Crystallization, high temperature deformation behavior and solid-to-solid formability of a Ti-based bulk metallic glass within supercooled liquid region

被引：28

作者：

Lee, Kwang Seok ^{[1
]}

Kim, Seongwook ^{[1
]}

Lim, Ka Ram ^{[2
]}

Hong, Sung Hwan ^{[3
,4
]}

Kim, Ki Buem ^{[3
,4
]}

Na, Young Sang ^{[2
]}

机构：

[1] Korea Inst Mat Sci, Commercializat Res Ctr, Proc Commercializat Div, Mat Deformat Team, 797 Changwondaero, Chang Won 642831, Gyeongnam, South Korea

[2] Korea Inst Mat Sci, Metall Mat Div, Titanium Dept, 797 Changwondaero, Chang Won 642831, Gyeongnam, South Korea

[3] Sejong Univ, Fac Nanotechnol & Adv Mat Engn, HMC, 98 Gunja Dong, Seoul 143747, South Korea

[4] INAME, 98 Gunja Dong, Seoul 143747, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 663卷

关键词：

Bulk metallic glasses; Crystallization; High temperature deformation; Processing map; Warm extrusion; FORMING ABILITY; BIOMEDICAL APPLICATIONS; THERMAL-STABILITY; AMORPHOUS ALLOY; COMPOSITES; KINETICS; TRANSITION; PLASTICITY; PARTICLES; EXTRUSION;

D O I：

10.1016/j.jallcom.2015.12.114

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Empirical information of crystallization was first deduced using differential scanning calorimeter for a monolithic Ti44.4Zr6.6(Cu0.8Ni0.15Sn0.05)(49) bulk metallic glass with 2 mm in diameter, characterized by a high activation energy and short incubation time for crystallization. Through the understanding of the compressive deformation modes as a function of temperature and strain rate within supercooled liquid region, processing map was constructed based on dynamic materials model. By overlapping time temperature transformation curve onto processing map, macroscopic formability was found to have a good correspondence with the region of iso-efficiency contours having power dissipation efficiency above 0.4 without in -situ crystallization. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：270 / 278

页数：9

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