The influence of hydrogen to fracture toughness of EUROFER 97

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F07%3A00018824" target="_blank" >RIV/60461373:22320/07:00018824 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

Vliv vodíku na lomovou houževnatost oceli EUROFER 97

Original language description

This article summarizes experimental results of measurements of fracture toughness of EUROFER martensitic steel in presence of hydrogen. Three-point bend method and KLST specimens were used for fracture toughness testing at room temperature and 120°C. The hydrogen effect is shown at the fracture toughness testing at room temperature both of base and weld metals. The J0,2 integral values decrease depending on the hydrogen content in the range of 2 to 4 wppm. The hydrogen content of about 4 wppm decreasesfracture toughness both of base and weld metal to the level 30 KJm-2 or below i.e. approx. 90 % of original values. Hydrogen containing more than 2 wppm manifests itself significantly only in base metal. At the 120°C testing the hydrogen effect manifestitself by lower fracture toughness of base metal specimens only. The J0,2 integral value lowers by about 30 % in the base metal at the hydrogen content approximately 1,2 - 1,6 wppm.

Czech name

Vliv vodíku na lomovou houževnatost oceli EUROFER 97

Czech description

This article summarizes experimental results of measurements of fracture toughness of EUROFER martensitic steel in presence of hydrogen. Three-point bend method and KLST specimens were used for fracture toughness testing at room temperature and 120°C. The hydrogen effect is shown at the fracture toughness testing at room temperature both of base and weld metals. The J0,2 integral values decrease depending on the hydrogen content in the range of 2 to 4 wppm. The hydrogen content of about 4 wppm decreasesfracture toughness both of base and weld metal to the level 30 KJm-2 or below i.e. approx. 90 % of original values. Hydrogen containing more than 2 wppm manifests itself significantly only in base metal. At the 120°C testing the hydrogen effect manifestitself by lower fracture toughness of base metal specimens only. The J0,2 integral value lowers by about 30 % in the base metal at the hydrogen content approximately 1,2 - 1,6 wppm.

Type

D - Article in proceedings

CEP classification

JK - Corrosion and material surfaces

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Koroze a její vliv na pevnost a životnost konstrukcí z oceli

ISBN

80-214-2897-X

ISSN

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e-ISSN

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Number of pages

228

Pages from-to

159-168

Publisher name

VUT Brno

Place of publication

Brno

Event location

Brno

Event date

Apr 25, 2007

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

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