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| 1 | Micro-arc oxidation of magnesium alloys:A review显示文摘Magnesium(Mg)and its alloys present great potential to be extensively applied in different applications.However,the relatively poor resistance to corrosion and wear significantly restricts their applications in practice.As one of strategies of surface treatment,micro-arc oxidation(MAO)process attracts a lot of attention,since it does not use neither expensive equipment,nor complicated manipulation.This review systematically discusses MAO mechanism and some typical models,which still need to be further developed to provide a better understanding and guide for future researchers.Subsequently,main influencing factors of MAO process are analyzed in detail.Further,some popular applications of MAO coatings are respectively reviewed,including biomedical application,decoration,thermal control,corrosion and wear resistance,and industrial applications in practice.The existing issues and future perspectives are finally discussed to further accelerate extensive applications of Mg alloys. | Wenhui Yao Liang Wu Jingfeng Wang Bin Jiang Dingfei Zhang Maria Serdechnova Tatsiana Shulha Carsten Blawert Mikhail L.Zheludkevich Fusheng Pan | 2022 | Journal of Materials Science & Technology2022，，23： | 8 |
| 2 | 等离子体电解氧化AM 50镁合金表面含黏土涂层的磨损与腐蚀行为显示文摘采用等离子体电解氧化(PEO)在AM 50镁合金表面制备涂层,研究添加黏土微粒对涂层显微组织、磨损和腐蚀行为的影响。采用铝基电解液制备PEO涂层,在电解液中添加5 g/L黏土颗粒,并与未添加的作对比。采用SEM、EDS和XRD对涂层的结构和成分进行表征。磨损测试采用球-盘式摩擦试验机,载荷为2、5和10 N。在0.5%(质量分数)NaCl溶液中,采用极化和电化学阻抗(EIS)实验研究涂层的腐蚀行为。结果表明,在5和10 N载荷下,添加黏土颗粒使涂层的耐磨性下降。磨损表面的SEM结果显示,含有黏土颗粒的涂层其磨损机制为黏着磨损和磨粒磨损。含黏土涂层的磨损性能较差,与涂层的黏结强度较低、粗糙度较高有关。动电位极化实验表明,添加黏土颗粒使涂层的腐蚀速率略微降低。EIS结果表明,含黏土涂层的耐腐蚀性归功于其较好的致密度。 | Farideh DAVOODI Masoud ATAPOUR Carsten BLAWERT Mikhail ZHELUDKEVICH | 2021 | Transactions of Nonferrous Metals Society of China2021，31，12： | 6 |
| 3 | Influence of incorporating Si_(3)N_(4) particles into the oxide layer produced by plasma electrolytic oxidation on AM50 Mg alloy on coating morphology and corrosion properties显示文摘The influence of incorporating different sizes of Si_(3)N_(4) particles on the microstructure and corrosion properties of a phosphate-based plasma electrolytic oxidation (PEO) coating on AM50 magnesium alloy was investigated. The experiments for this study were performed in alkaline electrolytes containing 1 g/L KOH, 10 g/L Na_(3)PO_(4) with and without three different sized of Si_(3)N_(4) particles. The corrosion properties of PEO coatings were investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) in 0.5 wt.% NaCl solution. Microstructure observations by SEM showed that the surface morphology and composition of the PEO coating were affected greatly by particle addition. Si_(3)N_(4) particles can still be found without decomposition in the final coating due to their high melting point. | Xiaopeng Lu Carsten Blawert Nico Scharnagl Karl Ulrich Kainer | 2013 | Journal of Magnesium and Alloys2013，1，4： | 3 |
| 4 | Deteriorated corrosion performance of micro-alloyed Mg-Zn alloy after heat treatment and mechanical processing显示文摘The corrosion performances of the as-cast and solution-treated Mg-0.5Zn samples were investigated in 0.9%Na Cl solution and compared.From the electrochemical measurement results and corrosion morphology observations,it is found that the corrosion resistance of Mg-0.5Zn deteriorated with the extension of solution treatment duration.The main reason was the formation of Fe-Si precipitates with higher Fe concentrations during heat treatment.The Fe-Si precipitates,especially the ones with high Fe contents influenced the corrosion initiation and propagation significantly.In regard of corrosion performance,the solution-treated and then extruded sample was also performing not as good as the cast and then directly extruded sample. | Yiming Jin Carsten Blawert Hong Yang Bjorn Wiese Jan Bohlen Di Mei Min Deng Frank Feyerabend Regine Willumeit | 2021 | Journal of Materials Science & Technology2021，，33： | 3 |
| 5 | Corrosion performance,corrosion fatigue behavior and mechanical integrity of an extruded Mg4Zn0.2Sn alloy显示文摘Magnesium alloys are promising as load bearing components.They are inevitably exposed to cyclic loading and corrosive environment in actual service,which can consequently result in corrosion fatigue failure and loss of mechanical integrity of the material.Therefore,in the present study,the corrosion behavior,corrosion fatigue performance and mechanical integrity of an extruded Mg4Zn0.2Sn(wt.%)alloy were thoroughly studied in two corrosive electrolytes.Strong localized corrosion occurred when the alloy was immersed in deionized water based sodium chloride(NaCl)solution.The poor corrosion resistance of the alloy resulted in a fast deterioration of the tensile properties after pre-exposure to salt spray and a poor fatigue resistance in deionized water based NaCl solution.In comparison,the active dissolution of the substrate was sufficiently suppressed in artificial tap water based NaCl solution due to the formation of highly protective corrosion product layers.This consequently conferred longer fatigue life on the alloy in the electrolyte.Our results emphasized the influence of corrosion on the fatigue behavior and tensile properties of magnesium alloys. | Pingli Jiang Carsten Blawert Jan Bohlen Mikhail L.Zheludkevich | 2020 | Journal of Materials Science & Technology2020，59，24： | 3 |
| 6 | Corrosion Protection of AM50 Magnesium Alloy by Nafion/DMSO Organic Coatings显示文摘为 AM50 镁合金的器官的涂层由简单沉浸和热处理准备了的 Nafion/Dimethysulfoxid (DMSO ) 的腐蚀保护的有效性被调查。它 Nafion/DMSO 器官的涂层的腐蚀抵抗和形态学被电气化学的腐蚀测试和光显微镜学学习。结果证明 Nafion/DMSO 器官的涂层能有效地改进 AM50 镁合金的腐蚀抵抗。另外,腐蚀抵抗与器官的涂层的表面密度增加。 | SONG Renguo ZHENG Xiaohua BAI Shuju BLAWERT Carsten DIETZEL Wolfgang | 2008 | Journal of Wuhan University of Technology(Materials Science)2008，23，2： | 2 |
| 7 | In-situ LDHs growth on PEO coatings on AZ31 magnesium alloy for active protection:Roles of PEO composition and conversion solution显示文摘In this work,plasma electrolytic oxidation(PEO)coatings were produced on magnesium alloy AZ31 in aluminate,silicate and phosphate-based electrolytes,and followed by hydrothermal treatments in order to synthesis layered double hydroxides(LDHs)based nanocontainers.LDHs synthesis was done in three different growth solutions(deionized water,sodium nitrate and aluminum nitrate containing solution).In frame of this work it was shown,that it was difficult to form LDHs on Si-based PEO coating,due to more stable silicate phases in comparison with aluminate and phosphate phases in respective PEO coatings.The obtained hybrid LDH/PEO coatings were characterized using SEM,EDS and GDOES,and then the corrosion protection was further investigated by EIS.Based on the obtained results,it was confirmed that,the hydrothermal treatments in Al^(3+)containing solution played an important role on overall corrosion resistance for phosphate and silicate-based PEO coatings,but not for Al-based PEO coatings. | Gen Zhang Liang Wu Maria Serdechnova Aitao Tang Cheng Wang Carsten Blawert Fusheng Pan Mikhail L.Zheludkevich | 2023 | Journal of Magnesium and Alloys2023，11，7： | 1 |
| 8 | Difference in formation of plasma electrolytic oxidation coatings on MgLi alloy in comparison with pure Mg显示文摘In order to study the substrate lattice structure(Li addition)on the growth of plasma electrolytic oxidation(PEO)coatings,Mg Li alloy(11.36 wt.%of Li,cubic)and pure Mg(hexagonal)were treated under a pulsed direct PEO mode in a phosphate electrolyte for different periods of time.The results revealed that the presence of Li and Li-rich phases in the cubic Mg alloy seems to be essential for the treatment result rather than the original lattice structure.A modified discharge behavior of Mg Li alloy finally led to a different microstructure of the coating.The unstable coatings of Mg Li alloy tended to dissolve rapidly though shared the similar composition to that of pure Mg.Li was incorporated only in the primary conversion products at the interface of coating/Mg Li.In spite of the advanced efficiency of energy input during processing,the more porous and thinner PEO coatings on the Mg Li alloy were less resistant to abrasion and corrosion. | Ting Wu Carsten Blawert Xiaopeng Lu Maria Serdechnova Mikhail L.Zheludkevich | 2021 | Journal of Magnesium and Alloys2021，9，5： | 1 |
| 9 | Self-cleaning property of AZ31 Mg alloy during plasma electrolytic oxidation process显示文摘The rolling of metal sheet often leads to strong contamination of the resulting surface. The present work reports the effects of the surface contamination remaining after rolling of AZ31 Mg alloy on plasma electrolytic oxidation(PEO) treatment of the resulting sheet material. Results indicate that most of the contaminants on the surface of as-rolled AZ31 Mg alloy are removed in the early stages of PEO process. The contaminations slightly influence the phase composition of PEO coating. Non-uniform distribution of contaminations results in aggregation of pores on the surface of PEO samples. On the bare substrate the contaminations are responsible for poor wear and corrosion resistance but final PEO coatings reveals similar performance on contaminated substrate compared to the abraded one. A self-cleaning property of the PEO and possibility of one step process,avoiding pre-cleaning stages, is suggested. | Jiaping Han Carsten Blawert Junjie Yang Xiaopeng Lu Jin Hu Mikhail L.Zheludke vich | 2019 | Progress in Natural Science:Materials International2019，29，1： | 1 |
| 10 | Anodizing treatments for magnesium alloys and their effect on corrosion resistance in various environments 显示文摘 | Carsten Blawert Wolfgang Dietzel Edward Ghali | 2005 | Advanced Engineering Materials2005，257，： | 1 |
| 11 | MgAl-V_(2)O_7 ^(4-)LDHs/(PEI/MXene)_(10) composite film for magnesium alloy corrosion protection显示文摘In this study,MgAl-V_(2) O_7^(4-) LDHs/(poly(ethyleneimine)(PEI)/MXene)_n composite films were synthesized via(ⅰ) in-situ hydrothermal growth of Mg-AL layered double hydroxides(LDHs) on AZ31 alloy followed by vanadate intercalation reactions,and(ⅱ) the as-prepared MgAL-V_(2) O7^(4-) LDHs film was covered by layerby-layer assembly using(PEI/MXene)_n,where n=5,10,and 20.Film characterization revealed that the outer layers(PEI/MXene) were assembled on the surface by electrostatic interaction and provided a good coverage of LDHs nanosheets.But,microcracks appeared gradually on the surface and destroyed the film integrity with increasing number of PEI/MXene layers.The corrosion tests indicated that the MgAl-V_(2) O_7^(4-)LDHs/(PEI/MXene)_(10) composite films provided a better corrosion protection ability than that of n=5 and20.The outer layers(PEI/MXene) had a corrosion inhibition protective effect on MgAl-V_(2) O_7^(4-) LDHs film.This work opened a new perspective of the MXene materials for anticorrosion application via a layer-bylayer assembly method. | Yulong Wu Liang Wu Mikhail L.Zheludkevich Yanning Chen Maria Serdechnova Wenhui Yao Carsten Blawert Andrej Atrens Fusheng Pan | 2021 | Journal of Materials Science & Technology2021，，32： | 1 |
| 12 | 添加CaO或Y的ZK40镁合金的腐蚀行为(英文)显示文摘研究了铸造ZK40、添加2%(质量分数)CaO和添加1%(质量分数)Y的ZK40镁合金的微观组织,并表征了金属间化合物相的形貌和分布。利用ZK40晶界处分散的金属间化合物颗粒,将添加了CaO或Y的ZK40的微观组织调整为沿晶界分布的金属间化合物的半连续网络结构。微观组织中没有检测到CaO,Ca存在于铸造过程中形成的金属间化合物Ca_2Mg_6Zn_3中。析氢和电化学交流阻抗谱分析显示,添加CaO后合金的耐腐性略有提高,而添加Y却对ZK40的耐腐蚀性有负面影响。浸泡试验结果显示,严重的局部腐蚀和沿金属间化合物的腐蚀对ZK40-Y合金的腐蚀过程有重要影响,而ZK40和ZK40-CaO合金的局部腐蚀不明显。ZK40合金中α-Mg基体中的显微偏析明显高于加CaO或Y的ZK40合金,这种作用结合合金表面形成了更加稳定的耐腐蚀层是ZK40-CaO合金的耐腐蚀性能提高的主要原因。 | Ricardo Henrique BUZOLIN Marta MOHEDANO Chamini Lakshi MENDIS Beatriz MINGO Domonkos TOLNAI Carsten BLAWERT Karl Ulrich KAINER Haroldo PINTO Norbert HORT | 2018 | Transactions of Nonferrous Metals Society of China2018，28，3： | 1 |
| 13 | Anodizing treatments for magnesium alloys and their effect on corrosion resistance in various environments显示文摘 | Carsten Blawert W D Edward Ghali Guangling Song | 2006 | Advanced Engineering Materials2006，8，： | 1 |
| 14 | Recycling of magnesium drive train components显示文摘With the development of new heat resistant magnesium alloys, the automotive industry has introduced several parts to the drive train. The rising number of large magnesium components will result in a higher quantity of automotive post consumer scrap. It was the aim of this work to find a reasonable alloy system for the recycling of these magnesium drive train components. A matrix of potential recy-cling alloys based on the magnesium alloy AM50 was prepared via permanent mould casting. The materials were investigated via tensile testing, creep tests and salt spray tests. Three alloys were selected for processing via high pressure die casting and the tests were repeated on the new materials. A promising system for recycling has been isolated and will be investigated more deeply for the influence of impurities. | Daniel FECHNER Carsten BLAWERT Norbert HORT Karl Ulrich KAINER | 2009 | Science China(Technological Sciences)2009，52，1： | 1 |
| 15 | Corrosion of an extruded magnesium alloy ZK60 component—The role of microstructural features显示文摘 | Rongchang Zeng Karl Ulrich Kainer Carsten Blawert Wolfgang Dietzel | 2011 | Journal of Alloys and Compounds2011，，13： | 1 |
| 16 | Influence of secondary phases of AlSi9Cu3 alloy on the plasma electrolytic oxidation coating formation process显示文摘To understand the formation and growth of plasma electrolytic oxidation(PEO) coatings in presence of different secondary phases in a substrate,PEO treatment was carried out on AlSi9 Cu3 alloy at different treatment times ranging from 15 s to 480 s.The coating formation and evolution process was traced by surface and cross-sectional observation of the layers on the different phases of the alloy.The results demonstrated a sequential involvement of the different phases in the plasma discharges:firstly,discharges start on the α-Al matrix,then on the intermetallic Al2 Cu and β-Al5 FeSi phases at the same time and finally on the eutectic Si.The presence of intermetallic Al2 Cu remarkably affects the initial dissolution,the deposition of conversion products and the ignition of discharges at the early stages of processing.Eutectic Si in the substrate exhibits the highest electrochemical stability at all stages and contributes in the beginning to a distinct coating morphology eventually.The resultant PEO coating tends to be uniform if processing times are longer and a double-layer structure appears in the coating. | Ting Wu Carsten Blawert Mikhail LZheludkevich | 2020 | Journal of Materials Science & Technology2020，47，15： | 1 |
| 17 | Corrosion of an extruded magnesium alloy ZK60 component—The role of microstructural features显示文摘 | Rongchang Zeng Karl Ulrich Kainer Carsten Blawert Wolfgang Dietzel | 2011 | Journal of Alloys and Compounds2011，，13： | 1 |
| 18 | Anodi- zing treatments for magnesium al|oys and their affection corrosion resistance in various environments 显示文摘 | Blawert Carsten Dietzel Wolfgang Ghali Edward | 2006 | Advanced Engineering Materials2006，8，6： | 1 |
| 19 | A novel lean alloy of biodegradable Mg-2Zn with nanograins显示文摘Lean alloy(low alloyed)is beneficial for long-term sustainable development of metal materials.Creating a nanocrystalline microstructure is a desirable approach to improve biodegradability and mechanical properties of lean biomedical Mg alloy,but it is nearly impossible to realize.In the present study,the bulk nanocrystalline Mg alloy(average grain size:~70 nm)was successfully obtained by hot rolling process of a lean Mg-2wt.%Zn(Z2)alloy and both high strength((223 MPa(YS)and 260 MPa(UTS))and good corrosion resistance(corrosion rate in vivo:0.2 mm/year)could be achieved.The microstructure evolution during the rolling process was analyzed and discussed.Several factors including large strain,fine grains,strong basal texture,high temperature and Zn segregation conjointly provided the possibility for the activation of pyramidalslip to produce nanocrystals.This finding could provide a new development direction and field of application for lean biomedical Mg alloys. | Wenhui Wang Carsten Blawert Rui Zan Yu Sun Hongzhou Peng Jiahua Ni Pei Han Tao Suo Yang Song Shaoxiang Zhang Mikhail L.Zheludkevich Xiaonong Zhang | 2021 | Bioactive Materials2021，6，12： | 1 |
| 20 | 基于可牺牲中间层制备大规模、可控双金属氢氧化物膜的协同策略显示文摘层状双金属氢氧化物(LDHs)作为一种类水滑石薄膜,以其优异的特性在许多领域中具有广泛的应用.然而,现有的LDH膜制备路线具有大规模生长受限和不可控等问题.本文中,我们受一种草本植物“落地生根”(Bryophyllum Pinnatum)具有肆意生长特性的启发,首次引入可牺牲的共溅射锌-铝中间层作为“植物种子”,通过“局部溶解”和“溶液渗透”的结构转化机制在任意形状、大小及材质的基底材料上实现大规模、厚度可控的LDH膜制备.通过调控中间膜的成分、结构和表面形貌,设计具有不同特性的LDH转化膜.实验结果表明,所制备的LDH膜具有较大的厚度和多级微观结构的特性,在严苛的磨损条件下仍能实现良好的机械稳定性.另外,我们设计了一系列基于锌-铝单金属中间层的电偶模拟实验对LDH膜的化学转化机理进行了深入探究,解决了传统复杂水热过程中实时监测困难的问题.本工作不仅开发了一种制备具有多尺度特性的LDH转化膜的新策略,同时揭示了复杂的LDH原位转化机理,为拓宽LDH材料在先进智能材料上的实际应用提供了新的发展思路. | 朱艺星 宋光铃 郑大江 Maria Serdechnova Carsten Blawert Mikhail L.Zheludkevich | 2022 | Science China Materials2022，65，7： | 0 |
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