Use of Instrumented Charpy Impact Tests for the Determination of Fracture Toughness Values

被引：0

作者：

Herold, H. ^{[1
]}

Streitenberger, M.

Cammarota, G. P. ^{[2
]}

Casagrande, A. ^{[2
]}

Morri, A. ^{[2
]}

Garagnani, G. ^{[3
]}

机构：

[1] Univ Magdeburg, Lehrstuhl Fugetech, D-39106 Magdeburg, Germany

[2] Univ Bologna, I-40126 Bologna, Italy

[3] Univ Ferrara, I-44100 Ferrara, Italy

来源：

PRAKTISCHE METALLOGRAPHIE-PRACTICAL METALLOGRAPHY | 2010年 / 47卷 / 01期

关键词：

NOTCHED BARS;

D O I：

10.3139/147.110051

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

There were many attempts to correlate Charpy absorbed energy with fracture parameters. Most of these gave empirical or semi-theoretical equations showing this correlation. In the present paper the dynamic yield strength is used to obtain the relation between Charpy V and K-IC. Comparison is made between three structural steels (1.0570 - 1.0511 - 1.8900) and the alloy Ti-Al6-V4. For the steels, fracture toughness experimental values are coherent with those based on data determined with the derived relation. For Ti-Al6-V4 the values deviate from each other, particularly at room temperature, when the contribution of alpha-phase is more important.

引用

页码：34 / 44

页数：11

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