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High strength Al-Cu-Mg based alloy with synchronous improved tensile properties and hot-cracking resistance suitable for laser powder b e d fusion

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Journal of Materials Science & Technology 2023年第10期141卷 155-170页

作者： Q.Z.wang N.Kang X.Lin M.EL Mansori w.D.Huang State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China Arts et Metiers Institute of Technology MSMPHESAM UniversitéChâlons-en-Champagne F-51006France Key Laboratory of Metal High Performance Additive Manufacturing and Innovative Design MIIT ChinaNorthwestern Polytechnical UniversityXi’an 710072China Texas A&M Engineering Experiment Station Institute for Manufacturing SystemsCollege StationTX 77843USA

In present work,a novel crack-free Al-Cu-Mg-Si-Ti alloy with synchronous improved tensile properties and hot-cracking resistance was proposed and successfully manufactured by laser powder bed fusion(LPBF).The microstructure evolution behaviors and the corresponding strengthening mechanisms were investigated in *** LPBF-processed Al-Cu-Mg-Si-Ti alloy presents a heterogeneous microstructure consisting of ultrafine equiaxed grains(UFGs)at the boundary and coarse columnar grains(CGs)at the center of the single molten ***-precipitated D022-Al 3 Ti particles were found to act as the nuclei to refine the grains at the boundary of the molten pool during solidification process,which is attributed to the low cooling rate providing the sufficient incubation time for the precipitation of D022-Al 3 *** are two orientation relationships(ORs)betweenα-Al and D022-Al 3 Ti,i.e.[001]α-Al//[001]D022-Al3Ti,(200)α-Al//(200)D022-Al3Ti and[1¯1¯2]α-Al//[¯111]D022-Al3Ti,(1¯11)α-Al//(¯11¯2)D022-Al3Ti,which are two of the eight ORs predicted with the E2EM *** grains in present alloy,no matter for UFGs or CG,exhibited high critical hot-cracking stress,which means a strong hot-cracking ***-nanoprecipitation of Cu-,Mg-,and Si-rich Q’and S’phases was introduced to enhance the mechanical performance ofα-Al *** as-built sample exhibits superior tensile properties,with the yield strength(YS)of 473±8 MPa,ultimate tensile strength(UTS)of 541±2 MPa and elongation(EI)of 10.9%±1.2%.

关键词： Laser powder bed fusion High strength Al-Cu-Mg alloys Duplex microstructure Precipitation Tensile properties

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Further investigation on the fusion of ^(6)Li with ^(209)Bi target at near-barrier energies

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chinese Physics C 2024年第7期48卷 106-117页

作者：张高龙焦振威张广鑫 M.R.Cortes 胡世鹏钱建强 D.Mengoni 屈卫卫李聪博郑云张焕乔孙慧斌王楠张春雷 J.J.Valiente-Dobón D.Testov M.Mazzocco A.Gozzelino C.Parascandolo D.Pierroutsakou M.La Commara A.Goasduff D.Bazzacco D.R.Napoli F.Galtarossa F.Recchia A.Illana S.Bakes I.Zanon S.Aydin G.de Angelis M.Siciliano R.Menegazzo S.M.Lenzi J.L.Ferreira J.Rangel Serkan Akkoyun L.F.Canto J.Lubian School of Physics Beihang UniversityBeijing 100191China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China Instituto de Física Universidade Federal Fluminense24210-340NiteróiRio de JaneiroBrazil Institute for Advanced Study in Nuclear Energy&Safety Shenzhen UniversityShenzhen 518060China Shenzhen Key Laboratory of Research and Manufacture of High Purity Germanium Materials and Fetectors Shenzhen UniversityShenzhen 518060China INFN Sezione di PadovaPadovaItaly Dipartimento di fisica Astronomia dell'Universita di padova PadovaItaly State Key Laboratory of Radiation Medicine and Protection School of Radiation Medicine and ProtectionSoochow UniversitySuzhou 215123China china Institute of Atomic Energy Beijing 102413China The Key Laboratory of Beam Technology and Material Modification of Ministry of Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China INFN Laboratori Nazionali di LegnaroI-35020 LegnaroItaly INFN Sezione di NapoliI-80126 NapoliItaly Dipartimento di Farmacia Universitàdi Napoli"Federico II"I-80131 NapoliItaly Department of Natural and Mathematical Sciences Faculty of EngineeringTarsus University33480 MersinTurkiye Physics Division Argonne National LaboratoryLemont-ILUSA Departamento de Matemaética Física e Computaç˜ao Universidade do Estado do Rio de JaneiroFaculdade de Tecnologia27537-000ResendeRio de JaneiroBrazil Department of Physics Sivas Cumhuriyet UniversitySivasTurkey Instituto de Física Universidade Federal do Rio de JaneiroCP 6852821941-972Rio de JaneiroBrazil

The complete and incomplete fusion cross sections for ^(6)Li+^(209)Bi were measured using the in-beamγ-ray method around the Coulomb *** cross sections of(deuteron captured)incomplete fusion(ICF)products were re-quantified experimentally for this reaction *** results reveal that the ICF cross section is equivalent to that of complete fusion(CF)above the Coulomb barrier and dominant near or below the Coulomb barrier.A theoretical calculation based on the continuum discretized coupled channel(CDCC)method was performed for the aforementioned CF and ICF cross sections;the result is consistent with the *** universal fusion function(UFF)was also compared with the measured CF cross section for different barrier parameters,demonstrating that the CF suppression factor is significantly influenced by the choice of potential,which can reflect both dynamic and static effects of breakup on the fusion process.

关键词： cross section incomplete fusion suppression factor weakly bound nuclei

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Expression of TRAIL and TRAIL receptors in normal and malignant tissues

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Cell Research 2005年第6期15卷 430-438页

作者： Raymond A DANIELS,Helen TURLEY,Fiona C KIMBERLEY,Juthathip MONGKOLSAPAYA,Paul ch’EN,Francesco PEZZELLA,Gavin R SCREATON Human Immunology Unit weatherall Institute of Molecular Medicine University of Oxford John Radcliffe Hospital Oxford OX3 9DS UK Nuffield Department of Clinical Laboratory Sciences University of Oxford John Radcliffe Hospital Oxford OX3 9DS UK Hammersmith Hospital Du Cane Road London w12 0NN UK Hammersmith Hospital Du Cane Road London w12 0NN UK Human Immunology Unit weatherall Institute of Molecular Medicine University of Oxford John Radcliffe Hospital Oxford OX3 9DS UK Nuffield Department of Clinical Laboratory Sciences University of Oxford John Radcliffe Hospital Oxford OX3 9DS UK Hammersmith Hospital Du Cane Road London w12 0NN UK

TRAIL, tumor necrosis factor-related apoptosis-inducing ligand, is a member of the TNF family of *** cells were initially found to have increased sensitivity to TRAIL compared with normal cells, raising hopes thatTRAIL would prove useful as an anti-tumor agent. The production of reliable monoclonal antibodies against TRAIL andits receptors that can stain fixed specimens will allow a thorough analysis of their expression on normal and malignanttissues. Here we report the generation of monoclonal antibodies against TRAIL and its four membrane-bound receptors(TR1–4), which have been used to stain a range of normal and malignant cells, as routinely fixed specimens. Low levelsof TRAIL expression were found to be limited mostly to smooth muscle in lung and spleen as well as glial cells in thecerebellum and follicular cells in the thyroid. Expression of the TRAIL decoy receptors (TR3 and 4) was not aswidespread as indicated by Northern blotting, suggesting that they may be less important for the control of TRAILcytotoxicity than previously thought. TR1 and TR2 expression increases significantly in a number of malignant tissues,but in some common malignancies their expression was low, or patchy, which may limit the therapeutic role of *** together, we have a panel of monoclonal antibodies that will allow a better assessment of the normal role ofTRAIL and allow assessment of biopsy material, possibly allowing the identification of tumors that may be amenable toTRAIL therapy.

关键词： apoptosis immunohistochemistry monoclonal antibodies tumor markers.

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Seasonality in human semen quality of smokers and non-smokers: effect of temperature

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Asian Journal of Andrology 2004年第3期6卷 243-247页

作者： Robert Kunzle Michael D.Mueller Alexander w.Huber Heinz Drescher Nick A.Bersinger Department of Obstetrics and Gynaecology University of BerneBerneCH-3010SwitzerlandDepartment of Obstetrics and GynaecologyUniversity of BerneBerneCH-3010SwitzerlandDepartment of Obstetrics and GynaecologyUniversity of BerneBerneCH-3010SwitzerlandMCL LaboratoriesDudingenSwitzerlandDepartment of Obstetrics and GynaecologyUniversity of BerneBerneCH-3010Switzerland

Aim: To analyse the possible effect of seasonal variation on semen parameters. Methods: The participants consisted of 1688 men attending the andrology laboratory between 1991 and 1997 for reduced fertility in the couple. Semen analysis was performed according to the wHO manual. The 84 individual months of the study period were each assigned to one of the three groups according to the average monthly outside temperature; Group A (temperature 13.3℃). Results: when comparing the different sperm parameters, the morphology was significantly better in Group C. However, when the smokers were analysed separately, this difference disappeared and significant seasonal variations were found in sperm density, total sperm count, motility and total motile sperm; they were deteriorated in the warmer season. In non-smokers, no such negative effect of increased temperature was observed. Conclusion: Sperm quality is influenced by seasonal factors. Increased environmental temperature, (maybe also light exposure) has an additional negative effect on the spermato-genesis in smokers, leading to reduced sperm quality in men with borderline fertility.

关键词： sperm quality seasonal temperature fertility smoking

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去除烧结和电炉废气中二恶英的方案

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钢铁 2001年第10期36卷 69-74页

作者： K.Hofstadler w.Gebert ch.Lanzerstorfer J.Lehner A.Friedacher 奥钢联工程技术公司雷欧本矿冶大学

20世纪 90年代初 ,由于各国政府和绿色环保组织要求极大降低二恶英和其他有害物质的排放量 ,使钢铁工业遭受巨大压力。从那时起 ,奥钢联工程技术公司 (VAI)就着手进行新一代烧结废气净化系统和创新型电炉废气净化技术的开发。一个主要... 详细信息

20世纪 90年代初 ,由于各国政府和绿色环保组织要求极大降低二恶英和其他有害物质的排放量 ,使钢铁工业遭受巨大压力。从那时起 ,奥钢联工程技术公司 (VAI)就着手进行新一代烧结废气净化系统和创新型电炉废气净化技术的开发。一个主要目标就是要开发出一种新系统 ,与传统系统相比 ,不仅具有更高的除尘效率 ,而且还能够有效地去除二恶英和其他有害物质。努力的结果是 ,开发出的系统可使二恶英的去除效率达到 80 %～ 99% ,即净化后气体中二恶英的浓度可降至 0 .1～ 0 .4ng I-

关键词：烧结电炉废气二恶英 PCDD/F

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THEORY OF ROLLING

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Science in china,Ser.A 1952年第2期 193-229页

作者： wEI ZANG ch’IEN & chIH TA ch’EN Tsing Hua University

I. INTRODUCTION Theory of rolling applicable to the sheet or strip must give a reasonable explanation on the following experimental facts: 1. The friction hill in the pressure distribution between the rolls and materi... 详细信息

关键词： THEORY OF ROLLING

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Contribution of periphytic biofilm of paddy soils to carbon dioxide fixation and methane emissions

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The Innovation 2022年第1期3卷 54-61页

作者： Sichu wang Pengfei Sun Guangbin Zhang neil Gray Jan Dolfing Sofia Esquivel-Elizondo Josep Peñuelas Yonghong wu State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of Sciences71 East Beijing RoadNanjing 210008China Zigui Three Gorges Reservoir Ecosystem Observation and Research Station of Ministry of Water Resources of the People’s Republic of ChinaShuitianba ZiguiYichang 443605China College of Advanced Agricultural Science University of Chinese Academy of SciencesNo.19(A)Yuquan RoadShijingshan DistrictBeijing 100049China School of Natural and Environmental Sciences Newcastle UniversityNewcastle upon Tyne NE17RUUK Faculty of Energy and Environment Northumbria UniversityNewcastle upon Tyne NE18QHUK Department of Microbiome Science Max Planck Institute for Developmental BiologyMax-Planck-Ring 572076 TüubingenGermany Consejo Superior de Investigaciones Científicas(CSIC) Global Ecology UnitCentre for Ecological Research and Forestry Applications(CREAF)-CSIC-Universitat Autonoma de Barcelona(UAB)Bellaterra08193 BarcelonaCataloniaSpain

Rice paddies are major contributors to anthropogenic greenhouse gas emissions via methane(ch_(4))*** accurate quantification of ch_(4)emissions from rice paddies remains problematic,in part due to uncertainties and omissions in the contribution of microbial aggregates on the soil surface to carbon ***,we comprehensively evaluated the contribution of one form of microbial aggregates,periphytic biofilm(PB),to carbon dioxide(CO_(2))and ch_(4)emissions from paddies distributed across three climatic zones,and quantified the pathways that drive net ch_(4)production as well as CO_(2)*** found that PB accounted for 7.1%-38.5%of ch_(4)emissions and 7.2%-12.7%of CO_(2)fixation in the rice *** their growth phase,PB fixed CO_(2)and increased the redox potential,which promoted aerobic ch_(4)*** the decay phase,PB degradation reduced redox potential and increased soil organic carbon availability,which promoted methanogenic microbial community growth and metabolism and increased ch_(4)***,PB acted as a biotic converter of atmospheric CO_(2)to ch_(4),and aggravated carbon emissions by up to 2,318 kg CO_(2)equiv ha^(-1)season^(-1).Our results provide proof-of-concept evidence for the discrimination of the contributions of surface microbial aggregates(i.e.,PB)from soil microbes,and a profound foundation for the estimation and simulation of carbon fluxes in a potential novel approach to the mitigation of ch_(4)emissions by manipulating PB growth.

关键词： soil paddy dioxide

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High throughput synthesis enabled exploration of CoCrFeNi-based high entropy alloys

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Journal of Materials Science & Technology 2022年第15期110卷 269-282页

作者： L.Zhao L.Jiang L.X.Yang H.wang w.Y.Zhang G.Y.Ji X.Zhou w.A.Curtin X.B.chen P.K.Liaw S.Y.chen H.Z.wang Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory of Metal Materials CharacterizationCentral Iron and Steel Research InstituteBeijing 100081China Institute for Advance Studies in Precision Materials Yantai UniversityYantai 264005China National Center for Materials Service Safety University of Science and Technology BeijingBeijing 100083China Laboratory for Multiscale Mechanics Modeling Ecole Polytechnique Federale de LausanneLausanne CH-1015Switzerland School of Engineering RMIT UniversityMelbourne 3046Australia Department of Materials Science and Engineering The University of Tennessee37996USA

To accelerate the exploration,screening,and discovery of structural high-entropy alloys with targeted properties,the newly developed High-Throughput Hot-Isostatic-Pressing based Micro-Synthesis Approach(HT-HIP-MSA)is employed to efficiently synthesize and characterize 85 combinatorial alloys in a 13-principal element alloying *** Co Cr Fe Ni-based high entropy alloys span 1 quaternary,9 quinary,and 36 senary alloy systems,and their composition-structure-property relationships are characterized and analyzed experimentally and *** the single-phase FCC CoCrFeNi alloy base,with Mn,Cu,Ti,Nb,Ta,Mo,w,Al,and Si as principal element alloying additions,we find(1)the extended Mn solubility in the single-phase FCC CoCrFeNi-Mn_(x) alloys,(2)the destabilizing behavior for most of the quinary and senary alloys,and(3)the distinctive solid-solution-strengthening effects in the *** combining the computational methods,the HT-HIP-MSA can be systematic and economic to explore and refine the compositions,structures,and properties of structural high-entropy alloys.

关键词： High-entropy alloys High-throughput Composition-structure-property

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大萧条时期银行灾难的后果

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世界社会科学 2004年第1期 100-101页

作者： ch.w.卡洛米里什,J.R.梅森,心悦美美

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RESEARch AND DEVELOPMENT OF NEw SUPERALLOY REMELTING PROCES

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Acta Metallurgica Sinica(English Letters) 2005年第1期18卷 81-90页

作者： w.Xie BaosteelGroupShanghaiNo.5SteelCo. Ltd.Shanghai200940China

Shanghai No.5 Steel Co., Ltd. has recently introduced a set of 5-ton protective atmosphere elec-troslag remelting furnace and a set of 10-ton helium-cooling vacuum arc remelting furnace, both of them are the first one of its kind in china. with these equipment, remelting processes about alloy GH4169, ch2132 and GH738 were researched, the process of producing alloy GH4169 by VIM+VAR+ESR triplex-process was developed, and their effects were discussed.

关键词： superalloy argon shield ESR helium cooling VAR VIM+VAR+ESR

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