Indentation fracture toughness of amorphous steel

被引：53

作者：

Hess, PA

Poon, SJ

Shiflet, GJ

Dauskardt, RH ^{[1
]}

机构：

[1] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[2] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA

[3] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA

来源：

JOURNAL OF MATERIALS RESEARCH | 2005年 / 20卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1557/JMR.2005.0104

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Indentation fracture toughness experiments were performed on amorphous steel. Measured toughness values were 3.2 +/- 0.3 MPa root m for 3-mm-thick specimens and 3.8 +/- 0.3 MPa root m for 10-mm-thick specimens. Crack geometry was determined be of the "Palmqvist" or radial configuration. High indentation loads >40 N were necessary for crack formation, and indentation cracks did not form adjacent to every indent, or in a uniform pattern. Possible reasons for crack formation thresholds and,geometry are discussed.

引用

页码：783 / 786

页数：4

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