Atomic Structure and Deformation Behavior of Bulk Amorphous Alloys

Nien, T.G ; Hsiung, L.M. ; Choi, B.W.

Lawrence Livermore National Laboratory

关键词: Plastics;    Alloys;    Ambient Temperature;    36 Materials Science;    Shear;   

DOI  :  10.2172/792355
RP-ID  :  UCRL-ID-137132-Rev-1
RP-ID  :  W-7405-Eng-48
RP-ID  :  792355

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objective of this project was to gain a basic understanding of the atomic and defect structure of BAAs and of how structural stability affects their deformation behavior. We placed particular emphasis on understanding (1) shear-band formation, which is the dominant deformation mode at ambient temperature; and (2) Newtonian plastic flow, which is expected to be the dominant deformation mode at supercooled-liquid temperatures in BAAs. Such understandings would allow suppression of shear instability, promotion of homogeneous deformation at low temperatures, and improved formability at supercooled-liquid temperatures.