Microstructural evolution of(TiAl)+Nb+W+B alloy

作     者：黄岚 P.K.LIAW C.T.LIU 刘咏 黄劲松 HUANG Lan;P. K. LIAW;C.T. LIU;LIU Yong;HUANG Jin-song

作者机构：Department of Materials Science and EngineeringThe University of Tennessee 香港城市大学机械与生物医学工程系 中南大学粉末冶金研究院长沙410083 

基　　金：Project(11X-SP173V) supported by the U.S. Fossil Energy Materials Program Project supported by the U.S. National Science Foundation Combined Research-Curriculum Development(CRCD) Program Project(DE-AC05-00OR-22725 UT-Battelle,LLC) supported by Division of Materials Science and Engineering,Office of Basic Energy Science,U.S.Department of Energy 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2011年第21卷第10期

页      码：2192-2198页

摘      要：A newly designed TiAl alloy containing W,Nb,and B was produced through magnetic-flotation-melting *** production of this TiAl-based alloy,15 kg ingot size,which is quite different from the 0.05 kg small ingot produced by arc-melting,has a large effect on the metallurgical properties,such as the grain size and the phase structures of the *** treatments were carefully designed in order to reduce the amount of the high-temperature remaining β phase in the alloy,and to obtain optimal microstructures for mechanical behavior studies.A room-temperature ductility of 1.9% was obtained in the cast TiAl-based alloy after the appropriate heat *** mechanical behavior of the large ingot through mass production of the TiAl-based alloy was largely improved by the alloy design and subsequent heat treatments.

主 题 词：TiAl intermetallics W B tensile ductility microstructural evolution large ingot 

学科分类：08[工学] 080502[080502] 0805[工学-能源动力学] 

核心收录：

D　O　I：10.1016/S1003-6326(11)60994-1

馆 藏 号：203230683...