共搜索到34962条信息，每页显示10条信息，共3497页。用时：0小时0分1秒453毫秒

• Nanostructures and nanoprecipitates induce high strength and high electrical conductivity in a CuCrZr alloy

  来源： 《JOURNAL OF MATERIALS SCIENCE TECHNOLOG2020年第13期》——Z.Y.Zhang L.X.Sun N.R.Tao

  recovery of electrical conductivity. The aged nanostructured CuCrZr alloy exhibited a high tensile strength of 832 MPa and a high electrical conductivity of 71.2% IACS. The details of precipitation tuned...Nanostructures and nanoprecipitates induce high strength and high electrical conductivity in a CuCrZr alloyZ.Y.Zhang1,2,L.X.Sun1,3,N.R.Tao11. Shenyang National Laboratory for Materials Science......

• Microstructure and mechanical properties of high strength as-cast Ti-15-3 alloy

  来源： 《中国有色金属学报(英文版)2002年第3期》——丁宏升 贾均 郭景杰 苏彦庆 傅恒志 周建中

  ......

• 包套锻造对高Nb-TiAl基合金组织的影响

  来源： 《材料工程2004年第8期》——宋西平 林均品 林志 苏喜孔 韩雅芳 徐丽华 徐向俊 王艳丽 李树索 陈国良

  包套锻造对高Nb-TiAl基合金组织的影响 宋西平1,林均品1,林志1,苏喜孔2,韩雅芳2,徐丽华1,徐向俊1,王艳丽1,李树索2,陈国良1 (1.北京科技大学新金司材料国家重点实验室,北京,100083;2.北京航空航天大学高性能材料研究所,北京,100083) 摘要:通过两次包套锻造工艺细化了高Nb-TiAl合金铸态近片层组织.研究发现,两次锻造后接近二次锻造表面基本上是由大量的直线型或者流线型片层组织和少量的再结晶组织组成,而除此以外的大部分区域都发生了较大程度的再结晶,并且晶粒均匀细小.在(α+γ)两相区长时间热处理二次锻后组织可以有效消除β相,获得的仍然是双态组织. 关键词:高Nb-TiAl合金; 包套锻造; 显微组织; [全文内容正在添加中] ......

• Microstructures in a Nb-Cr-V-W-Ta high entropy alloy during annealing

  来源： 《JOURNAL OF MATERIALS SCIENCE TECHNOLOG2020年第18期》——S.K.Varma Francelia Sanchez C.V.Ramana

  Microstructures in a Nb-Cr-V-W-Ta high entropy alloy during annealingS.K.Varma1,Francelia Sanchez1,C.V.Ramana21. Department of Metallurgical, Materials and Biomaterials Engineering, The University of Texas at El Paso2. Mechanical Engineering Department, The University of Texas at El Paso摘 要:A Nb-Cr-V-W-Ta high entropy alloy has been subjected......

• A New Sound Alloy for High Grade Wind Instruments

  来源： 《Rare Metals1990年第2期》——L.J.L.

  A New Sound Alloy for High Grade Wind InstrumentsL.J.L.摘 要:<正> A new sound alloy, abbreviated to S1, has been developed by the General Research Institutefor Non-ferrous Metals, Beijing. The alloy is very suitable for making trumpets, trombones, tenorhorns, saxaphones and other kinds of wind instruments. Beijing Wind Instrument Factory, which......

• High temperature brazing of diamond tools

  来源： 《中国有色金属学报(英文版)2005年第6期》——姚正军 苏宏华 傅玉灿 徐鸿钧

   Article ID: 1003-6326(2005)06-1297-06 High temperature brazing of diamond tools YAO Zheng-jun(姚正军)1, SU Hong-hua(苏宏华)1, FU Yu-can(傅玉灿)2, XU Hong-jun(徐鸿钧)2 (1. College of Materials Science..., the brazed diamond core-drill manufactured using the new developed technique has much higher machining efficiency and much longer operating life. Key words: high temperature brazing; microanalysis......

• Phase-field simulation of formation of cellular dendrites and fine cellular structures at high growth velocities during directional solidification of Ti₅₆

  来源： 《中国有色金属学报(英文版)2005年第3期》——李新中 郭景杰 苏彦庆 吴士平 傅恒志

  of cellular dendrites and fine cellular structures of Ti56Al44 alloy during directional solidification at high growth velocities. The liquid-solid phase transition of L→β was chosen. The dynamics of breakdown... alloy during directional solidification was investigated at high growth velocities using the phase-field method. The liquid-solid transition of L→β was chosen. In present simulation, a phase-field......

• High Strain Rate Superplasticity in a Micro-grained Al-Mg-Sc Alloy with Predominant High Angle Grain Boundaries

  来源： 《JOURNAL OF MATERIALS SCIENCE TECHNOLOG2012年第11期》——F.C. Liu ,) , Z.Y. Ma ) and F.C. Zhang ) ) Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang , China ) State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao , China

  High Strain Rate Superplasticity in a Micro-grained Al-Mg-Sc Alloy with Predominant High Angle Grain BoundariesF.C. Liu 1,2) , Z.Y. Ma 1) and F.C. Zhang 2) 1) Shenyang National Laboratory... superplastic deformation kinetics in the FSP alloy can be attributed to its high fraction of high angle grain boundaries (HAGBs). The analyses of the superplastic data and scanning electron microscopy (SEM......

• Motion behavior of non-metallic particles under high frequency magnetic field

  来源： 《中国有色金属学报(英文版)2009年第3期》——ZHANG Zhong-tao 郭庆涛 于凤云 李捷 张剑 李廷举

  ;                1 Introduction With the rapid growth of aerospace, automobile and electronic industry, high-quality aluminum alloy... aluminum-silicon alloy was chosen to simulate non-metallic particle and study the motion behavior of non-metallic particles under high frequency magnetic field. In this work, the motion behavior......

• Si对高Nb-TiAl合金组织及室温拉伸性能的影响

  来源： 《金属学报2015年第7期》——杨亮 高叔博 王艳丽 叶腾 宋霖 林均品

  Si对高Nb-TiAl合金组织及室温拉伸性能的影响杨亮,高叔博,王艳丽,叶腾,宋霖,林均品北京科技大学新金属材料国家重点实验室摘 要:研究硅化物(Nb5Si3相)析出对高Nb-TiAl合金组织及室温拉伸性能的影响.实验结果表明,硅化物脱溶析出温度在10001200℃之间,析出物位于片层团晶界处,b(B2)相偏析处以及片层之间.添加Si元素后,合金室温拉伸性能有所增加.因为Nb5Si3相的形成使得b(B2)相稳定元素Nb含量下降,导致脆性相b(B2)相体积减少.但是,含Si高Nb-TiAl合金经过热处理后,室温拉伸性能随热处理温度提高而逐步降低.因为沿片层析出的硅化物会导致裂纹沿片层产生与增殖,而且应力会导致硅化物进一步析出,加速裂纹扩展.而且,Si的加入会导致γ相区扩大,在12801300℃之间形成γ......