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| 1 | Recent research and developments on wrought magnesium alloys显示文摘Wrought magnesium alloys attract special interests as lightweight structural material due to their homogeneous microstructure and enhanced mechanical properties compared to as-cast alloys.In this contribution,recent research and developments on wrought magnesium alloys are reviewed from the viewpoint of the alloy design,focusing on Mg-Al,Mg-Zn and Mg-rare earth(RE)systems.The effects of different alloying elements on the microstructure and mechanical properties are described considering their strengthening mechanisms,e.g.grain refinement,precipitation and texture hardening effect.Finally,the new alloy design and also the future research of wrought magnesium alloys to improve their mechanical properties are discussed. | Sihang You Yuanding Huang Karl Ulrich Kainer Norbert Hort | 2017 | Journal of Magnesium and Alloys2017，5，3： | 43 |
| 2 | Role of multi-microalloying by rare earth elements in ductilization of magnesium alloys显示文摘The present work investigates the influences of microalloying with rare earths on the mechanical properties of magnesium alloys.The amount of each rare earth element is controlled below 0.4 wt.%in order not to increase the cost of alloy largely.The synergic effects from the multi-microalloying with rare earths on the mechanical properties are explored.The obtained results show that the as-cast magnesium alloys multi-microalloying with rare earths possesses a quite high ductility with a tensile strain up to 25-30%at room temperature.Moreover,these alloys exhibit much better corrosion resistance than AZ31 alloy.The preliminary in situ neutron diffractions on the deformation of these alloys indicate that the multi-microalloying with rare earths seems to be beneficial for the activation of more slip systems.The deformation becomes more homogeneous and the resultant textures after deformation are weakened. | Yuanding Huang Weimin Gan Karl Ulrich Kainer Norbert Hort | 2014 | Journal of Magnesium and Alloys2014，2，1： | 19 |
| 3 | Microstructure and corrosion behavior of Mg-Sn-Ca alloys after extrusion显示文摘Mg-Sn-Ca alloys promise a reasonable corrosion resistance in combination with good creep resistance, likely due to the presence of Ca2-xMgxSn and other phases. The selected alloys with 3% Sn and Ca in the range of 1%-2% have been extruded in order to achieve more homogeneous microstructure compared with the as-cast alloys. Optical microscopy(OM) and X-ray diffraction(XRD) techniques were used to study the microstructure and phases of these alloys. The corrosion behavior of these alloys was investigated by means of salt spray test and potentio-dynamic measurements. The results obtained on the alloys Mg-3Sn (T3), Mg-3Sn-1Ca (TX31), and Mg-3Sn-2Ca (TX32) indicate the presence of the same phases in as-cast and after extrusion, namely Mg2Sn, Ca2-xMgxSn, and Ca2-xMgxSn/Mg2Ca, respectively. However, due to the occurrence of extensive recrystallization in the extrusion process, the grain size has significantly reduced after extrusion. The reduction leads to the improvement of the corrosion resistance after extrusion which is then comparable with the commercial alloy AZ91D. | T. ABU LEIL N. HORT W. DIETZEL C. BLAW ERT Y. HUANG K. U. KAINER K. P. RAO | 2009 | 中国有色金属学会会刊:英文版2009，19，1： | 12 |
| 4 | Effects of Gd solutes on hardness and yield strength of Mg alloys显示文摘Relative contribution of individual strengthening mechanisms to the yield strength of Mg–0–15 wt%Gd alloys were investigated.Alloys with different grain size were prepared by adding Zr and hot extrusion.Hardness and tensile/compression yield strength were tested on the alloys after solid solution treatment and extrusion.HallPetch constants were calculated with hardness and tensile/compressive data.The results showed that the hardness of Mg–Gd alloys with similar Gd content and different grain size were almost the same,which indicates that grain size had little effect on hardness.The hardness linearly increased with rising Gd content(d H_v/dc≈25 kg mm^(-2)/at%Gd).The tensile and compressive yield strengths enhanced with the increase of Gd content for all alloys in different conditions.In addition,the tensile/compressive(t/c)yield asymmetry of extruded alloys decreased with increasing Gd content.Large t/c yield asymmetry ratio(1.77)was observed for pure Mg,and with increasing Gd content this value decreased to 1.With the increasing of tensile strength,the stress intensity factor,k_y,decreased from 0.27 MPa m^(1/2)for Mg–2 wt%Gd alloy to 0.19 MPa m^(1/2) for Mg–5 wt%Gd alloy,then increased to 0.29 MPa m^(1/2) for Mg–15 wt%Gd alloy.However,k_yincreased linearly form 0.16–0.31 MPa for compression test.The influence of grain size strengthening was eliminated,and the yield strength of tension and compression both linearly increased with c^n,where c is the atom concentration of Gd,and n=1/2 or 2/3. | Yuling Xu Felix Gensch Zhen Ren Karl Ulrich Kainer Norbert Hort | 2018 | Progress in Natural Science:Materials International2018，28，6： | 8 |
| 5 | 添加铈对高压压铸AM50镁合金显微组织和力学性能的影响(英文)显示文摘研究添加铈对高压压铸AM50镁合金显微组织和力学性能的影响。结果表明:添加铈能使AM50镁合金晶粒细化,并使其室温和高温力学性能得到显著改善。相对于未添加Ce和添加0.5%Ce(质量分数)的AM50镁合金,添加1%Ce(质量分数)的镁合金的晶粒更细,力学性能更优。 | Faruk MERT Ahmet ZDEMIR Karl Ulrich KAINER Norbert HORT | 2013 | Transactions of Nonferrous Metals Society of China2013，23，1： | 7 |
| 6 | 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 |
| 7 | 四肢组织工程骨新型支架的比较研究显示文摘现代医学的骨组织工程中,种子细胞、生物材料和组织构建是三个最基本要素,而生物材料或支架材料是影响组织构建最为关键的因素之一。它必须具有良好的生物相容性、可降解性、低免疫原性以及一定的空间结构、孔隙率、降解速率等特性。 | 李秉哲 雷万军 曹谊林 Karl Ulrich Kainer 崔磊 周宁生 彭淑鸽 | 2007 | 组织工程与重建外科杂志2007，3，6： | 3 |
| 8 | Degradable biomaterials based on magnesium corrosion显示文摘 | Frank Witte Norbert Hort Carla Vogt Smadar Cohen Karl Ulrich Kainer Regine Willumeit Frank Feyerabend | 2009 | Current Opinion in Solid State & Materials Science2009，，5： | 3 |
| 9 | Unexpected formation of hydrides in heavy rare earth containing magnesium alloys显示文摘Mg–RE(Dy,Gd,Y)alloys show promising for being developed as biodegradable medical applications.It is found that the hydride REH_(2) could be formed on the surface of samples during their preparations with water cleaning.The amount of formed hydrides in Mg–RE alloys is affected by the content of RE and heat treatments.It increases with the increment of RE content.On the surface of the alloy with T4 treatment the amount of formed hydride REH_(2) is higher.In contrast,the amount of REH2 is lower on the surfaces of as-cast and T6-treated alloys.Their formation mechanism is attributed to the surface reaction of Mg–RE alloys with water.The part of RE in solid solution in Mg matrix plays an important role in influencing the formation of hydrides. | Yuanding Huang Lei Yang Sihang You Weimin Gan Karl Ulrich Kainer Norbert Hort | 2016 | Journal of Magnesium and Alloys2016，4，3： | 3 |
| 10 | Understanding effects of microstructural inhomogeneity on creep response-New approaches to improve the creep resistance in magnesium alloys显示文摘Previous investigations indicate that the creep resistance of magnesium alloys is proportional to the stability of precipitated intermetallic phases at grain boundaries.These stable intermetallic phases were considered to be effective to suppress the deformation by grain boundary sliding,leading to the improvement of creep properties.Based on this point,adding the alloying elements to form the stable intermetallics with high melting point became a popular way to develop the new creep resistant magnesium alloys.The present investigation,however,shows that the creep properties of binary Mg-Sn alloy are still poor even though the addition of Sn possibly results in the precipitation of thermal stable Mg_(2)Sn at grain boundaries.That means other possible mechanisms function to affect the creep response.It is finally found that the poor creep resistance is attributed to the segregation of Sn at dendritic and grain boundaries.Based on this observation,new approaches to improve the creep resistance are suggested for magnesium alloys because most currently magnesium alloys have the commonality with the Mg-Sn alloys. | Yuanding Huang Hajo Dieringa Karl Ulrich Kainer Norbert Hort | 2014 | Journal of Magnesium and Alloys2014，2，2： | 3 |
| 11 | Management der postpartalen Blutung (PPH)显示文摘 | D. Schlembach M.G. M?rtl T. Girard W. Arzt E. Beinder C. Brezinka K. Chalubinski D. Fries W. Gogarten B.-J. Hackel?er H. Helmer W. Henrich I. H?sli P. Husslein F. Kainer U. Lang G. Pfanner W. Rath E. Schleussner H. Steiner D. Surbek R. Zimmermann | 2014 | Der Anaesthesist2014，，3： | 2 |
| 12 | Magnesium stress corrosion cracking显示文摘The significant positive green environment influence of magnesium alloy usage in transport could be compromised by catastrophic fast fracture caused by stress corrosion cracking(SCC). Transgranular stress corrosion cracking(TGSCC) of AZ91 was evaluated using the linearly increasing stress test(LIST) and the constant extension rate test(CERT). The TGSCC threshold stress was 55-75 MPa in distilled water and in 5 g/L NaCl. The TGSCC velocity was 7×10-10-5×10-9 m/s. A delayed hydride-cracking(DHC) model for TGSCC was implemented using a finite element script in MATLAB and the model predictions were compared with experiment. A key outcome is that,during steady state TGSCC propagation,a high dynamic hydrogen concentration is expected to build up behind the crack tip. A number of recommendations are given for preventing SCC of Mg alloys in service. One of the most important recommendations might be that the total stress in service(i.e. the stress from the service loading + the fabrication stress + the residual stress) should be below a threshold level,which,in the absence of other data,could be(conservatively) estimated to be about 50% of the tensile yield strength. | N. Winzer A. Atrens W. Dietze G. Song K. U. Kainer | 2007 | 中国有色金属学会会刊:英文版2007，17，A01： | 2 |
| 13 | Microstructural investigations of the Mg-Sn-xCa system 显示文摘 | HORT N HUANG Y D LEIL T A MAIER P KAINER K U | 2006 | Advanced Engineering Materials2006，5，： | 1 |
| 14 | Investigations in the magnesium-tin system 显示文摘 | BOWLES A L DIERINGA H BLAWERT C HORT N KAINER K U | 2004 | Mat Sci Forum2004，，： | 1 |
| 15 | Preparation and properties of high purity Mg-Y biomaterials显示文摘 | Peng Q M Huang Y D Zhou L Hort N Kainer K U | | 0，，： | 1 |
| 16 | Phase equilibria and thermodynamics of the Mg-Sn-Ca system (Part 2): Experimental investigation of ternary Mg-Sn-Ca phase equilibria and solidification microstructure 显示文摘 | KOZLOV A OHNO M ABU LEIL T HORT N KAINER K U SCHMID-FETZER R | 2008 | Intermetallics2008，16，： | 1 |
| 17 | INFLUENCE OF HEAT TREATMENT ON DAMPING BEHAVIOUR OF THE MAGNESIUM WROUGHT ALLOY AZ61显示文摘The effect of isochronal heat treatments for 1h on variation of damping, hardness and microstructural change of the magnesium wrought alloy AZ61 was investigated. Damping and hardness behaviour could be attributed to the evolution of precipitation process. The influence of precipitation on damping behaviour was explained in the framework of the dislocation string model of Granato and Lücke. | R. González-Martínez J. Gken D. Letzig J. Timmerberg K. Steinhoff K.U. Kainer | 2007 | Acta Metallurgica Sinica(English Letters)2007，20，4： | 1 |
| 18 | Toward universal criteria for gestational diabetes:Relationships between seventy-five and one hundred gram glucose loads and between capillary and venous glucose concentration显示文摘 | Weiss PAM Hecusler M Kainer F | 1998 | Am J Obstet Gynecol1998，178，： | 1 |
| 19 | New perspectives for wrought magnesium alloys 显示文摘 | BOHLEN J LETZIG D KAINER K U | 2007 | Materials Science Fo- rum2007，，： | 1 |
| 20 | Investigations in the magnesium-tin system 显示文摘 | BOWLES A L DIERINGA H BLAWERT C HORT N KAINER K U | 2005 | Materials Science Forum2005，，： | 1 |
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