Development and characterization of low-density Ca-based bulk metallic glasses: An overview

被引：71

作者：

Senkov, O. N. ^{[1
]}

Miracle, D. B. ^{[2
]}

Keppens, V. ^{[3
]}

Liaw, P. K. ^{[3
]}

机构：

[1] UES Inc, Dayton, OH 45432 USA

[2] USAF, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

[3] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2008年 / 39A卷 / 08期

关键词：

D O I：

10.1007/s11661-007-9334-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ca-based bulk metallic glasses (BMGs) have unique properties and represent a new seventh group of BMGs. Many of them have excellent GFA, which can be related to their efficient atomic packing, low onset driving force for crystallization, and high viscosity (high relaxation time) of the supercooled liquid. The Ca-based glasses have the lowest density and elastic moduli among all BMGs discovered to date. Unfortunately, as many other glasses, Ca-based BMGs are brittle below the glass transition temperature, and they also have marginal oxidation and corrosion resistance. The latter can be improved by proper selection of alloying elements. In this article, we review recent work on the development of low-density Ca-based BMGs and discuss the effect of alloy composition on the thermal, physical, and chemical properties of these glasses.

引用

页码：1888 / 1900

页数：13

共 67 条

[1] Formation and thermal stability of Ca-Mg-Ag-Cu bulk glassy alloys [J].