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Compression stability of Reversed Austenite in 9Ni steel

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Journal of Materials science & Technology 2012年第6期28卷 558-561页

作者： s.h.chen M.J.Zhao X.Y.Li L.J.Rong Institute of Metal Research Chinese Academy of SciencesShenyang 110016China

The effect of compressive stress on the stability of reversed austenite in gNi steel was investigated by uni- axial and hydrostatic compression. It was found that the uniaxial compressive pressure promoted the Υ-α transformation, while the hydrostatic pressure suppressed the -Υ-α transformation. The pressure dependent transformation behavior can be explained according to thermodynamic analysis.

关键词： 9Ni steel Martensite Reversed austenite hydrostatic pressure Uniaxial compressive pressure

Critical transitions in the shape morphing of kirigami metallic glass

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Journal of Materials science & Technology 2021年第2期61卷 204-212页

作者： D.X.han L.Zhao s.h.chen G.Wang K.C.Chan Advanced Manufacturing Technology Research Center Department of Industrial and Systems EngineeringThe Hong Kong Polytechnic UniversityHung HornKowloonHong KongChina school of Mechanical Engineering Hefei University of TechnologyHefei230009China Laboratory for Microstructures Institute of MaterialsShanghai UniversityShanghai200444China

Kirigami, the ancient Japanese paper cutting technique, has been applied to achieve high stretchability and low energy loss of designed metallic glass. Despite the exploration of the underlying deformation mechanism of kirigami-inspired structures from the energy point of view, the morphable responses of the kirigami patterns and the origin of the kirigami response are yet to be fully understood. This study reveals the mechanical driven-forms of the kirigami structure with the corresponding deformation stages. Based on the beam deflection theory, the elastic buckling behavior of kirigami metallic glass is manifested and a critical force prediction model is developed. Moreover, a force concentration parameter is introduced in the rigid-plastic deformation stage, predicting the nominal ultimate force. The kirigami-inspired facture force is firstly proposed. The findings of these models are in good agreement with the experimental sizedependent kirigami responses, and expected to provide significant insights into the understanding of the deformation behavior and the design of kirigami metallic glasses.

关键词： Metamaterial Kirigami metallic glass Critical load size effect Beam deflection

First-Principle Calculations of half-Metallic Double Perovskite La_(2)BB'O_(6)(B,B'=3d transition metal)

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Communications in Computational Physics 2013年第6期14卷 174-185页

作者： Y.P.Liu s.h.chen h.R.Fuh Y.K.Wang Department of Physics National Taiwan Normal UniversityTaipei 116Taiwan Institute of Physics Academia SinicaTaipei 115Taiwan Graduate Institute of Applied Physics National Taiwan UniversityTaipei 106Taiwan Center for General Education and Department of Physics National Taiwan Normal UniversityTaipei 116Taiwan

In this paper,we present calculations based on density functional theory using generalized gradient approximation(GGA)in double perovskite structure La_(2)BB'O_(6)(B,B'=3d transition metal)out of 45(C_(2)^(10))combinational *** 4 types of magnetic states,namely,ferromagnetic(FM),ferrimagnetic(FiM),antiferromagnetics(AF),and nonmagnetic(NM)with full structure optimization,13 possible surviving,stable FM/FiM-hM materials containing 6 FM-hM materials(La_(2)scNiO_(6),La_(2)CrCoO_(6),La_(2)CrNiO_(6),La_(2)VscO_(6),La_(2)VZnO_(6),and La_(2)VNiO_(6))and 7 FiM-hM materials(La_(2)VFeO_(6),La_(2)ZnCoO_(6),La_(2)TiCoO_(6),La_(2)CrZnO_(6),La_(2)CrMnO_(6),La_(2)scFeO_(6),and La_(2)TiMnO_(6))are *** the correlation effect(GGA+U),there are 6 possible half-metallic stable,surviving(hM)materials containing 3 FMhM materials(La_(2)scNiO_(6),La_(2)CrCoO_(6),and La_(2)CrNiO_(6))and 3 FiM-hM materials(La_(2)VFeO_(6),La_(2)ZnCoO_(6),and La_(2)TiCoO_(6)).

关键词： half-metallic materials double perovskites structure first-principle density functional theory

Investigation of Possible half-Metallic Antiferromagnets on Double Perovskites A_(2)BB′O_(6)(A=Ca,sr Ba;B,B′=Transition Metal Elements)

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Communications in Computational Physics 2013年第2期13卷 526-539页

作者： s.h.chen Z.R.Xiao Y.P.Liu Y.K.Wang Institute of Physics Academia SinicaTaipei 11529Taiwan Graduate Institute of Applied Physics National Chengchi UniversityTaipei 11605Taiwan Department of Physics National Taiwan Normal UniversityTaipei 106Taiwan Center for General Education and Department of Physics National Taiwan Normal UniversityTaipei 106Taiwan

A search was made for possible half-metallic(hM)antiferromagnet(AFM)in all the(C_(2)^(92)=406)double perovskites structures of sr2BB′O6 where BB′pairs are any combination of 3d,4d or 5d transition elements with the exception of *** can also be replaced by Ca or Ba whenever hM-AFM was found and similar calculations were then performed in order to probe further *** was found that A_(2)MoOsO_(6),A_(2)TcReO_(6),A_(2)CrRuO_(6),where A=Ca,sr,Ba,are all potential candidates for *** AFM of A2BB′O6 comes from both the superexchange mechanism and the generalized double exchange mechanism via the B(t2g)-O2pp-B′(t2g)coupling,With the latter also being the origin of their *** considered were the effects of spin-orbit coupling(sOC)and correlation(+U)by introducing+sOC and+U *** is found that the sOC effect has much less influence than the correlation effect on the hMproperty of the *** A_(2)TcReO_(6)and A_(2)CrRuO_(6),after+U,they become *** the future,it is hoped that therewill be further experimental confirmation for these possible hM-AFMcandidates.

关键词： half-metal antiferromagnet GGA+U superexchange generalized double exchange

On the formation of shear bands in a metallic glass under tailored complex stress fields

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Journal of Materials science & Technology 2020年第18期52卷 112-117页

作者： s.h.chen T.Li W.J.Chang h.D.Yang J.C.Zhang h.h.Tang s.D.Feng F.F.Wu Y.C Wu school of Mechanical Engineering Hefei University of TechnologyHefei 230009China state Key Laboratory of Metastable Materials science and Technology Yanshan UniversityQinhuangdao 066004China school of Materials science and Engineering Liaoning University of TechnologyJinzhou 121001China school of Materials science and Engineering Hefei University of TechnologyHefei 230009China

The formation of shear bands in metallic glasses(MGs)was examined by tailoring localized complex stress fields(LCsFs).The findings have shown that the LCsFs in MGs can increase the localization of strained atoms and accelerate the release of accumulated deformation energy for initiating a shear band in confined and thin-layered *** findings not only add more knowledge to the formation mechanisms of shear bands in MGs,but also provide possible rationale for the discrepancies in the mechanical properties of different-sized *** compared with the bulk samples,the higher strength and larger elastic limits in nanoscaled MGs could be attributed to the elimination of stress-concentrators,which can serve as LCsFs.

关键词： Localized complex stress field shear band Metallic glass Molecular dynamics simulation size effect

二甲双胍治疗病人对比剂管理指南的评价：共识、争议和差异

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国际医学放射学杂志 2023年第6期 747-748页

作者： Y.Q.Fan Q.Q.Cai s.h.chen B.Zhang Y.X.Zhang J.h.Zhen 王倩

摘要目的现行的关于二甲双胍与对比剂同时使用的各指南规定间存在较大差异。该研究旨在评价这些指南，并总结各指南推荐规范之间的异同点。方法重点检索2018—

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Rock breaking mechanism of an old mining method in the Tang dynasty mining pit of suichang gold mine

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Rock breaking mechanism of an old mining method in the Tang ...

Geometrical reconstruction of fluorescence events observed by the LhAAsO experiment

中国科学院地质与地球物理研究所2015年度（第15届）学术年会

作者： J.Zhou A.Braun L.Q.Zhang R.h.Xiao Z.F Yang Z.J.Zhang Y.M.he s.h.chen C.Y.Ye Key Laboratory of shale Gas and Geoengineering Institute of Geology and GeophysicsChinese Academy of Sciences school of Engineering and Technology China University of Geoscience

Increasing or decreasing the temperature of rock mass will cause the change of its volume and the development of failures because of stress ***,the temperature effect is a key factor in rock engineering,however,the temperature effect can also be used in mining *** the suichang gold mine,whose development can be dated back to the Tang dynasty a burning wood heating rock method was put into *** order to investigate the mechanism of this old mining method,discrete element modeling was used to simulate the thermal cracking process of the quartzite based on a bonded quartz crystal *** simulation results have demonstrated that under low heat flux input conditions the thermal cracks are mainly located at the weak bonded quartz crystal boundary and as the heat flux increases,some quartzite particles are detached from the original ore body and the size decreased gradually.

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Chinese Physics C 2021年第4期45卷 416-425页

作者： F.Aharonian Q.An Axikegu L.X.Bai Y.X.Bai Y.W.Bao D.Bastieri X.J.Bi Y.J.Bi h.Cai J.T.Cai Z.Cao Z.Cao J.Chang J.F.Chang X.C.Chang B.M.chen J.chen L.chen L.chen L.chen M.J.chen M.L.chen Q.h.chen s.h.chen s.Z.chen T.L.chen X.L.chen Y.chen N.cheng Y.D.cheng s.W.Cui X.h.Cui Y.D.Cui B.Z.Dai h.L.Dai Z.G.Dai Danzengluobu D.della Volpe B.DEtorre Piazzoli X.J.Dong J.h.Fan Y.Z.Fan Z.X.Fan J.Fang J.Fang C.F.Feng L.Feng s.h.Feng Y.L.Feng B.Gao C.D.Gao Q.Gao W.Gao M.M.Ge L.s.Geng G.h.Gong Q.B.Gou M.h.Gu J.G.Guo X.L.Guo Y.Q.Guo Y.Y.Guo Y.A.han h.h.he h.N.he J.C.he s.L.he X.B.he Y.he M.heller Y.K.hor C.hou X.hou h.B.hu s.hu s.C.hu X.J.hu D.h.huang Q.L.huang W.h.huang X.T.huang Z.C.huang F.Ji X.L.Ji h.Y.Jia K.Jiang Z.J.Jiang C.Jin D.Kuleshov K.Levochkin B.B.Li C.Li C.Li F.Li h.B.Li h.C.Li h.Y.Li J.Li K.Li W.L.Li X.Li X.Li X.R.Li Y.Li Y.Z.Li Z.Li Z.Li E.W.Liang Y.F.Liang s.J.Lin B.Liu C.Liu D.Liu h.Liu h.D.Liu J.Liu J.L.Liu J.L.Liu J.s.Liu J.Y.Liu M.Y.Liu R.Y.Liu s.M.Liu W.Liu Y.N.Liu Z.X.Liu W.J.Long R.Lu h.K.Lv B.Q.Ma L.L.Ma X.h.Ma J.R.Mao A.Masood W.Mitthumsiri T.Montaruli Y.C.Nan B.Y..Pang P.Pattarakijwanich Z.Y.Pei M.Y.Qi D.Ruffolo V.Rulev A.saiz L.shao O.shchegolev X.D.sheng J.R.shi h.C.song Yu.V.stenkin V.stepanov Q.N.sun X.N.sun Z.B.sun P.h.T.Tam Z.B.Tang W.W.Tian B.D.Wang C.Wang h.Wang h.G.Wang J.C.Wang J.s.Wang L.P.Wang L.Y.Wang R.N.Wang W.Wang W.Wang X.G.Wang X.J.Wang X.Y.Wang Y.D.Wang Y.J.Wang Y.P.Wang Z.Wang Z.Wang Z.h.Wang Z.X.Wang D.M.Wei J.J.Wei Y.J.Wei T.Wen C.Y.Wu h.R.Wu s.Wu W.X.Wu X.F.Wu s.Q.Xi J.Xia J.J.Xia G.M.Xiang G.Xiao h.B.Xiao G.G.Xin Y.L.Xin Y.Xing D.L.Xu R.X.Xu L.Xue D.h.Yan C.W.Yang F.F.Yang J.Y.Yang L.L.Yang M.J.Yang R.Z.Yang s.B.Yang Y.h.Yao Z.G.Yao Y.M.Ye L.Q.Yin N.Yin X.h.You Z.Y.You Y.h.Yu Q.Yuan h.D.Zeng T.X.Zeng W.Zeng Z.K.Zeng M.Zha X.X.Zhai B.B.Zhang h.M.Zhang h.Y.Zhang J.L.Zhang J.W.Zhang L.Zhang L.Zhang L.X.Zhang P.F.Zhang P.F.Zhang R.Zhang s.R.Zhang s.s.Zhang X.Zhang X.P.Zhang Y.Zhang Y.Zhang Y.F.Zhang Y.L.Zhang B.Zhao J.Zhao L.Zhao L.Z.Zhao s.P.Zhao F.Zheng Y.Zheng B.Zhou h.Zhou J.N.Zhou P Key Laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduSichuanChina state Key Laboratory of Paricle Detection and Electronics China University of science and Technology of China HefeiAnhui 230026China Department of Engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National space science Center Chinese Academy of SciencesBeijing 100190China school of Physics Peking UniversityBeijing 100871China Center for Astrophysics Guangzhou UniversityGuangzhouGuangdong 510006China school of Physics and Astronomy&school of Physics(Guangzhou) Sun Yat-sen UniversityZhuhaiGuangdong 519000China school of Physical science and Technology Guangxi UniversityNanningGuangxi 530004China hebei Normal University ShijiazhuangHebei 050024China school of Physics and Microelectronics Zhengzhou UniversityZhengzhouHenan 450001China school of Astronomy and space science Nanjing UniversityNanjingJiangsu 210023China Key Laboratory of Dark Matter and space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjingJiangsu 210023China Institute of Frontier and Interdisciplinary science Shandong UniversityQingdaoShandong 266237China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao Lee Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China school of Physical science and Technology Southwest Jiaotong UniversityChengduSichuan 610031China College of Physics Sichuan UniversityChengduSichuan 610065China Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasaTibet 850000China school of physics and technology Wuhan UniversityWuhanHubei 430072Ch

The LhAAsO-WFCTA experiment,which aims to observe cosmic rays in the sub-EeV range using the fluorescence technique,uses a new generation of high-performance *** ensure that the experiment has ex-cellent detection capability associated with the measurement of the energy spectrum,the primary composition of cosmic rays,and so on,an accurate geometrical reconstruction of air-shower events is *** paper de-scribes the development and testing of geometrical reconstruction for stereo viewed events using the WFCTA(Wide Field of view Cherenkov/Fluorescence Telescope Array)*** approaches,which take full advantage ofthe WFCTA *** *** is the stereo-angular method,which uses the pointing of triggered siPMs in the shower trajectory,and the other is the stereo-timing method,which uses the triggering time of the fired *** results show that both methods have good geometrical resolution:the resolution of the stereo-timing method is slightly better than the stereo-angular method because the resolution of the latter is slightly limited by the shower track length.

关键词： cosmic ray fluorescence telescope stereo observation geometrical reconstruction

云南生物考察报告(鞘翅目,铁(虫甲)亚科Ⅰ)

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昆虫学报 1961年第Z1期 457-481页

作者：陈世骧谭娟杰虞佩玉

中国科学院与苏联科学院曾联合组织了生物考察队,于1955—1957三年间在云南进行动植物调查,1955年夏并曾去四川峨眉山调查。本篇是关于鞘翅目叶甲科、铁甲亚科材料鉴定的第一部分报告,计共4个属,72个种和亚种,其中有1个新亚属,25个新种,... 详细信息

中国科学院与苏联科学院曾联合组织了生物考察队,于1955—1957三年间在云南进行动植物调查,1955年夏并曾去四川峨眉山调查。本篇是关于鞘翅目叶甲科、铁甲亚科材料鉴定的第一部分报告,计共4个属,72个种和亚种,其中有1个新亚属,25个新种,4个新亚种,还有19个种是我国的新记录。在鉴定过程中,龚韻清同志曾参加了一部分工作,有4个新种是她和作者们合作鉴定的。

关键词：鞘翅小盾片刻点亚科前胸背板刺序正模云南考察报告

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