location: Current position: Yanhui LI >> Scientific Research >> Paper Publications

Formation and mechanical properties of a Zr73Al8Cu6Ni13 bulk metallic glass composite containing in-situ beta-Zr dendrites

Hits:

Indexed by:期刊论文

Date of Publication:2019-09-15

Journal:JOURNAL OF ALLOYS AND COMPOUNDS

Included Journals:SCIE、EI

Volume:801

Page Number:175-180

ISSN No.:0925-8388

Key Words:Composites; Bulk metallic glasses; Mechanical properties; Plasticity; Dendrites; beta-phase

Abstract:The variations of structure and mechanical properties with sample diameter (d) for ZrAlCuNi alloys containing a high Zr content of 73 at.% were investigated. A Zr73Al8Cu6Ni13 alloy forms a single glassy phase with a d of 1.0 mm and changes to a composite of beta-Zr dendrites dispersing homogeneously in metallic glass matrix when the d increases to 1.5-3.0 mm. The Zr73Al8Cu6Ni13 bulk metallic glass composites (BMGCs) exhibit high compressive plastic strain of over 35% without final failure, superior to that of 4.5% for the phi 1.0 mm bulk metallic glass (BMG) sample, and the yield strength of similar to 1510 MPa is comparable to the BMG. The mechanisms of formation of the beta-Zr dendrites and plasticity improvement of the BMGCs were also discussed. (C) 2019 Elsevier B.V. All rights reserved.

Pre One:Preparation and electromagnetic properties of Fe80.7Si4B13Cu2.3 nanocrystalline alloy powders for electromagnetic wave absorbers in X-band

Next One:Nanoporous L1(0)-FePt with high coercivity