Enhanced plasticity in a Ti-based bulk metallic glass-forming alloy by in situ formation of a composite microstructure

被引：73

作者：

He, G ^{[1
]}

Löser, W ^{[1
]}

Eckert, J ^{[1
]}

Schultz, L ^{[1
]}

机构：

[1] IFW Dresden, Inst Met Werkstoffe, D-01171 Dresden, Germany

来源：

JOURNAL OF MATERIALS RESEARCH | 2002年 / 17卷 / 12期

关键词：

D O I：

10.1557/JMR.2002.0439

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A bulk metallic glass-forming Ti-Cu-Ni-Sn alloy with in situ formed composite microstructure prepared by both centrifugal and injection casting presents more than 6% plastic strain under compressive stress at room temperature. The in situ formed composite contains dendritic hexagonal-close-packed-Ti solid solution precipitates and a few Ti3Sn, beta-(Cu,Sn) grains dispersed in a glassy matrix. The composite microstructure can avoid the development of the highly localized shear bands typical for the room-temperature deformation of monolithic glasses. Instead, highly developed shear bands with evident protuberance are observed, resulting in significant yielding and homogeneous plastic deformation over the entire sample.

引用

页码：3015 / 3018

页数：4

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