Fracture Toughness Characterisation of the Martensitic Chromium Steel P91

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F12%3A%230000349" target="_blank" >RIV/26316919:_____/12:#0000349 - isvavai.cz</a>
Result on the web
<a href="http://www.comat.cz/files/proceedings/11/reports/1244.pdf" target="_blank" >http://www.comat.cz/files/proceedings/11/reports/1244.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Fracture Toughness Characterisation of the Martensitic Chromium Steel P91
Original language description
In this paper J-R curves were measured with Charpy size SE(B) and C(T) specimens of P91 steel using the unloading compliance technique. The fracture toughness parameters were determined according to the test standards ASTM E1820 and ISO 12135 and whose evaluation differences and validity criteria were assessed. Despite the available sophisticated instrumentation used for obtaining the J-R curves and strict implementation of the recommended test procedure, a scatter in the initial portion of the curve ispersistent. This creates problems in the evaluation of the measured J-?a values and in obtaining valid and unambiguous JIC and J0.2BL values according to both standards. The influence of these scatter on the fracture toughness values is discussed. Accompanying fractographic studies were performed to assess the J-R curves and to determine the SZW.
Czech name
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Czech description
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Project
<a href="/en/project/FR-TI2%2F279" target="_blank" >FR-TI2/279: *Ductile damage parameters identification for nuclear power stations</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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