r/min, 80mm or longer entrance length and 400℃ or higher preheated temperature of the mold, are suggested for the manufacture of permanent mold centrifugal cast TiAl exhaust valves.

关键词：钛铝合金排气阀金属型铸造数学模型

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Multi-layer multi-pass friction rolling additive manufacturing of Al alloy:Toward complex large-scale high-performance components

引用

International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 425-438页

作者： Haibin Liu Run Hou Chenghao Wu Ruishan Xie Shujun Chen College of Mechanical&Energy Engineering Beijing University of TechnologyBeijing 100124China Chongqing research institute of Beijing University of Technology Chongqing 401121China

At present,the emerging solid-phase friction-based additive manufacturing technology,including friction rolling additive man-ufacturing(FRAM),can only manufacture simple single-pass *** this study,multi-layer multi-pass FRAM-deposited alumin-um alloy samples were successfully prepared using a non-shoulder tool *** material flow behavior and microstructure of the over-lapped zone between adjacent layers and passes during multi-layer multi-pass FRAM deposition were studied using the hybrid 6061 and 5052 aluminum *** results showed that a mechanical interlocking structure was formed between the adjacent layers and the adja-cent passes in the overlapped center *** friction and rolling of the tool head led to different degrees of lateral flow and plastic deformation of the materials in the overlapped zone,which made the recrystallization degree in the left and right edge zones of the over-lapped zone the highest,followed by the overlapped center zone and the non-overlapped *** tensile strength of the overlapped zone exceeded 90%of that of the single-pass deposition *** is proved that although there are uneven grooves on the surface of the over-lapping area during multi-layer and multi-pass deposition,they can be filled by the flow of materials during the deposition of the next lay-er,thus ensuring the dense microstructure and excellent mechanical properties of the overlapping *** multi-layer multi-pass FRAM deposition overcomes the limitation of deposition width and lays the foundation for the future deposition of large-scale high-performance components.

关键词： aluminum alloy additive manufacturing solid-state friction stir welding multi-layer multi-pass

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Green, sustainable and massive synthesis of sodium vanadate nanowires toward industrialization

引用

Progress in Natural Science:Materials International 2023年第6期33卷 918-923页

作者： Wei Ni ANSTEEL research institute of Vanadium & titanium (Iron & Steel) State Key Laboratory of Vanadium and titanium Resources Comprehensive Utilization

One-dimensional(1D) layered materials combine the advantages of layered materials and 1D nanomaterials,which has attracted intense interest not only in the academic research but also in the industrial *** sodium vanadate nanowires have received incremental attention due to the high capacity and enhanced electrical conductivity for promising advanced energy storage and conversion. However, the mass production of these 1D layered vanadium vanadates(1D NVO) are still of great challenge and the further scalable application in energy storage and conversion systems are hampered. Herein, we developed a facile, non-hydrothermal, green synthesis strategy for scalable, mass production of layered vanadium vanadate nanowires and their assemblies such as membranes, blocks, grains, powders toward industrial scale. It will pave a way for the industrial production of 1D inorganic materials and give a new insight into the fabrication of nanostructured materials beyond commercialized 1D/2D nanomaterials including carbon nanotubes(CNT) and layered double hydroxides(LDH).

关键词： Sodium vanadate nanowires Mass production Vanadium-based Barnesite 1D nanomaterials Self-assembly Nanowire membrane Green synthesis

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：