共搜索到434条信息，每页显示10条信息，共44页。用时：0小时0分0秒301毫秒

• Effect of trace tungsten on the microstructure of TiAl alloys containing Nb and B

  来源： 《Rare Metals2007年第4期》——LIU Bin, LIU Yong, HUANG Lan, HUANG Jinsong, ZHANG Yonghong, and HUANG Boyun State Key Laboratory of Powder Metallurgy, Central South University, Changsha , China

  , and heavy metals, such as niobium and tungsten, tend to segregate strongly at the interface of the cellu- lar structures and dendrites. Trace tungsten can effectively impede the grain growth and narrow......

• Effect of heat treatment on the Nb distribution and corrosion resistance of Zr-Sn-Nb-Fe zirconium alloy

  来源： 《Rare Metals2008年第2期》——LIU Wenqing GENG Xun LIU Qingdong LI Qiang ZHOU Bangxin YAO Meiyi Instrumental Analysis & Research Center,Shanghai University,Shanghai ,China

  ,which results in the reduction of the niobium content in theα-Zr solid solution.关键词:......

• Preparation and Microstructural Analysis of Ti₂AlC/TiAl（Nb） Composite

  来源： 《Journal Of Wuhan University Of Technology Materials Science Edition2007年第1期》——岳云龙

  Preparation and Microstructural Analysis of Ti2AlC/TiAl(Nb) Composite岳云龙摘 要:By using the spark plasma sintering process, Ti2AlC/TiAl composite with the addition of Niobium (Nb) was prepared in-situ and the microstructure of Ti2AlC/TiAl (Nb) composite was investigated by means of transmission electron microscopy (TEM) and high-resolution electron......

• Synthesis and Characterization of Niobium-doped TiO₂ Nanotube Arrays by Anodization of Ti-20Nb Alloys

  来源： 《JOURNAL OF MATERIALS SCIENCE TECHNOLOG2012年第10期》——Zhengchao Xu ),Qi Li ),Shian Gao ) and Jianku Shang ,) ) Materials Center for Water Purification,Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang ,China ) Department of Materials Science and Engineering,University of Illinois at Urbana-Champaign,Urbana,IL ,USA

  Synthesis and Characterization of Niobium-doped TiO2 Nanotube Arrays by Anodization of Ti-20Nb AlloysZhengchao Xu 1),Qi Li 1),Shian Gao 1) and Jianku Shang 1,2) 1) Materials Center for Water... of Illinois at Urbana-Champaign,Urbana,IL 61801,USA摘 要:Well crystallized niobium-doped TiO2 nanotube arrays(TiNbO-NT) were successfully synthesized via......

• Effect of Rare Earths on Properties of BNbRE Rail Steel

  来源： 《JOURNAL OF RARE EARTHS2003年第4期》——王荣 李春龙 智建国

  Effect of Rare Earths on Properties of BNbRE Rail Steel 王荣1,李春龙1,智建国1 (1.Baotou Iron & Steel (Group) Abstract:The development and properties of BNbRE rail steel and the effect of RE on rail steel were studied. The results show that the properties of rail steel (σb≥980 MPa, δ5≥8%) can be improved by adding RE and niobium and adjusting the content of C, Si and Mn in steel. At the same time......

• Nb-Ti微合金钢中的奥氏体晶粒长大行为研究

  来源： 《钢铁2010年第4期》——王远琦 陈小伟 李志华 贾书君 刘清友

  Nb-Ti微合金钢中的奥氏体晶粒长大行为研究王远琦1,陈小伟2,李志华2,贾书君3,刘清友3(1.北京市钢研科技集团公司科技信息室2.巨龙钢管有限公司,河北沧州 0626583.钢铁研究总院 结构材料研究所,北京 100081)摘 要:Nb,Ti是管线钢中常用的合金元素.主要通过热处理和喷碳处理等手段研究了合金元素Nb,Ti的含量及加热制度对再加热奥氏体晶粒长大的影响.试验结果表明:试验钢在再加热过程中,奥氏体晶粒尺寸随加热温度升高而增大;在常规含铌钢中,为获得较小的加热态奥氏体晶粒,钛的质量分数应控制在一定范......

• Transformations and phase relations in Nb-Ti-Si ternary system at 1373～1473K

  来源： 《中国有色金属学报(英文版)2002年第3期》——王日初 柳春雷 金展鹏

  ......

• Microstructure and dry wear properties of Ti-Nb alloys for dental prostheses

  来源： 《中国有色金属学报(英文版)2009年增刊第3期》——徐丽娟 肖树龙 田竟 陈玉勇 黄玉东

  ;    Abstract: The microstructure and properties of a series of binary Ti-Nb alloys for dental prostheses with niobium contents ranging from 5% to 20% were investigated. The experimental results indicate that the crystal structure and morphology of Ti-Nb alloys are sensitive to their niobium contents. When Nb content is 5%, the acicular α crystal grain is observed. When Nb content......

• MODELING OF STRAIN-INDUCED PRECIPITATION KINETICS IN Nb MICROALLOYED STEELS

  来源： 《Acta Metallurgica Sinica2006年第5期》——D. Wu C.M. Li X.G. Zhou Z.Li Z.Y. Liu

  from austenite has been investigated for different temperatures and strains. Nucleation theory and the solubility product of niobium, carbon, and nitrogen in austenite have been used to derive equations......

• 湘南长城岭超大型铷铌钽矿金属元素赋存状态及规律

  来源： 《中南大学学报(自然科学版)2021年第3期》——王雷 朱恩异 任涛 肖庆飞 韩润生 谢贤 蒋宗和 李洋海

  , accounting for 97.73% of the total mass fraction. Rubidium and other rare metal elements host in muscovite and sericite with the form of isomorphism. The mass fraction of rubidium, lithium, niobium and tantalum are 1.030%, 0.560%, 0.024% in muscovite, respectively. The mass fraction of rubidium, lithium, niobium and tantalum are 0.320%, 0.050%, 0.022% in sericite, respectively. The muscovite......