: The Initiation and Propagation of The Stress Corrosion Cracks in High Temperature and High Pressure Conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F01%3A00004447" target="_blank" >RIV/60461373:22320/01:00004447 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

: The Initiation and Propagation of The Stress Corrosion Cracks in High Temperature and High Pressure Conditions

Popis výsledku v původním jazyce

The work represents study of environmentally assisted cracking in high temperature and high pressure conditions by means of Rising Displacement Tests. It appeared that the crucial part of RDT was crack initiation point definition. The aim of these experiments was threshold stress intensity factor KISCC determination respectively threshold value of J integral JSCC, crack growth kinetics determination by means of ACPD technique and evaluation of the influence of various displacement rates on tests results(1,2). We tested two kinds of materials: reactor pressure steel 15ChNMFA and austenitic stainless steels A316H in various environments that means primary circuit solution VVER 1000 (15Ch2NMFA) and water solution with defined Cl- concentration (100mg/l in case of A316H stainless steel). We used ACPD technique at crack initiation and propagation observation. The specimens were analyzed by optical microscope and SEM after finishing of the experiment. It was found out that reactor pressure

Název v anglickém jazyce

: The Initiation and Propagation of The Stress Corrosion Cracks in High Temperature and High Pressure Conditions

Popis výsledku anglicky

The work represents study of environmentally assisted cracking in high temperature and high pressure conditions by means of Rising Displacement Tests. It appeared that the crucial part of RDT was crack initiation point definition. The aim of these experiments was threshold stress intensity factor KISCC determination respectively threshold value of J integral JSCC, crack growth kinetics determination by means of ACPD technique and evaluation of the influence of various displacement rates on tests results(1,2). We tested two kinds of materials: reactor pressure steel 15ChNMFA and austenitic stainless steels A316H in various environments that means primary circuit solution VVER 1000 (15Ch2NMFA) and water solution with defined Cl- concentration (100mg/l in case of A316H stainless steel). We used ACPD technique at crack initiation and propagation observation. The specimens were analyzed by optical microscope and SEM after finishing of the experiment. It was found out that reactor pressure

Druh

D - Stať ve sborníku

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F00%2FD096" target="_blank" >GA106/00/D096: Studium faktorů ovlivňujících procesy iniciace a šíření trhlin v kovových konstrukčních materiálech</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2001

Kód důvěrnosti údajů

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

Název statě ve sborníku

Hydrogen Effects on Material Behaviour and Corrosion Deformation Interactions.

ISBN

neuvedeno

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

28-37

Název nakladatele

Sandia National Laboratory

Místo vydání

Jakson Lake Lodge

Místo konání akce

Jakson Lake Lodge

Datum konání akce

16. 9. 2001

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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