Amorphous Zr-Based Foams with Aligned, Elongated Pores

作者：Cox Marie E^*; Mathaudhu Suveen N; Hartwig K Ted; Dunand David C

来源：Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science, 2010, 41A(7): 1706-1713.

DOI：10.1007/s11661-009-0039-3

Interpenetrating phase composites are created by warm equal channel angular extrusion (ECAE) of blended powders of amorphous Zr(58.5)Nb(2.8)Cu(15.6)Ni(12.8)Al(10.3) (Vit106a) and a crystalline ductile metal (Cu, Ni, or W). Subsequent dissolution of the continuous metallic phase results in amorphous Vit106a foams with similar to 40 pct aligned, elongated pores. The extent of Vit106a powder densification in the composites improves with the strength of the crystalline metallic powder, from low for Cu to high for W, with a concomitant improvement in foam compressive strength, ductility, and energy absorption.

• 出版日期2010-7
• 单位西北大学