Studium korozního praskání vysocelegovaných Ni-Cr-Mo ocelí a niklových slitin při pomalé rychlosti deformace

Kód výsledku v IS VaVaI

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Nalezeny alternativní kódy

RIV/25794787:_____/07:#0000093

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Stress Corrosion Cracking at Slow Strain Rate Test of High Alloyed Ni-Cr-Mo Steels and Nickel Alloys

Popis výsledku v původním jazyce

The study was focused on six types of very noble highly alloyed materials: duplex stainless steels Uranus 45N and Uranus 52N+, austenitic stainless steels Uranus SB8 and Uranus B26, nickel alloys Nicrofer 3127hMo and Nicrofer 5923hMo. The aim of this research was to verify the most important characteristics quantifying the corrosion behaviour of the studied alloys especially in the media containing chloride ions. By the slow strain rate testing, the resistivity against mechanical stress and aggressive media (CaCl2, CaCl2+FeCl3 etc.) was monitored. For comparison, the same tests were carried out in inert medium (glycerol). Microfractographic analysis of failed test bodies was conducted: by the light and scanning electron microscopy, failure mechanisms,corrosion mechanisms, degradation types and processes were studied. The metallographic analysis brought the information about microstructure, grain size and texture of the investigated alloys in initial conditions.

Název v anglickém jazyce

Stress Corrosion Cracking at Slow Strain Rate Test of High Alloyed Ni-Cr-Mo Steels and Nickel Alloys

Popis výsledku anglicky

The study was focused on six types of very noble highly alloyed materials: duplex stainless steels Uranus 45N and Uranus 52N+, austenitic stainless steels Uranus SB8 and Uranus B26, nickel alloys Nicrofer 3127hMo and Nicrofer 5923hMo. The aim of this research was to verify the most important characteristics quantifying the corrosion behaviour of the studied alloys especially in the media containing chloride ions. By the slow strain rate testing, the resistivity against mechanical stress and aggressive media (CaCl2, CaCl2+FeCl3 etc.) was monitored. For comparison, the same tests were carried out in inert medium (glycerol). Microfractographic analysis of failed test bodies was conducted: by the light and scanning electron microscopy, failure mechanisms,corrosion mechanisms, degradation types and processes were studied. The metallographic analysis brought the information about microstructure, grain size and texture of the investigated alloys in initial conditions.

Druh

D - Stať ve sborníku

CEP obor

JK - Koroze a povrchové úpravy materiálu

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název statě ve sborníku

Corrosion and Material Protection (ECF Event No. 294)

ISBN

978-80-903933-0-1

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

SVÚOM Praha a.s.

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

1. 10. 2007

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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