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| 1 | What is going on in magnesium alloys?显示文摘China has been developed into one of the most active regions in terms of both fundamental and applied research on magnesium(Mg) and its alloys in the world from a solid base laid by its prominent metallurgist and materials scientists over the past decades. Nowadays, a large number of young-generation researchers have been inspired by their predecessors and become the key participants in the fields of Mg alloys, which consequently led to the establishment of China Youth Scholar Society for Magnesium Alloys Research in 2015. Since then, the first two China Youth Scholars Symposiums on Mg Alloys Research had been held at Harbin(2015) and Chongqing(2016) China, respectively. A number of crucial research interests related to fundamental and applied Mg research were discussed at the conferences and summarized in this short perspective, aiming to boost far-reaching initiatives for development of new Mg-based materials to satisfy the requirements for a broad range of industrial employments. Herein, four main aspects are included as follows: i) Plastic deformation mechanism and strengthening strategy, ii) Design and development of new Mg-based materials, iii) Key service properties, and iv) New processing technologies. | X.J. Wang D.K. Xu R.Z. Wu X.B. Chen Q.M. Peng L. Jin Y.C. Xin Z.Q. Zhang Y. Liu X.H. Chen G. Chen K.K. Deng H.Y. Wang | 2018 | Journal of Materials Science & Technology2018，34，2： | 35 |
| 2 | STUDY ON THE SHOCK WAVE CRYSTALLIZATION OF AMORPHOUS ALLOYS BY DSC显示文摘Shock wave and annealing crystallization of amorphous alloys FeSiB, FeMoSiB andFeCuNbSiB were studied by isothermal and non-isothermal DSC technique. It wasfound that the shock wave crystallization is very perfect, the fraction crystallized isvery close to 100%, though the period of crystallization is very short, only about10-4-10-6 s. Their produced phases differ from the parent phase in structure andcomposition. The high velocity of the transformation is very difficult to explain by thediffusion theory of solid state phase transition. | H. Y. Zhao, H. Wang, Q.J. Liu, J.D. Kan and Z.Q. LiuDepartment of Materials Science and Engineering, Yunnan University, Kunming 650091, China | 2002 | Acta Metallurgica Sinica(English Letters)2002，15，5： | 18 |
| 3 | STUDY ON TEMPERATURE FIELD INDUCED IN HIGH FREQUENCY INDUCTION HEATING显示文摘一个数学模型被麦克斯韦的方程为在高频率正式就职加热期间开发的温度领域(HFIH ) 建立。它要求了解决联合方程电磁并且温度领域。数字模拟用 FEMLAB 被执行。用有试验性的结果的建议模型的计算的比较显示出很好的关联。在象在侧面在板中开发了的温度上的卷的板和卷,应用水流,频率,和拐弯之间的距离那样的高频率正式就职的加热参数的效果也是使用确定的模型讨论。 | H. Shen Z.Q. Yao Y.J. Shi J. Hu | 2006 | Acta Metallurgica Sinica(English Letters)2006，19，3： | 18 |
| 4 | TiZr-base Bulk Metallic Glass with over 50 mm in Diameter显示文摘Low-cost TiZr-base bulk metallic glasses(BMGs)(Ti36.1Zr33.2Ni5.8Be24.9)100-xCux(x=5,7 and 9) with a maximum size of over 50 mm in diameter were developed by optimizing the alloy composition.The idea is initiated by selecting a particular microstructure comprising primary β-Ti dendrite and amorphous phase.Afterwards,based on this composition of amorphous phase,a class of TiZr-base bulk metallic glasses was designed step by step to reach the optimum composition range.The glass transition temperature(Tg),initial crystallization temperature(Tx) and width of supercooled region(△T) of(Ti36.1Zr33.2Ni5.8Be24.9)91Cu9 BMG are 611,655 and 44 K,respectively.The(Ti36.1Zr33.2Ni5.8Be24.9)91Cu9 BMG exhibits low density of 5.541 g·cm-3 and high compressive fracture strength of 1800 MPa,which promises the potential application as structural materials. | M. Q. Tang H.F. Zhang Z. W. Zhu H.M. Fu A.M. Wang H. Li Z.Q. Hu | 2010 | Journal of Materials Science & Technology2010，26，6： | 17 |
| 5 | Effects of welding parameters and post-heat treatment on mechanical properties of friction stir welded AA2195-T8 Al-Li alloy显示文摘In this study, the effects of main welding parameters(rotation speed(ω) and welding speed(v)) on the microstructure, micro-hardness distribution and tensile properties of friction stir welded(FSW)2195-T8 Al-Li alloy were investigated. The effects of T6 post-treatments at different solution and aging conditions on the mechanical properties and microstructure characteristics of the FSW joints were also investigated. The results show that with increasing and v, both strength and elongation of the joints increase first, and then decrease with further increase of and v. All the joints under varied welding parameters show significant strength loss, and the strength reaches only 65% of the base metal. The effect of T6 post-heat treatment on the mechanical properties of the joints depends on the solution and aging conditions. Two heat treatment processes(480℃× 0.5 h quenching + 180℃× 12 h,520℃× 0.5 h quenching + 180℃× 12 h aging) are found to increase the joint strength. Furthermore,low temperature quenching(480℃) is more beneficial to the joint strength. The joint strength can reach 85% of the base metal. Whereas both low temperature aging(140℃× 56 h) and stepped aging(100℃× 12 h + 180℃× 3 h) processes decrease the joint strength. After heat treatment all the joints show decreased ductility due to the obvious grain coarsening in the nugget zone(NZ) and thermo-mechanically affected zone(TMAZ). | J. Zhang X.S. Feng J.S. Gao H. Huang Z.Q. Ma L.J. Guo | 2018 | Journal of Materials Science & Technology2018，34，1： | 16 |
| 6 | EFFECT OF P,S AND Si ON THE SOLIDIFICATION,SEGREGATION,MICROSTRUCTURE AND MECHANICAL PROPERTIES IN Fe-Ni BASE SUPERALLOYS显示文摘EFFECTOFP,SANDSiONTHESOLIDIFICATION,SEGREGATION,MICROSTRUCTUREANDMECHANICALPROPERTIESINFe-NiBASESUPERALLOYSZ.Q.Hu;W.R.SunandS... | Z.Q. Hu W.R.Sun and S.R. Guo(Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China | 1996 | Acta Metallurgica Sinica(English Letters)1996，9，6： | 13 |
| 7 | MICROSTRUCTURE AND MECHANICAL PROPERTIES OF Mg-Li ALLOY WITH Ca ADDITION显示文摘Mg-9wt%Li-2wt%Zn alloy was prepared and studied in this article. The addition of Ca to the alloy from 0.1wt% to 1wt% can refine the α-Mg and the best effect of refinement occurs when Ca content is 0.4wt%-0.5wt%. The billets can be rolled to thin sheets at room temperature, from which it is obvious that the addition of Ca improves alloys’ formality, while it decreases with the excess addition of Ca. The results also show that the ultimate tensile strength (UTS) and yield strength (YS) of the alloy with 1wt% Ca may rise by 28% and 25%, respectively, however, the elongation decreases. It is clarified that the adsorption of proper Ca on the grain boundaries refines α-Mg and improves the tensile properties, but the presence of excess Ca and stable Ca2Mg6Zn3 phase worsens the elongation. | H.B. Li G. C. Yao Z.Q. Guo Y.H. Liu H.J. Yu H.B. Ji | 2006 | Acta Metallurgica Sinica(English Letters)2006，19，5： | 9 |
| 8 | FEM SIMULATION OF RESIDUAL STRESSES INDUCED BY LASER SHOCK WITH OVERLAPPING LASER SPOTS显示文摘有限元素方法被介绍在激光吃惊处理对待的材料达到剩余压力地的数字模拟。单个激光震动与方形、圆的激光点产生的剩余压力的分发被试验性的结果预言并且验证。与有限元素方法(女性) 模型,不同重叠率的效果和剩余压力的分发上的影响序列被模仿。结果显示那:(1 ) 重叠激光吃惊能增加压缩剩余压力。然而,它不在塑料的生长上是有效的结盟影响深度;(2 ) 重叠率应该为大区域处理小心地被优化并且选择。适当重叠率是有益的获得一块同类的剩余压力地;(3 ) 影响顺序在剩余压力地上有大效果。获得一块同类的剩余压力地能极大地稀释“剩余压力洞”的现象。 | Y.X. Hu Z.Q. Yao | 2008 | Acta Metallurgica Sinica(English Letters)2008，21，2： | 9 |
| 9 | DEFORMATION ENHANCED FERRITE TRANSFORMATION IN PLAIN LOW CARBON STEEL显示文摘The microstructure evolution during deformation enhanced transformation of under cooled austenite of a plain low carbon steel has been investigated by means of hot compression simulation experiment under various conditions of strain rate,deforma- tion temperature and strain. The effect of austenite grain size on the strain enhanced ferrite transformation has been studied. The ferrite dynamic recrystallization involved in successive hot deformation has been explored. | Z.Q. Sun, W Y. Yang, A.M. Hu and P. Yang (State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China) (School of Material Science and Engineering, University of Science and Technology Beijin | 2001 | Acta Metallurgica Sinica(English Letters)2001，14，2： | 7 |
| 10 | MECHANISM OF SECONDARY M_(23)C_6 PRECIPITATION AROUND MC IN A COBALT-BASE SUPERALLOY显示文摘1.IntroductionCobalt-basesuperalloyshavewidelybeenusedashightemperaturestructuralcomponentsinaircraftandindustrialturbinesbecauseoftheirhighrupturestrength,goodhotcorrosionresistanceaswellashighincipientmeltfngpoint.Theyarestrengthenedprincipallybyca... | W.H. Jiang X.D. Yao H.R. Guan and Z.Q. Hu(1) Department of Superalloys, Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110015, China2) Department of Metal Materials Engineering, Shenyang Polytechnic University) Shenyang 110023, Chi | 1999 | Acta Metallurgica Sinica(English Letters)1999，12，2： | 6 |
| 11 | EFFECT OF CHROMIUM AND BORON ON ENVIRONMENTAL EMBRITTLEMENT OF FORGED Fe_3Al显示文摘The effects of addition of chromium or boron on room temperature tensile properties,fracture behavior and susceptibility to test environments (air vs. vacuuwi of forged Fe3Al have been investigated. The results indicated that both chromium and boron result in increasing room temperuture ductility and fracture strength of the Fe3Al alloy whether tested in air or in vacuum. The susceptibility to test envimnment was described with the embrittlement index I: I=(δv-δA)/δv. The embrittlement indexes, for Fe-30Al, Fe-30Al-4Cr and Fe-30Al-0. 13B (at. %), are 24%, 37% and 29%,respectively. Scanning electron microscope examination of fracture surface revealed that the fracture mode of the three alloys remains unchanged, and all of them exhibited a transgranular cleavage fracture mode when tested in vacuum or air. | J.Q. Su S.J Gao and Z.Q. Hu (Liaoning Key Laboratory for Materials and Hydrogen, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China)(National Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences, | 1997 | Acta Metallurgica Sinica(English Letters)1997，10，3： | 5 |
| 12 | Influence of Re on the Properties of a NiCoCrAlY Coating Alloy显示文摘MCrAlY can serve as stand-alone overlay coatings or bond coats in thermal barrier coating systems, and its properties play a vital role in determining the performance of these coating systems. In order to further understand the behavior of MCrAlY coatings, several NiCoCrAlY model alloys with different levels of Re (0.3 wt%, 6 wt%, and 9 wt%) were investigated. Microstructural observation showed the addition of Re promoted the precipitation of Cr-rich phases, such as α-Cr and σ. The presence of α-Cr lowered the coecient of thermal expansion (CTE) of the coating alloys, which could reduce the CTE mismatch at the scale-metal interface. The solid solution strengthening effect of Re is responsible for an increase in Rockwell hardness of the coating alloys. But the isothermal oxidation resistance at 1100oC was deteriorated due to the precipitation of brittle α-Cr phase, a phase of inferior oxidation resistance compared with β-NiAl and γ-Ni. | J.J. Liang H. We Y.L. Zhu X.F. Sun Z.Q. Hu M.S. Dargusch X.D. Yao | 2011 | Journal of Materials Science & Technology2011，27，5： | 5 |
| 13 | STUDY ON STRUCTURES OF Al-CuAl_2 EUTECTIC SOLIDIFIED UNDER ELECTROMAGNETIC STIRRING显示文摘An investigation on electromagnetically-stirred solidification of Al-CuAl2 eutectic system is presented in this paper. With electromagnetic stirring in solidification, structural transition from lamellar to rod-like eutectic has been found in the as-cast structures, and provided strong stirring is applied, proeutectic growth of α-Al phase is enhanced. Moreover, the interphase spacing of eutectic is clearly increased with melt flow intensified. Numerical computation of flow field is also presented, and the effect of stirring on structural formation is discussed. | W.Q. Zhang Q.M. Liu Y.F. Zhu Y.S. Yang and Z.Q. Hu(State Key Laboratory of RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China) | 1997 | Acta Metallurgica Sinica(English Letters)1997，10，6： | 4 |
| 14 | STUDY OF THE EFFECT OF BORON CONTENT ON THE ORDERED EXTENT OF THE Ni_3Al INTERMETALLICS COMPOUND BY AP-FIM显示文摘By using AP-FIM the varity of the ordered degree of Ni3Al with L12 structure with B content was studied. The possibility of boron improving ductility was also discussed from bonding between Ni and Al atoms, and antisite defects in Ni3Al. The extent of ordering is reduced with an increase in boron content and the autisite defects are most obvious for 0.52at.K B-doped sample that has the best ductility. Some results were verified by X-ray diffraction non. The addition of boron not only influences electron environment at grain boundary but also in the interior of Ni3Al gm ins, the latter is favorable to improve the ductility of Ni3Al grains. | D.G. Ren Z.Q. Li X.S. Fan and J. T. Guo Laboratory of Atomic Imaging of Solids, Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110015, China | 2000 | Acta Metallurgica Sinica(English Letters)2000，13，4： | 3 |
| 15 | Strengthening and toughening mechanisms in Mg–Zn–Y alloy with a long period stacking ordered structure显示文摘 | X.H. Shao Z.Q. Yang X.L. Ma | 2010 | Acta Materialia2010，，14： | 3 |
| 16 | Measurements of γ/γ' Lattice Misfit and γ' Volume Fraction for a Ru-containing Nickel-based Single Crystal Superalloy显示文摘A conventional X-ray diffractometer has been used to determine the γ/γ lattice misfit and γ volume fraction for a Ru-containing nickel-based single crystal superalloy at room temperature.The rocking curve was used to characterize the distribution of subgrains.The diffraction peaks obtained by ω-2θ scan were used to determine the γ/γ lattice misfit and γ volume fraction.A three peaks fitting model was proposed.The peak fitting results are in good agreement with the model.The X-ray diffraction results indicate that the nickel-based single crystal superalloy was not a perfect monocrystalline material,which is comprised of many subgrains;and each subgrain also consists of large numbers of mosaic structures.In addition,two anomalous reflection phenomena were found during the experiment and discussed with respect to their occurrence and impact on the measurement.The experimental results show that the γ/γ lattice misfit and γ volume fraction will be various at the different regions of its dendritic microstructure.The average γ/γ lattice misfit and γ volume fraction of the experimental alloy are approximately-0.2% and 70%,respectively.Furthermore,the γ volume fraction calculated by atom microprobe(AP) data is also basically consistent with the experimental results. | X.P. Tan J.L. Liu X P Song T. Jin X.F. Sun Z.Q. Hu | 2011 | Journal of Materials Science & Technology2011，27，10： | 3 |
| 17 | Corrosion behavior of SM 80SS tube steel in stimulant solution containing H 2 S and CO 2显示文摘 | Z.F. Yin W.Z. Zhao Z.Q. Bai Y.R. Feng W.J. Zhou | 2007 | Electrochimica Acta2007，，10： | 2 |
| 18 | Synthesis and Characterization of Fe_(50)Cr_(14)Mo_(14)C_(14)B_6Gd_2 Bulk Amorphous Steel显示文摘Bulk amorphous steel having 7 mm thickness was synthesized to evaluate its thermal stability and mechanical properties.The steel was synthesized by Cu mold casting technique using 1-2N pure metals.Characterization of the material was done by X-ray diffraction,differential scanning calorimetry and scanning electron microscopy.The activation energies were calculated by Kissinger equation and it was found that the steel had better stability against crystallization.Mechanical properties like Vicker s hardness,nanohardness,elastic modulus and elastic recovery of as-cast and annealed samples were measured.It was concluded that the present steel had good glass-forming ability(GFA) and mechanical properties. | M. Iqbal J.I. Akhter H.F. Zhang Z.Q. Hu | 2010 | Journal of Materials Science & Technology2010，26，9： | 2 |
| 19 | Influence of retrogression temperature and time on the mechanical properties and exfoliation corrosion behavior of aluminium alloy AA7150显示文摘 | J.F. Li N. Birbilis C.X. Li Z.Q. Jia B. Cai Z.Q. Zheng | 2009 | Materials Characterization2009，，11： | 2 |
| 20 | Finite element modeling of geomaterials using digital image processing显示文摘 | Z.Q. Yue S. Chen L.G. Tham | 2003 | Computers and Geotechnics2003，，5： | 2 |
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