Estimation of fracture toughness using miniature chevron-notched specimens

被引：6

作者：

Sarkar, R. ^{[1
]}

Ray, K. K. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2008年 / 31卷 / 05期

关键词：

chevron-notched specimen; eutectoid steel; miniature specimen;

D O I：

10.1111/j.1460-2695.2008.01237.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An approach for determining fracture toughness of materials using miniature chevron-notched specimens is reported here for the first time. An outline of the principle and the experimental procedure for the test is depicted using results generated on eutectoid steel. Fracture toughness values of soft annealed and fully annealed eutectoid steels with inter-lamellar spacing 167 nm and 549 nm are found to be 76 MPa root m and 56 MPa root m, respectively. The estimated fracture toughness values from miniature specimens are found to be in good agreement with the ones reported for similar bulk materials.

引用

页码：340 / 345

页数：6

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