Amorphous Hf-based foams with aligned, elongated pores

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:533

Article

Cox, Marie E.¹  Kecskes, Laszlo J.²  Mathaudhu, Suveen N.³  Dunand, David C.¹ 

[1] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

[2] USA, Weap & Mat Res Directorate, Res Lab, Aberdeen Proving Ground, MD 21005 USA

[3] USA, Div Mat Sci, Res Off, Res Triangle Pk, NC 27709 USA

关键词: Bulk amorphous alloy;    Cellular materials;    Porous materials;    Equal channel angular processing;    Hafnium-based glassy alloy;   

DOI  :  10.1016/j.msea.2011.11.032

来源: Elsevier

【 摘 要 】

Warm equal channel angular extrusion is used to consolidate a blend of amorphous Hf44.5Cu27Ni13.5Ti5Al10 and crystalline W powders. Dissolution of the W phase results in similar to 60% aligned, elongated pores within an amorphous Hf-based matrix exhibiting ductility in compression, but at lower strengths than similar amorphous Zr-based foams due to incomplete bonding between Hf-based powders. (C) 2011 Elsevier B.V. All rights reserved.

【 授权许可】

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