【摘 要】
：
A CrZr-alloyed layer was prepared through a pre-zirconizing and subsequent chromizing treatment on a Ti6Al4V substrate.After the removal of the top Cr deposit and Ti 4 Cr layers,a(Cr,Zr)-Ti solid-solution layer was obtained.The microstructure,composition,
【机 构】
：
Institute of Corrosion and Protection,School of Aeronautics,Northwestern Polytechnical University,Xi
【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
A CrZr-alloyed layer was prepared through a pre-zirconizing and subsequent chromizing treatment on a Ti6Al4V substrate.After the removal of the top Cr deposit and Ti 4 Cr layers,a(Cr,Zr)-Ti solid-solution layer was obtained.The microstructure,composition,microhardness and toughness of the(Cr,Zr)-Ti solid-solution layer were evaluated.The results showed that the pre-addition of Zr played an important role in inhibiting the precipitation of the soft Ti 4 Cr phase,which in turn allowed us to obtain a material characterized by a remarkable hardness.Wear and fatigue tests showed that the(Cr,Zr)-Ti solid-solution layer could coordinately improve the properties of the Ti6Al4V alloy.This was mainly due to the good match of hardness and toughness of the(Cr,Zr)-Ti solid-solution layer.In addition,the gradual change in composition and mechanical properties was conducive to the coordinated deformation between the(Cr,Zr)-Ti solid-solution layer and the Ti6Al4V substrate during fatigue tests.This reduced the stress concentration in correspondence of the interface between the two materials.
其他文献
We experimentally investigated the effect of curing conditions on the durability of UHPC under flexural load. Moreover, the mechanisms of the effect of curing conditions were revealed from the microstructural point of view with environmental scanning elec
The interfacial performance of the Fiber Bragg grating (FGB) embedded in the composite was studied and the influence of interface modification on the final profile of the spectra of the FBG sensor was examined. A type of polyamine (Pentaethylenehexamine,
Three kaolinite samples applied for paper coating were collected from America (KA),Brazil (KB),and China (KC),respectively.Parameters such as average bond length of Si-O and Al-O (1(Si-O) and 1(Al-O)),tetrahedral rotation angles (α),changes of tetrahedral
We experimentally studied the fine lightweight aggregate with the particle size range of 3.15-4.75 mm used as functional bridge between FRP sheet and concrete substrate. However, problems would appear and how to deal with the interfacial transition zone (
To design a new type of antitumor nanodrug carrier with good biocompatibility,a drug delivery system with a 2.19％ drug-loading rate,measured by high-performance liquid chromatography (HPLC),was prepared by membrane hydration using a mixed polymer:Pluronic
A 1-octadecanol (OD)/1,3:2,4-di-(3,4-dimethyl) benzylidene sorbitol (DMDBS)/expander graphite (EG) composite was prepared as a form-stable phase change material (PCM) by vacuum melting method. The results of field emission-scanning electron microscopy (FE
The corrosion behavior of 16Mn steel was studied in saturated H 2 S or H 2 S/CO2 solutions containing different Cl-concentrations at 80 ℃.The microstructure and chemical composition of the corrosion products were investigated through scanning electron mic
The aim of this study was to evaluate the effect of the morphology of titanium implant surfaces on dental plaque biofilm formation and the antimicrobial effects of mouthrinses on dental plaque biofilms regarding these titanium surfaces by using an open bi
The microstructural study was conducted on cement and cement-slag pastes immersed in different concentrations of Mg(NO3)2 solutions utilizing 29Si, 27Al NMR spectroscopy and XRD techniques. The results show that the hydration of both the cement and cement