Search Results - (Author, Cooperation:G. L. Yu)

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  1. 1
    R. V. Gorbachev ; J. C. Song ; G. L. Yu ; A. V. Kretinin ; F. Withers ; Y. Cao ; A. Mishchenko ; I. V. Grigorieva ; K. S. Novoselov ; L. S. Levitov ; A. K. Geim
    American Association for the Advancement of Science (AAAS)
    Published 2014
    Staff View
    Publication Date:
    2014-10-25
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2013-05-17
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Yasue, K. ; Yu, G. L. ; Wen, C. E. ; Yamada, Y.
    Springer
    Published 2000
    Staff View
    ISSN:
    1573-4803
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes:
    Abstract Ti-6Al and Ti-6Al-4V alloys fabricated by semisolid forming are investigated with microscopic observation, density measurements, X-ray diffraction and mechanical property tests. The effects of the forming pressure, the forming temperature, and the forming loading time on the density of the green compacts are discussed. The shaped green-compact that is prepared by semisolid forming method transforms into intermetallics during the further alloying heat treatment. Pore-free green compacts are obtained under almost all the selective forming conditions. However, pores often appear after alloying heat treatment. The forming loading time has a relatively strong influence on the density of the compact. Experiments have also been carried out on various alloying treatments and the effects of the alloying treatment conditions on the mechanical properties of the compacts. It has been demonstrated that Ti-6Al-4V alloy can be fabricated by semisolid forming and the optimum alloying treatment conditions are at 1473 K treating for 7.2 ks, which can result in the best ultimate tensile strength of 1050 MPa and the elongation of 10% in excess of that of the plastic materials.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1023/A:1026761903655

    Articles: DFG German National Licenses