Glassy steel optimized for glass-forming ability and toughness

被引：51

作者：

Demetriou, Marios D. ^{[1
]}

Kaltenboeck, Georg ^{[1
]}

Suh, Jin-Yoo ^{[1
]}

Garrett, Glenn ^{[1
]}

Floyd, Michael ^{[1
]}

Crewdson, Chase ^{[1
]}

Hofmann, Douglas C. ^{[1
]}

Kozachkov, Henry ^{[1
]}

Wiest, Aaron ^{[1
]}

Schramm, Joseph P. ^{[1
]}

Johnson, William L. ^{[1
]}

机构：

[1] CALTECH, Keck Engn Labs, Pasadena, CA 91125 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 04期

基金：

美国国家科学基金会;

关键词：

boron alloys; chromium alloys; fracture toughness; iron alloys; metallic glasses; molybdenum alloys; nickel alloys; phosphorus alloys; plastic flow; vitrification; BULK METALLIC GLASSES; MECHANICAL-PROPERTIES; AMORPHOUS STEEL; FRACTURE-TOUGHNESS; ALLOYS; MODULUS;

D O I：

10.1063/1.3184792

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An alloy development strategy coupled with toughness assessments and ultrasonic measurements is implemented to design a series of iron-based glass-forming alloys that demonstrate improved glass-forming ability and toughness. The combination of good glass-forming ability and high toughness demonstrated by the present alloys is uncommon in Fe-based systems, and is attributed to the ability of these compositions to form stable glass configurations associated with low activation barriers for shear flow, which tend to promote plastic flow and give rise to a toughness higher than other known Fe-based bulk-glass-forming systems.

引用

页数：3

共 23 条

[1] Cooperative shear model for the rheology of glass-forming metallic liquids [J].