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材料科学技术（英文版）
材料科学技术（英文版）

胡壮麟

月刊

1005-0302

jmst@imr.ac.cn

024-83978208

110016

沈阳市沈河区文化路72号

材料科学技术（英文版）/Journal Journal of Materials Science & TechnologyCSCDCSTPCD北大核心EISCI
查看更多>>本刊简称《JMST》，（ISSN 1005-0302，CN 21-1315/TG）。1985年创刊。是中国科协主管，中国金属学会，中国材料研究学会和中国科学院金属研究所联合主办的国际性英文期刊，以“加强国际交流，扩大学术影响，服务经济建设”为办刊宗旨，刊登世界各国的具有创新性和较高学术水平的原始性论文，并设有物约综述、快报、简讯及国内外材料界杰出学者简介等栏目，内容包括金属材料、无机非金属材料、复合材料及有机高分子材料等。
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    Microfluidic-directed magnetic controlling supraballs with multi-responsive anisotropic photonic crystal structures

    Lu-Wei HaoJi-Dong LiuQing LiRen-Kun Qing...
    203-211页
    查看更多>>摘要：The design and fabrication of anisotropic photonic crystal supraballs with multiple responses are highly desirable for versatile environmental sensing and flexible displaying.Herein,we developed an available strategy to construct a series of multi-responsive magnetic colloidal photonic crystal (CPC) supraballs with Janus and molecular-analogue structures.Initially,the humidity and temperature sensitive CPC supraballs were obtained via immobilization of polyacrylamide (PAM) and polyisopropylacrylamide (PNI-PAM) hydrogels into the CPC structure,respectively,and CdTe/ZnS quantum dots endow the supraballs fluorescent signal under UV light.Furthermore,Fe3O4 nanoparticles (NPs) were served as a magnetic hemisphere to construct CPC Janus supraballs which can be subsequently assembled into three different molecular-shaped cluster particles that integrate more response types via Fe3O4 NPs hemisphere coa-lescence to a magnetic coupling center,recognizing multiple responses simultaneously that correspond the environmental altering.In addition,2D polychromatic patterns with sensitive CPC pixels printed by automatic printing system were demonstrated,which could monitor the changes of temperature and humidity.The multi-responsive magnetic controlling supraballs and 2D patterns reveal the promising applications in environmental sensing,anti-counterfeiting and displaying.
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    The effect of basal <a> dislocation on { 11(2)1 } twin boundary evolution in a Mg-Gd-Y-Zr alloy

    Huan ZhangYangxin LiYuxuan LiuQingchun Zhu...
    212-218页
    查看更多>>摘要：This study aims to understand the features of { 11(2)1 } twin boundaries in a high strain rate compressed Mg-10Gd-3Y-0.4Zr using electron backscatter diffraction (EBSD) and transmission electron microscopy(TEM).Based on the Schmid factor calculations,the basal <a>-dislocations are easily activated within the { 11(2)1 } twin and suppressed in the surrounding matrix.The consequent basal <a> dislocation-twin interaction during deformation can lead to the misorentiation deviation of { 11(2)1 } twin boundaries,accompanying with the formation of a step at the twin boundary.Such a { 11(2)1 } twin boundary evolution mechanism provides a new vision of twinning behavior in Mg alloys.
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    Balancing the strength and ductility of Mg-6Zn-0.2Ca alloy via sub-rapid solidification combined with hard-plate rolling

    Zhong-Zheng JinMin ZhaHai-Long JiaPin-Kui Ma...
    219-228页
    查看更多>>摘要：In this study,we successfully prepared a Mg-6Zn-0.2Ca alloy by utilizing sub-rapid solidification (SRS)combined with hard-plate rolling (HPR),whose elongation-to-failure increases from ～17 ％ to ～23 ％without sacrificing tensile strength (～290 MPa) compared with its counterpart processed via conven-tional solidification (CS) followed by HPR.Notably,both samples feature a similar refined grain structure with an average grain size of ～2.1 and ～2.5 μm,respectively.However,the high cooling rate of ～ 150 K/s introduced by SRS modified both the size and morphology of Ca2Mg6Zn3 eutectic phase in comparison to those coarse ones under CS condition.By subsequent HPR,the Ca2Mg6Zn3 phase was further refined and dispersed uniformly by severe fragmentation.Specially,the achieved supersaturation containing exces-sive Ca solute atoms due to high cooling rate was maintained in the SRS-HPR condition.The mechanisms that govern the high ductility of the SRS-HPR sample could be ascribed to following reasons.First,refined Ca2Mg6Zn3 eutectic phase could effectively alleviate or avoid the crack initiation.Furthermore,excessive Ca solute atoms in α-Mg matrix result in the yield point phenomenon and enhanced strain-hardening ability during tension.The findings proposed a short-processed strategy towards superior performance of Mg-6Zn-0.2Ca alloy for industrial applications.
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    Experimental investigation and thermodynamic modeling of the U-Nb system

    Chuan MoWenlin MoPeng ZhouBaiXue Bian...
    229-235页
    查看更多>>摘要：The phase equilibria and thermodynamic properties of the U-Nb system were investigated through experiments and thermodynamic modeling.In the experiments,a series of samples with different con-tent of Nb were prepared by arc melting.The Nb content covers the entire composition range of the U-Nb binary system.After solidification,the samples were annealed and then analyzed by X-ray diffraction,scanning electron microscopy,energy dispersive X-ray spectroscopy,differential scanning calorime-ter and neutron diffraction.The equilibrium phases,including γ1 (U-rich bcc),αU,and γ2 (U-depleted bcc),were determined in detail from the experimental characterization.The occurrence of the invariant reaction γ1 → αU + γ2 was confirmed,and the reaction temperature and composition were accurately identified.Moreover,the experimental findings clarify the dispute between the Dwight and Terekhov theories regarding the phase region (i.e.,whether the phase region is αU + γ1 or βU + γ'2).Furthermore,the U-Nb phase diagram was reassessed by incorporating the present experimental data and previously published reliable experimental data from the literature.A set of self-consistent thermodynamic param-eters were developed using CALPHAD (Calculation of phase diagrams),and the calculations reasonably agree with the experimental observations.
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    A new type face-centered cubic zirconium phase in pure zirconium

    Fusen YuanGeping LiFuzhou HanYingdong Zhang...
    236-239页
    查看更多>>摘要：So far,only two orientation relationships (OR) between hexagonal close-packed (HCP) (α phase) and face-centered cubic (FCC) structures in zirconium and titanium alloys have been reported.Here a new type FCC phase (named γphase) with OR:< 11(2)0 >αll< 100 >γ and {0001}αll{002}γ was observed for the first time in annealed pure zirconium by means of transmission electron microscopy (TEM) technique.The α→γphase transformation can be accomplished via expansion along[1(1)00]direction and slip of Shockley partial dislocation with 1/3[1(1)00]on (0001) basal planes.
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