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2018 | OriginalPaper | Buchkapitel

4. Correlation of Instrumented Charpy Load-Displacement Curves with Crack Growth in API 5L Grade X80 Pipeline Steels

verfasst von : V. Khotinov, V. Farber, A. Morozova

Erschienen in: Progress in Materials Science and Engineering

Verlag: Springer International Publishing

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Abstract

The correlation of instrumented Charpy data analysis with fracture mechanisms in API 5L grade X80 pipeline steels has been investigated. Optical fracture analysis has shown solely the occurrence of ductile zones on a fracture surface: shear zone L C, “lamellar” zone L B with separations, and shear lips λ. New parameters of smoothed instrumented impact load vs. displacement curves are suggested for the characterization of impact properties. Co-analysis of the instrumented impact test curves and fracture surface zones allows evaluating crack resistance in addition to standard required characteristics (Charpy toughness, transition temperature, impact yield strength, etc.).

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Literatur
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Metadaten
Titel
Correlation of Instrumented Charpy Load-Displacement Curves with Crack Growth in API 5L Grade X80 Pipeline Steels
verfasst von
V. Khotinov
V. Farber
A. Morozova
Copyright-Jahr
2018
DOI
https://doi.org/10.1007/978-3-319-75340-9_4

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