检索结果-南通市图书馆

Enhanced antibacterial activity,corrosion resistance and endothelialization potential of Ti-5Cu alloy by oxygen and nitrogen plasma-based surface modification

引用

Journal of Materials Science & Technology 2024年第1期168卷 250-264页

作者： Xiaotong Zhao Jiali Hu Jingjun Nie Dafu Chen Gaowu Qin erlin zhang Key Lab.for Anisotropy and Texture of Materials Education Ministry of ChinaSchool of Materials Science and EngineeringNortheastern UniversityShenyang 110819China Research Center for Metallic Wires Northeastern UniversityShenyang 110819China Laboratory of Bone Tissue Engineering Beijing Laboratory of Biomedical MaterialsNational Center for OrthopaedicsBeijing Research Institute of Traumatology and OrthopaedicsBeijing Jishuitan HospitalBeijing 100035China

Antibacterial Ti-5Cu alloy is a promising substitute material for Ti-made cardiovascular implants,so its surface engineering is crucial to expediting clinical *** the antibacterial and cardiovas-cular biological benefits of Cu^(2+)and titanium-nitride-oxide(TiN x O y)coatings,a Cu_(2)O/CuO-TiN x O y coating with upregulated Cu^(2+)release was successfully deposited on Ti-5Cu alloy for the first time using oxygen and nitrogen plasma-based surface *** superhydrophilic and nanostructured Cu_(2)O/CuO-TiN x O y coating had a dense structure and was well bonded to the substrate,resulting in enhanced cor-rosion resistance,while CuO/Cu_(2)O in the coating released Cu^(2+)faster than Ti_(2)Cu phase in the *** gratifying,the coating demonstrated perfect antibacterial properties(R>99.9%against ***),owing primarily to direct contact sterilization of Cu_(2)O/*** most encouraging phenomenon was that the coating dramatically accelerated HUVEC adhesion(1.4 times),proliferation(RGR:106%-116%),and particularly migration(RMR:158%-247%)compared with the control *** coating extract also signifi-cantly stimulated in vitro angiogenesis *** rapid endothelialization for Cu_(2)O/CuO-TiN x O y coating was attributed to the surface nanostructure and Cu^(2+)/NO_(2)−release,which upregulated the angiogenesis-related gene expression of HIF-1α,VEGF,and eNOS to increase VEGF secretion and NO *** of the findings indicated that the Cu_(2)O/CuO-TiN x O y coating could enhance the corrosion resistance,an-tibacterial properties,and endothelialization potential of Ti-Cu alloy,displaying great clinical potential in cardiovascular applications.

关键词： Titanium-copper alloy Titanium-nitride-oxide(TiNxOy) Cu^(2+)release Antibacterial property Cell compatibility

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

Effect of Cu on Martensite Transformation of CoCrMo alloy for biomedical application

引用

Journal of Materials Science & Technology 2020年第17期52卷 127-135页

作者： Ruoxian Wang Gaowu Qin erlin zhang School of Materials Science and Engineering Key Lab.for Anisotropy and Texture of MaterialsEducation Ministry of ChinaNortheastern UniversityShenyang110819China

The martensite transformation of Co-29Cr-6Mo-xCu(Co-xCu,x=0,1.5,2,4,wt%)alloys was investigated in order to explore ductile Co-based alloy without Ni for biomedical *** effect of Cu on martensite transformation of Co-29 Cr-6 Mo alloy was investigated using scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-Ray diffraction(XRD)and electron backscatter diffraction(EBSD)*** results revealed that the fraction ofγ-phase was increasing with increasing of copper *** detail,the fraction ofγ-phase of aged Co-1.5 Cu alloy was 4.72%and noγ-phase was found in aged Co-0Cu ***,the fraction ofγ-phase of aged Co-2Cu alloy and Co-4Cu alloy was 51.68%and 46.17%,*** demonstrated that the minimum Cu content which could inhibit martensite transformation in this alloy system was 2 wt%.Calculated phase diagram revealed that increasing the copper content of this alloy system could enlargeγ-phase zone,which means Cu could inhibit the formation ofγ-phase and consequently stabilizeγ-*** distributed Cu-rich phase was identified in aged Co-4Cu *** possible reason for the inhibition of martensite transformation by Cu addition is that alloying with Cu atom might decrease charge accumulations and increase atomic bonds,which increase the stacking fault energy ultimately.

关键词： Biomaterials Co-based alloy Cu addition Precipitation Martensite transformation

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

Hot deformation behavior of an antibacterial Co–29Cr–6Mo–1.8Cu alloy and its effect on mechanical property and corrosion resistance

引用

Journal of Materials Science & Technology 2018年第3期34卷 523-533页

作者： erlin zhang Yang Ge Gaowu Qin Key Lab.for Anisotropy and Texture of Materials Education Ministry of China School of Materials Science and Engineering Northeastern University

In order to optimize the deformation processing, the hot deformation behavior of Co-Cr-Mo-Cu （here- after named as Co-Cu） alloy was studied in this paper at a deformation temperature range of 950-1150 ℃ and a strain rate range of 0.008-5 s^-1. Based on the true stress-true strain curves, a constitutive equation in hyperbolic sin function was established and a hot processing map was drawn. It was found that the flow stress of the Co-Cu alloy increased with the increase of the strain rate and decreased with the increase of the deforming temperature. The hot processing map indicated that there were two unstable regions and one well-processing region. The microstructure, the hardness distribution and the electro- chemical properties of the hot deformed sample were investigated in order to reveal the influence of the hot deformation. Microstructure observation indicated that the grain size increased with the increase of the deformation temperature but decreased with the increase of the strain rate. High temperature and low strain rate promoted the crystallization process but increased the grain size, which results in a reduction in the hardness. The hot deformation at high temperature （1100-1150 ℃） would reduce the corrosion resistance slightly. The final optimized deformation process was： a deformation temperature from 1050to 1100 ℃, and a strain rate from 0.008 to 0.2 s^-1, where a completely recrystallized and homogeneously distributed microstructure would be obtained.

关键词： Cu containing Co based alloy Flow behaviors Constitutive equation Hot processing map Recrystallization Co-Cr-Mo alloy Biomedical application

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

A nano-structured TiO_(2)/CuO/Cu_(2)O coating on Ti-Cu alloy with dual function of antibacterial ability and osteogenic activity

引用

Journal of Materials Science & Technology 2022年第2期97卷 201-212页

作者： Yuan zhang Shan Fu Lei Yang Gaowu Qin erlin zhang Key Laboratory for Anisotropy and Texture of Materials(MoE) School of Materials Science and EngineeringNortheastern UniversityShenyang 110819China Research Center for Metallic Wires Northeastern UniversityShenyang 110819China

Bacteria-associated infection and poor osseointegration are two main reasons for orthopedic implant ***-Cu alloy exhibited excellent antibacterial property,but still presented unsatisfied osteogenic ***,Ti-Cu alloy was surface modified by an alkali-heat treatment in this paper to improve the osteogenic ability without reduction in antibacterial ability.A TiO_(2)/CuO/Cu_(2)O composite coating with nanostructure was deposited on Ti-Cu *** coating showed increased roughness and great *** tests indicated that the modified Ti-Cu alloy exhibited stronger antibacterial ability against Staphylococcus aureus(***)than Ti-Cu ***,cell experiments demonstrated that the composite coating promoted initial adhesion and spreading of MC3T3-E1 cells,enhanced alkaline phosphatase(ALP)activities as well as extracellular matrix(ECM)mineralization,and significantly upregulated osteogenesis-related gene *** was suggested that the nano-structured TiO_(2)/CuO/Cu_(2)O coating on Ti-Cu alloy might provide a potential strategy for orthopedic implant failure.

关键词： Ti-Cu alloy Alkali-heat treatment Antibacterial property Osteogenic activity

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

MICROSTRUCTURES AND MECHANICAL PROPERTIES OF SEMI-SOLID EXTRUDED IN-SITU Al-4.5Cu-0.8Mg/TiCp COMPOSITES

引用

中国有色金属学会会刊：英文版 1998年第2期8卷 117-121页

作者： zhang, erlin Yang, Bo Zeng, Songyan Ma, Mingzhen Harbin Inst of Technology Harbin China

ＭＩＣＲＯＳＴＲＵＣＴＵＲＥＳＡＮＤＭＥＣＨＡＮＩＣＡＬＰＲＯＰＥＲＴＩＥＳＯＦＳＥＭＩＳＯＬＩＤＥＸＴＲＵＤＥＤＩＮＳＩＴＵＡｌ４．５Ｃｕ０．８Ｍｇ／ＴｉＣｐＣＯＭＰＯＳＩＴＥＳ①ＺｈａｎｇＥｒｌｉｎ，Ｙａ... 详细信息

ＭＩＣＲＯＳＴＲＵＣＴＵＲＥＳＡＮＤＭＥＣＨＡＮＩＣＡＬＰＲＯＰＥＲＴＩＥＳＯＦＳＥＭＩＳＯＬＩＤＥＸＴＲＵＤＥＤＩＮＳＩＴＵＡｌ４．５Ｃｕ０．８Ｍｇ／ＴｉＣｐＣＯＭＰＯＳＩＴＥＳ①ＺｈａｎｇＥｒｌｉｎ，ＹａｎｇＢｏａｎｄＺｅｎｇＳｏｎｇｙａ...

关键词： microstructure mechanical property Al/TiC p fracture semi solid extrusion

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

MICROSTRUCTURE AND PROPERTY OF Al/TiC COMPOSITES PREPARED BY REACTION SYNTHESIS

引用

Transactions of Nonferrous Metals Society of China 1996年第1期6卷 114-119页

作者： zhang erlin Zeng Xiaochun Zeng Songyan Li Qingchun School of Material Science and Engineering Harbin Institute of TechnologyHarbin 150001

A novel in-situ process-Reaction Synthesis has been used to fabricate Al/TiC compos-ites,the phase constitute,microstructure and mechanical property of the Al/TiC composite have been investigated by the use of XRD and *** has been shown that the reaction synthesized TiC particu-late is submicron in size(about 0.1~0.8μpm),spherical in shape and smooth in *** macrostruc-ture the distribution of the TiC particulate in matrix is homogeneous,but in micostructure there is micro-segregation of the TiC particulate at the *** cast structure become fine because of the existence of the TiC *** addition«with the increasing of weight percentage of TiC partic-ulate in alloy,the yield strength and ultimate tensile strength of the composite increase significantly«*** 15%TiC,117% and 103% increase respectively,in the same time the elongation of the composite is still more than 4.5%.In the end,the analysis has been done by SEM on the fracture morphology of the *** results show that the fracture is ductility,and mainly because of the cluster of TiC particulate to intergrannular and the synthesis of bar morphology Al_(3)Ti.

关键词： composites microstructure mechanical property particulate reaction synthesis

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

FORMATION MECHANISM OF TiC IN Al/TiC COMPOSITES PREPARED BY DIRECT REACTION SYNTHESIS

引用

中国有色金属学会会刊：英文版 1998年第1期8卷 93-97页

作者： zhang, erlin Bo, Yang Zeng, Songyan Li, Qingchun Ma, Mingzhen Harbin Inst of Technology Harbin China

ＦＯＲＭＡＴＩＯＮＭＥＣＨＡＮＩＳＭＯＦＴｉＣＩＮＡｌ／ＴｉＣＣＯＭＰＯＳＩＴＥＳＰＲＥＰＡＲＥＤＢＹＤＩＲＥＣＴＲＥＡＣＴＩＯＮＳＹＮＴＨＥＳＩＳ①ＺｈａｎｇＥｒｌｉｎ，ＹａｎｇＢｏ，ＺｅｎｇＳｏｎｇｙａｎａｎｄＬ... 详细信息

ＦＯＲＭＡＴＩＯＮＭＥＣＨＡＮＩＳＭＯＦＴｉＣＩＮＡｌ／ＴｉＣＣＯＭＰＯＳＩＴＥＳＰＲＥＰＡＲＥＤＢＹＤＩＲＥＣＴＲＥＡＣＴＩＯＮＳＹＮＴＨＥＳＩＳ①ＺｈａｎｇＥｒｌｉｎ，ＹａｎｇＢｏ，ＺｅｎｇＳｏｎｇｙａｎａｎｄＬｉＱｉｎｇｃｈｕｎＮａｔｉｏｎａｌ...

关键词： reaction composites Al/TiC microstructure mechanism

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 Zn content on microstructure, mechanical properties and fracture behavior of Mg-Mn alloy

引用

China Foundry 2009年第1期6卷 43-47页

作者： Yin Dongsong zhang erlin Zeng Songyan School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 China Institute of Metal Research Chinese Academy of Science Shenyang 110016 China

The optical microscope, scanning electron microscope and universal testing machine are used to investigate the effect of Zn content on the microstructure, mechanical properties and fracture behavior of Mg- Mn-Zn alloy. The results indicate that fine （Mg, Mn, AI）-containing phases are distributed uniformly in the Mg-Mn alloy matrix, while small amount of （Mg, Zn）-containing phases are formed in the matrix and the grain boundary becomes coarse when 1wt.% Zn is added. As the Zn content increases, the amount of （Mg, Zn）-containing phases increases, and the grain boundary becomes coarser. When the Zn content is between 3wt.%-5wt.%, slender （Mg, Zn）-containing phases precipitate at the grain boundary. The addition of Zn could reduce the grain size and enhance the mechanical properties of the alloy matrix, and both of the effects can be enhanced by increasing the Zn content further more. When the Zn content is more than 3wt.%, grain size stops decrease, the strength cannot be improved any more and elongation decreases significantly. The fracture behavior of Mg-Mn alloy appears to be cleavage fracture, and transforms into quasi-cleavage fracture as Zn is added. When Zn content exceeded 3wt.%, large amount of （Mg, Zn）-containing phases appear on the fracture face, and act as the crack sources.

关键词： zinc magnesium alloy microstructure mechanical properties fracture behavior

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

PEO coating on Mg-Ag alloy:The incorporation and release of Ag species

引用

镁合金学报(英文) 2023年第6期11卷 2182-2195页

作者： Xinxin zhang Yupeng zhang You Lv Zehua Dong Lei Yang erlin zhang Teruo Hashimoto Xiaorong Zhou Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074China Hubei Engineering Research Centre for Biomaterials and Medical Protective Materials Huazhong University of Science and TechnologyWuhan 430074China Key Laboratory for Anisotropy and Texture of Materials Education Ministry of ChinaSchool of Materials Science and EngineeringNortheastern UniversityShenyang 110819China Corrosion and Protection Centre Department of MaterialsThe University of ManchesterManchester M139PLUnited Kingdom

In the present study,the distribution of Ag in the coating formed on Mg-Ag alloy by plasma electrolytic oxidation(PEO)and its ionic release kinetics when exposed to a 0.9 wt.%Na Cl solution at 37℃have been *** metallic Ag and Ag oxide particles with~5 to~40 nm in diameters were observed in the PEO ***,an Ag-enriched layer of~20 nm in thickness at the substrate/coating interface was also *** PEO coating on the Mg-Ag alloy not only increases its corrosion resistance with the corrosion current density decreasing by up to 3 orders of magnitude from 8.04×10^(-3)to 4.03×10^(-6)A/cm^(2),but also controls the release of Ag+to the level that is sufficient for anti-infective efficacy without causing cytotoxicity to mammal cells.

关键词： Mg-Ag alloy Plasma electrolytic oxidation Ag distribution Ag release Corrosion 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

Microstructure and corrosion resistance of ultrasonic micro-arc oxidation biocoatings on magnesium alloy

引用

Journal of Advanced Ceramics 2013年第3期2卷 227-234页

作者： Lijie QU Muqin LI Miao LIU erlin zhang Chen MA State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbin 150001China Department of Materials Science and Engineering Jiamusi UniversityJiamusi 154007China Department of Stomatology Jiamusi UniversityJiamusi 154007China

The ultrasonic micro-arc oxidation(UMAO)was used to fabricate ceramic coatings on magnesium *** coatings were produced at 60 W input *** effects of the ultrasound on the microstructure,phase composition,elemental distribution and corrosion resistance of the coatings were extensively investigated by scanning electron microscopy(SEM),X-ray diffraction(XRD),energy-dispersive X-ray spectrometry(EDX)and electrochemical *** results showed that ultrasound improved the homogeneous distribution of micro-porous *** coatings were mainly composed of MgO ceramic and small amount of calcium and phosphorus with porous *** Ca/P ratio of the coatings increased when 60 W ultrasonic was *** corrosion potential in simulated body fluid(SBF)changed from􀀐1.583 V of bare magnesium alloy to -0.353 V of magnesium alloy coated under 60 W *** corrosion resistance of UMAO coatings was better than that of MAO coatings.

关键词： micro-arc oxidation(MAO) ultrasonic treatment magnesium alloy microstructure corrosion resistance

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

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：