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| 1 | Biodegradation behavior of micro-arc oxidation coating on magnesium alloy-from a protein perspective显示文摘Protein exerts a critical influence on the degradation behavior of absorbable magnesium(Mg)-based implants.However,the interaction mechanism between protein and a micro-arc oxidation(MAO)coating on Mg alloys remains unclear.Hereby,a MAO coating was fabricated on AZ31 Mg alloy.And its degradation behavior in phosphate buffer saline(PBS)containing bovine serum albumin(BSA)was investigated and compared with that of the uncoated alloy.Surface morphologies and chemical compositions were studied using Field-emission scanning electron microscope(FE-SEM),Fourier transform infrared spectrophotometer(FT-IR)and X-ray diffraction(XRD).The degradation behavior of the bare Mg alloy and its MAO coating was studied through electrochemical and hydrogen evolution tests.Cytotoxicity assay was applied to evaluate the biocompatibility of Mg alloy substrate and MAO coating.Results indicated that the presence of BSA decreased the degradation rate of Mg alloy substrate because BSA(RCH(NH2)COO‾)molecules combined with Mg2+ions to form(RCH(NH2)COO)2Mg and thus inhibited the dissolution of Mg(OH)2 by impeding the attack of Cl‾ions.In the case of MAO coated Mg alloy,the adsorption of BSA on MAO coating and the formation of(RCH(NH2)COO)2Mg exhibited a synergistic effect and enhanced the corrosion resistance of the coated alloy significantly.Furthermore,cell bioactive assay suggested that the MAO coating had good viability for MG63 cells due to its high surface area. | Zhao-Qi Zhang Li Wang Mei-Qi Zeng Rong-Chang Zeng M.Bobby Kannan Cun-Guo Lin Yu-Feng Zheng | 2020 | Bioactive Materials2020，5，2： | 17 |
| 2 | Effect of particles addition to solution of plasma electrolytic oxidation(PEO)on the properties of PEO coatings formed on magnesium and its alloys:A review显示文摘The plasma electrolytic oxidation(PEO)procedure is utilized in order to amend the surface properties of Mg and its alloys.This procedure creates a ceramic coating on the surface applying high-voltage.The presence of deep pores and porosities in the surface that affect the corrosion resistance of the coatings is one of the PEO procedure limitations.One of the useful methods to decrease porosities of coating and improve its final properties is changing electrolyte conditions based on the presence of micro-and nanoparticles.The present paper reviews the mechanisms of particle adsorption and composition in PEO thin films in addition to the effect of particle addition on the microstructure,composition and corrosion behavior of coatings that were applied on magnesium alloys. | Arash Fattah-alhosseini Razieh Chaharmahali Kazem Babaei | 2020 | Journal of Magnesium and Alloys2020，8，3： | 14 |
| 3 | SiC纳米颗粒对TC4钛合金微弧氧化涂层组织结构及耐蚀性能的影响显示文摘在基础电解液中加入SiC纳米颗粒,利用微弧氧化技术在TC4钛合金表面制备微弧氧化陶瓷涂层,研究纳米颗粒的添加对微弧氧化涂层组织结构及耐蚀性能的影响。结果表明:550,600V及650V条件下,基础电解液中SiC的加入,使TC4微弧氧化涂层的厚度由9.2,12.8μm和12.4μm分别增大到12.0,14.9μm和20.0μm。随着电压的升高,微弧氧化涂层的表面粗糙度逐渐增大,分别为2.65, 3.34μm和3.61μm。SiC的加入有效抑制微弧氧化涂层表面裂纹的产生,增加涂层厚度从而降低涂层的阳极电流密度,提高微弧氧化涂层的耐蚀性能。微弧氧化涂层增加了TC4的开路电位及自腐蚀电位。 | 常海 郭雪刚 文磊 金莹 | 2019 | 材料工程2019，47，3： | 12 |
| 4 | LY12铝合金微弧氧化自润滑复合膜的制备与摩擦性能显示文摘在KOH-KF-NaAlO_2为组分的电解液中添加BN颗粒,采用微弧氧化技术,在LY12铝合金表面制备自润滑复合膜层(Al_2O_3/BN)。研究自润滑复合膜的形貌与微观结构以及工艺参数对复合膜中BN体积分数的影响,讨论BN颗粒的沉积机制,并分析复合膜的摩擦性能。结果表明:自润滑复合膜主要由α-Al_2O_3、γ-Al_2O_3及BN组成;随着电压和BN质量浓度的增加,BN体积分数先增大后趋缓,电解液组分浓度对膜层BN的体积分数影响不大;当BN体积分数为10%,摩擦时间为120 min时,膜层摩擦因数降至0.173,BN颗粒的加入能有效减小摩擦,改善复合膜的摩擦性能。 | 王玉洁 张鹏 杜云慧 李领雷 李楠楠 李强 | 2018 | 中国有色金属学报2018，28，9： | 9 |
| 5 | Microstructure and corrosion resistance of ultrasonic micro-arc oxidation biocoatings on magnesium alloy显示文摘The ultrasonic micro-arc oxidation(UMAO)was used to fabricate ceramic coatings on magnesium alloy.UMAO coatings were produced at 60 W input ultrasonic.The 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 workstation.The results showed that ultrasound improved the homogeneous distribution of micro-porous structure.The coatings were mainly composed of MgO ceramic and small amount of calcium and phosphorus with porous structure.The Ca/P ratio of the coatings increased when 60 W ultrasonic was used.The 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 ultrasonic.The corrosion resistance of UMAO coatings was better than that of MAO coatings. | Lijie QU Muqin LI Miao LIU Erlin ZHANG Chen MA | 2013 | Journal of Advanced Ceramics2013，2，3： | 9 |
| 6 | Investigation of mutual effects among additives in electrolyte for plasma electrolytic oxidation on magnesium alloys显示文摘Plasma electrolytic oxidation(PEO)coatings were prepared on AZ91D magnesium alloys in alkaline silicate-based electrolyte with and without additives.The mutual effects among additives including TiC particles,dispersant polyethylene glycol 6000(PEG6000)and anionic surfactant sodium dodecyl sulfate(SDS)were studied based on orthogonal experiment.The content and distribution of TiC deposited in the coatings were measured by EPMA and EDS.The thicknesses,phase compositions,microstructures and corrosion resistances of the codlings were cAarnined by using TT260 eddy current tuickncss gage,XRD,SEM and clcctrochcniical test,respectively.The results show that the experiment design of this study is the key to study the mutual effects among these additives.Each additive and their interactions all remarkably influence TiC content and corrosion resistance of the coatings.Smaller size TiC is much easier to migrate towards the anode,and the interaction between PEG6000 and SDS both effectively prevents its agglomeration and increases the number of its negative surface charges,which further increase the migration rate and the deposited uniformity of TiC and make TiC have more opportunity to deposit in the discharge channel.Thus,when smaller size TiC,PEG6000 and SDS are all added into the electrolyte,they could improve the anti-corrosion property of the coating to the largest extent attributed to higher TiC content and the densest microstructure of the coating. | Lingyun An Ying Ma Le Sun Zhanying Wang Sheng Wang | 2020 | Journal of Magnesium and Alloys2020，8，2： | 9 |
| 7 | 电源参数及KF和SiC纳米颗粒对ZK60镁合金微弧氧化膜的影响显示文摘对ZK60镁合金在硅酸盐体系、不同的电源参数情况下进行微弧氧化研究.通过实验分析,得到如下结果:微弧氧化时间对膜层的耐蚀性能有较大的影响.当膜层生长到一定厚度后,耐蚀性随微弧氧化时间的延长而变差;当电流较小时,膜层均匀,孔洞较小,当电流增大时,膜层粗糙,孔洞变大,并且容易产生裂纹;KF对镁合金微弧氧化膜层的生成有很好的促进作用,当加入KF为12g/L时,膜层厚度较没加KF增加一倍多,耐蚀性也得到很大提高.当F-浓度过高时,生成的膜层粗糙,而且容易脱落.在电解液中加入纳米SiC颗粒对微弧氧化膜层的厚度和耐蚀性无明显影响. | 程英亮 吴湘权 伍帆 薛志刚 | 2012 | 湖南大学学报(自然科学版)2012，39，10： | 4 |
| 8 | 纳米Al_(2)O_(3)添加剂对VW75稀土镁合金微弧氧化膜层的影响显示文摘为提高VW75稀土镁合金表面耐蚀性,采用手动恒压法对合金进行了微弧氧化(MAO)。基础电解液为硅酸盐碱性电解液(Na_(2)SiO_(3)-NaOH),通过添加纳米氧化铝(α-Al_(2)O_(3))对电解液进行改性,优化原始微弧氧化层。利用数字式涂层测厚仪和带能谱的扫描电子显微镜(SEM)表征膜层厚度及表面微观组织特征,同时测试了合金在3.5%NaCl溶液中的阻抗及动电位极化。结果表明:基础电解液中制备陶瓷层,微观表面有明显'火山状'凸起分布,粗糙度较大,存在'自封孔'现象,膜层厚度可达21.45μm;添加纳米氧化铝后,'火山状'凸起减少,粗糙度降低,纳米氧化铝对孔隙'自封孔'有促进作用,膜层厚度达到22.68μm。正交试验分析发现,电压对膜层厚度及耐蚀性影响最大、氧化时间的影响最小。通过电化学测试得到,在电压为300 V、纳米氧化铝浓度为2 g·L^(-1)、氧化时间为10 min时,膜层极化电阻较大,有较好的耐腐蚀性能,腐蚀电流密度为4.86×10^(-11)A·cm^(-2),相比于未添加纳米氧化铝制备的膜层,腐蚀电流密度降低两个数量级。 | 梁锡炳 李兴刚 张奎 马鸣龙 蒋全通 刘小稻 | 2021 | 稀有金属2021，45，7： | 3 |
| 9 | Improving the wear resistance of plasma electrolytic oxidation(PEO)coatings applied on Mg and its alloys under the addition of nano-and micro-sized additives into the electrolytes:A review显示文摘As an efficient surface modification approach,the plasma electrolytic oxidation(PEO)technique can boost the capability of wear protection in Mg and its alloys by applying a hard and thick ceramic coating.In this procedure,more efficient protection can be acquired via adding additives(in the form of particle,powder,sheet,etc.)into solutions and producing composite coatings.These additives result in more efficient protection against wear via getting stuck in the cracks and pores of coatings and rising the thickness,hardness,and diminishing the porosity size and content.The efficiency of each additive can be changed owing to its intrinsic properties like melting point,size,participation type(reactive,partly reactive,or inert)and potential of zeta.In this review,the effects of distinct additives in nano-and micro-scale size on wear behavior of PEO coatings on Mg and its alloys is going to be reviewed. | Maryam Molaei Kazem Babaei Arash Fattah-alhosseini | 2021 | Journal of Magnesium and Alloys2021，9，4： | 3 |
| 10 | SiC微粉添加剂对铝合金钻杆材料微弧氧化膜层性能的影响显示文摘目的提高铝合金钻杆材料微弧氧化膜层的性能。方法在电解液中加入0~4 g/L的SiC微粉,对7E04铝合金钻杆材料表面生成的微弧氧化膜层进行改性,研究了微弧氧化膜层的氧化电压-时间曲线、厚度、显微硬度、表面形貌、膜层元素含量、相组成和耐蚀性。结果随着SiC微粉质量浓度的增加(0、1、2、3、4 g/L),氧化电压不断增加,在4 g/L时几乎达到550 V。微弧氧化膜层的厚度和显微硬度增加,各浓度下的膜层厚度分别为42.3、43.6、45.0、45.3、50.0μm,膜层显微硬度分别为341.8、375.2、394.4、405.1、436.8MPa。同时,放电孔的孔径和烧结盘的尺寸也逐渐增加。在微弧氧化过程中,SiC被氧化成SiO_2,基体中的Al被氧化成α-Al_2O_3和γ-Al_2O_3,膜层中的相组成主要有α-Al_2O_3、γ-Al_2O_3、SiO_2和莫来石。同时,随着SiC微粉浓度的增加,膜层中的C、Si元素含量增加,Al元素和O元素的含量降低。膜层的腐蚀速率分别为1.11×10^(-1)、3.598×10^(-2)、5.223×10^(-2)、6.762×10^(-2)、1.323×10^(-1) mm/a,呈现出先减小后增加的趋势,耐蚀性先增加后降低。结论 SiC微粉的添加增加了膜层的厚度,改变了膜层的表面形貌,同时提高了微弧氧化膜层的显微硬度、耐蚀性等性能。 | 王平 曹文洁 蒲俊 龚泽宇 胡杰 肖佑涛 | 2018 | 表面技术2018，47，6： | 3 |
| 11 | 表面处理对镁合金摩擦磨损性能影响的研究进展显示文摘镁合金作为最轻的金属结构材料得到了广泛的关注和应用,但其摩擦磨损性能差制约镁合金的进一步发展。综述了近些年来开发的表面改性处理、表面形变强化、高能束表面强化和表面涂层处理等技术对镁合金摩擦磨损性能的影响以及其磨损机制;总结了镁合金表面处理技术在提高摩擦磨损性能方面的作用,并展望了其发展趋势。 | 王森 吕滨江 郭峰 | 2021 | 轻合金加工技术2021，49，12： | 1 |
| 12 | 微弧氧化对AZ91D镁合金高温耐磨性影响显示文摘采用微弧氧化技术在AZ91D镁合金表面制备一层陶瓷涂层.运用XRD,SEM和EDS分别对涂层相成分、涂层表面、截面、元素成分进行观察分析.采用UMT-3高温摩擦磨损试验机研究AZ91D镁合金和微弧氧化涂层在200℃条件下的磨损性能,并结合SEM和EDS对磨痕形貌和磨屑成分进行分析.结果表明:镁合金在200℃条件下磨损和氧化严重,其磨痕宽度约为700μm.经过微弧氧化处理的试样磨痕宽度仅为400μm,磨损较镁合金得到明显改善.对磨痕形貌及磨屑成分观察分析,镁合金在200℃条件下磨损机制主要为氧化磨损和犁削磨损,而微弧氧化涂层则主要为磨粒磨损. | 金杰 李欢 厉淦 | 2015 | 浙江工业大学学报2015，43，3： | 1 |
| 13 | Antibacterial activity of bioceramic coatings on Mg and its alloys created by plasma electrolytic oxidation(PEO): A review显示文摘Mg and its alloys are suitable choices for implant materials due to their biodegradability and biocompatibility features. However, the high electrochemical activity of this family of biomaterials results in their fast degradation and severe corrosion in the physiological environment,producing hydrogen(H;) gas, and therefore increasing the p H of the environment. To meet the clinical requirements, the degradation rate of Mg biomaterials needs to be reduced. Nevertheless, higher corrosion resistance of Mg results in a low alkaline p H, weakening the antibacterial activity. Therefore, while the rapid degradation problem of Mg-based biomaterials needs to be addressed, good antibacterial properties are also necessary. By using the plasma electrolytic oxidation(PEO) surface modification technique, the antibacterial activity of Mg and its alloys can be enhanced while maintaining their corrosion protection properties at a high level. Throughout the PEO process, introducing antibacterial agents into solutions results in a major increase in antibacterial activity of the coatings. Moreover, post-or pre-processing on PEO coatings can provide better protection against bacteria. In this review, the antibacterial activity of PEO coatings applied on Mg and also its alloys will be discussed in more detail. | Arash Fattah-alhosseini Maryam Molaei Meisam Nouri Kazem Babaei | 2022 | Journal of Magnesium and Alloys2022，10，1： | 1 |
| 14 | 处理面积对AZ31B镁合金微弧氧化负载特性的影响显示文摘为了明确处理过程中试样面积对微弧氧化负载特性及膜层性能的影响,采用单极性脉冲电源模式,对4个具有不同面积的AZ31B镁合金试样进行微弧氧化处理.处理中采用LCR测试仪采集负载的等效电阻和等效电容值,用示波器记录负载的电压、电流波形,并用MATLAB对负载电压波形进行拟合,以研究试样面积对微弧氧化处理过程中负载特性的影响.结果表明:随着处理电压的升高,所有的负载等效电容都持续减小,等效电阻都持续增大,负载的放电时间常数不断增大,等效电阻的增大说明膜层厚度随处理电压的增高而不断增长.此外,随着处理面积的增大,相同电压下负载的等效电阻不断减小,负载电容不断增大,负载的放电时间常数不断减小,说明随着面积的增大,膜层的增长变慢,而且面积越大的试样,负载波形更接近于方波,因此对单极性脉冲的实用性越好. | 王晟 黄志杰 兰晔峰 刘康康 王小龙 马颖 | 2020 | 兰州理工大学学报2020，46，5： | 0 |
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