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Effects of Gd Y Ratio on the Microstructures and

Thermal Conductivity of Si3N4 III,Effect of RareEarth

Si 3 N 4 ceramics sintered with a series of rareearth (RE = La,Nd,Gd,Y,Yb and Sc) oxide additives were fabricated by hot pressing and subsequent annealing.Their microstructures,lattice oxygen contents,and thermal conductivities were evaluated.Mean grain size increased,while lattice oxygen content decreased,and hence,thermal conductivity increased with decreasing ionic radius Previous123456NextEffects of finish rolling temperature and yield ratio on Effects of yield ratio on yield-strength variation The microstructures of longitudinal-short-transverse (L-S) plane were observed by optical and scanning electron microscopes. S.Y.et al Microstructures and tensile properties of MgZn(Gd)Zr The microstructures and tensile properties of Mg6.0Zn0.6Zr (ZK60) and ZK60 + 1.8Gd (ZEK620 (RE = Gd)) alloys extruded at 290,305,320,340 and 360 Effects of Gd Y Ratio on the Microstructures and#176;C were investigated.The results indicate that Gd addition can refine the microstructures of ZK60 alloy and the extrusion parameters such as the extrusion temperature will influence the tensile properties of both as-extruded ZK60 and ZEK620

Microstructures and Mechanical Properties of Mg-10Gd-3Y

Microstructures and mechanical properties of Mg-10Gd-3Y-2Zn-0.5Zr alloy were investigated.Three kinds of phases including Mg,Mg3(GdYZn) and Mg12(GdY)Zn were found in the as-cast alloy.Two different patterns of the long-period stacking order (LPSO) phases including lamellar structure and block-like structure were observed in the homogenized alloy and both of them were identified as the phase Microstructure,mechanical and biodegradable properties of Mar 02,2019 Effects of Gd Y Ratio on the Microstructures and#0183;Effects of Zn/Gd ratio on the microstructures and mechanical properties of MgZnGdZr alloys.Mater Sci Eng A Struct.2017;695:135.Article CAS Google Scholar [25] Wen K,Liu K,Wang ZH,Li SB,Du WB.Effect of pre-solution Microstructure,Mechanical and Corrosion Properties of Mg Microstructure,mechanical and corrosion properties of Mg-10Gd-2Zn and Mg-10Gd-6Zn (all in wt.%) were evaluated in the as-cast condition.The microstructures of both alloys contained (Mg,Zn)3Gd phase at the interdendritic regions and long period stacking ordered (LPSO) phase distributed in the matrix.The Mg-10Gd-6Zn alloy consisted of a high volume fraction of (Mg,Zn)3Gd intermetallic

Influence of Gd,Nd and Ce Additions on Microstructures

Therefore,three Mg-9Li-0.4Zr alloys strengthened by 5% Gd,5% Nd and 5% Ce respectively were prepared in this work to investigate the influences of these RE elements on microstructures and mechanical properties in an attempt to provide some detailed and comprehensive experimental results to researchers in the field.Effects of finish rolling temperature and yield ratio on Effects of yield ratio on yield-strength variation The microstructures of longitudinal-short-transverse (L-S) plane were observed by optical and scanning electron microscopes. S.Y.et al Effects of extrusion ratio and temperature on the Effects of extrusion ratio and temperature on the mechanical properties and microstructure of as-extruded Mg-Gd-Y-(Nd/Zn)Zr alloys June 2019 Materials Science and Engineering A 762:138080

Effects of extrusion ratio and annealing treatment on the

This study investigates the effects of the extrusion ratio and annealing treatment on the microstructure,texture and mechanical properties of an as-extruded Mg11Gd4.5Y1Nd1.5Zn0.5Zr (wt%) alloy.A high extrusion ratio (30:1) results in a homogeneous microstructure with fine dynamic recrystallized (DRXed) grains,while a low extrusion ratio (6:1) leads to a bimodal microstructure Effects of extrusion ratio and annealing treatment on the This study investigates the effects of the extrusion ratio and annealing treatment on the microstructure,texture and mechanical properties of an as-extruded Mg11Gd4.5Y1Nd1.5Zn0.5Zr (wt%) alloy.A high extrusion ratio (30:1) results in a homogeneous microstructure with fine dynamic recrystallized (DRXed) grains,while a low extrusion ratio (6:1) leads to a bimodal microstructure Effects of Zn/Gd ratio on the microstructures and With the Zn/Gd ratio increases from 0.27 to 1.4,second phases change from W (Mg 3 Gd 2 Zn 3),X (Mg 12 GdZn) and Mg 5 (Gd,Zn) to W,I (Mg 3 Zn 6 Gd) and MgZn 2.After extrusion,the needle-like and dispersively distributed I-phase provides effective strengthening effects to the experimental alloys.

Effects of Zn/Gd ratio on the microstructures and

May 17,2017 Effects of Gd Y Ratio on the Microstructures and#0183;Fig.1 shows the optical microstructures of the alloys in as-cast and as-homogenized conditions.It can be seen that the microstructures vary from equiaxed grains to dendrites with increasing Zn/Gd values as shown in Fig.1a,c and e.It has been reported that Gd and Zn additions have grain refining effects on Mg alloys by inhibiting the migration of grain boundaries ,.Effects of Sm content on microstructures and mechanical Jul 11,2018 Effects of Gd Y Ratio on the Microstructures and#0183;The microstructures and mechanical properties of Mg-5Y-2Nd-xSm-0.5Zr (x = 0,1,3,5) alloys were investigated.The results indicated that a new Mg 41 Sm 5 phase was generated in the as-cast Sm-containing alloys.As the Sm content was increased,the grain of -Mg matrix was refined and the amount of second phases at the grain boundary increased.After the solution and aging treatment,aEffects of Nd/Gd value on the microstructures and Sep 01,2016 Effects of Gd Y Ratio on the Microstructures and#0183;Four MgGdYNdZr alloys were prepared by mold casting to investigate the effects of Nd/Gd ratios on microstructures and mechanical properties.The as-cast alloys mainly consist of -Mg and -Mg 5 (GdYNd).Volume fractions of the second phase increase and grains were slightly refined with the rising Nd/Gd ratio,when the alloying

Effects of Nd/Gd value on the microstructures and

Four MgGdYNdZr alloys were prepared by mold casting to investigate the effects of Nd/Gd ratios on microstructures and mechanical properties.The as-cast alloys mainly consist of -Mg and -Mg 5(GdYNd).Volume fractions of the second phase increase and grains were slightlyEffects of Nd/Gd value on the microstructures and Effects of Nd/Gd value on the microstructures and mechanical properties of MgGdYNdZr alloys .By Xuan Liu,Zhiqiang Zhang,Qichi Le and Lei Bao.Cite .BibTex; Full citation; Publisher Elsevier BV.Year 2016.DOI identifier 10.1016/j.jma.2016.06.002.OAI identifier Provided by Effects of Nd/Gd value on the microstructures and Effects of Nd/Gd value on the microstructures and mechanical properties of MgGdYNdZr alloys .By Xuan Liu,Zhiqiang Zhang,Qichi Le and Lei Bao.Cite .BibTex; Full citation; Publisher Elsevier BV.Year 2016.DOI identifier 10.1016/j.jma.2016.06.002.OAI identifier Provided by

Effects of Nd/Gd value on the microstructures and

AbstractFour MgGdYNdZr alloys were prepared by mold casting to investigate the effects of Nd/Gd ratios on microstructures and mechanical properties.The as-cast alloys mainly consist of -Mg and -Mg5(GdYNd).Volume fractions of the second phase increase and grains were slightly refined with the rising Nd/Gd ratio,when the Effects of Nd/Gd ratio on the microstructures and Three Mg-Gd-Y-Nd-Zr alloys with different Nd/Gd ratios (0.2,0.5 and 1) are prepared by metal mould casting method.The microstructures and mechanical properties have been investigated.The Nd/Gd ratio has a great influence on the volume fraction of the second phase of the Mg-Gd-Y-Nd-Zr alloys.Effects of Gd/Y Ratio on the Microstructures and Three Mg-Gd-Y-Nd-Zr alloys with different Nd/Gd ratios (0.2,0.5 and 1) are prepared by metal mould casting method.The microstructures and mechanical properties have been investigated.

Effects of Gd/Y Ratio on the Microstructures and

Three Mg-Gd-Y-Nd-Zr alloys with different Nd/Gd ratios (0.2,0.5 and 1) are prepared by metal mould casting method.The microstructures and mechanical properties have been investigated.Effects of Gd substitution on microstructures and low Aug 10,2012 Effects of Gd Y Ratio on the Microstructures and#0183;In this paper,Sr 1 3 x /2 Gd x TiO 3 ceramics (0.00 x 0.05) were prepared from powders obtained by a solgel method.X-ray diffraction results showed that the Gd ion substituted Sr site,and the unit cell volume of doped samples decreased with increasing Gd doping concentrations,which was due to the difference between Sr/Gd ionic radii.Effects of Gd and Zr additions on the microstructures and Oct 26,2015 Effects of Gd Y Ratio on the Microstructures and#0183;Effects of Gd and Zr additions on the microstructures and high-temperature mechanical behavior of MgGdYZr magnesium alloys in the product form of a large structural casting - Volume 30 Issue 22 - Yanlei Li,Guohua Wu,Antao Chen,H.R.Jafari Nodooshan,Wencai Liu,

Effect of rare-earth composition on microstructure and

The effect of changing Gd CY content from 1.2 to 1.6 in the precursor of .Gd;Y/Ba2Cu3O7 superconducting thin lm tapes made by metal organic chemical vapor deposition (MOCVD) at a constant Gd:Y ratio and a xed Zr content of 7.5% has been studied.The inuence of changing the Gd:Y ratio from Gd D0 to Y D0 in 0.2 mol steps at a constant Gd Effect of extrusion on the microstructure and corrosion Magnesium-based alloys presented great potential for biodegradable implant materials.However,the poor mechanical properties and high corrosion rate blocked its extensive application.In this study,a new biodegradable MgZnYGdZr alloy was fabricated and extruded.The microstructure,corrosion morphologies and corrosion products film of the as-cast,homogenized and as-extruded Effect of extrusion on the microstructure and corrosion Magnesium-based alloys presented great potential for biodegradable implant materials.However,the poor mechanical properties and high corrosion rate blocked its extensive application.In this study,a new biodegradable MgZnYGdZr alloy was fabricated and extruded.The microstructure,corrosion morphologies and corrosion products film of the as-cast,homogenized and as-extruded

Effect of Zn addition on microstructure and mechanical

Dec 29,2017 Effects of Gd Y Ratio on the Microstructures and#0183;A comparison of microstructure,mechanical properties and fracture behavior of Mg9Gd3Y x Zn0.5Zr (x = 0,0.2,0.5,1.0,and 1.5) (wt%) alloys under different thermal treatment conditions was investigated in this study.The results showed that the as-cast alloys were comprised of Mg matrix,eutectic compounds and cuboid-shaped phases.Effect of Rolling Reduction on Microstructure and Rolling processing has been carried out on samples cut from the extruded Mg-9Gd-3Y-0.5Zr seamless tubes.Effects of rolling reduction,5%,20% and 70% per pass,on its microstructure and mechanical properties were investigated.The results showed that the strength and ductility varied with increasing rolling passes at different rolling reduction.Effect of LPSO and SFs on microstructure evolution and Jan 30,2017 Effects of Gd Y Ratio on the Microstructures and#0183;Figure 7b summarizes the tensile yield strength and elongation to failure of the existing extruded Mg-Gd/Y based alloys 11,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,which suggests that both

Effect of LPSO and SFs on microstructure evolution and

Jan 30,2017 Effects of Gd Y Ratio on the Microstructures and#0183;Figure 7b summarizes the tensile yield strength and elongation to failure of the existing extruded Mg-Gd/Y based alloys 11,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,which suggests that bothEffect of Gd on the microstructure of as-cast Mg-4.2ZnT D ACCEPTED MANUSCRIPT Effect of Gd on the microstructure of as-cast Mg-4.2Zn-0.8Y (at.%) alloys J.Wu,Y.L.Chiu,I.P.Jones School of Metallurgy and Materials,University of Birmingham,Edgbaston,Birmingham,B15 2TT,UKCited by 29Publish Year 2017Author Siqi Yin,Zhiqiang Zhang,Xuan Liu,Qichi Le,Qing Lan,Lei Bao,Jianzhong CuiEffects of Gd/Y Ratio on the Microstructures and Feb 14,2019 Effects of Gd Y Ratio on the Microstructures and#0183;Abstract.Three MgxGdyY0.5Zr (x + y=13,wt%) alloys were prepared by sand casting to investigate the effects of Gd/Y ratio on the microstructures and mechanical properties.The results show that Gd/Y ratio had little influence on the grain size and the phase constitution of the microstructures.However,the volume fraction of the second phase Mg 24 (Gd,Y) 5 in as-cast state

Chong Zhao's research works Chongqing University

Chong Zhao's 3 research works with 27 citations and 293 reads,including Microstructure and mechanical properties of MgGdZr alloys with low gadolinium contentsAuthor J.L.Li,J.L.Li,D.Wu,R.S.Chen,En-Hou HanPublish Year 2019(PDF) Effects of Nd/Gd ratio on the microstructures and Three Mg-Gd-Y-Nd-Zr alloys with different Nd/Gd ratios (0.2,0.5 and 1) are prepared by metal mould casting method.The microstructures and mechanical properties have been investigated.A comparative study of Mg-Gd-Y-Zr alloy cast by metal Y and Zr are added to Mg-Gd binary alloy in order to increase aging effect and to refine the grains [5-6].Mg-10Gd-3Y-0.45Zr alloy exhibits good combination of strength,ductility and creep resistance in the peak-aged condition [7].Previously,Rokhlin [8],Anthony [9] and He [10] have developed Mg-Gd-Y-

12345NextEffects of Nd/Gd ratio on the microstructures and

Three Mg-Gd-Y-Nd-Zr alloys with different Nd/Gd ratios (0.2,0.5 and 1) are prepared by metal mould casting method.The microstructures and mechanical properties have been investigated.The Nd/Gd ratio has a great influence on the volume fraction of the second phase of the Mg-Gd-Y-Nd-Zr alloys.(PDF) Effects of Zn/Gd ratio on the microstructures and This paper discusses the influence of Zn/Gd ratio on the phase constitutions of as-cast Mg-Zn-Gd alloys in the Mg-rich corner within the range of 0.5-3.0 at.% for Zn content and 0.5-3.0 at.% for

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