Fracture Resistance of 14Cr ODS Steel Exposed to a High Temperature Gas
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F17%3AN0000063" target="_blank" >RIV/26722445:_____/17:N0000063 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26620/17:PU127352 RIV/68081723:_____/17:00506817
Result on the web
<a href="http://dx.doi.org/10.3390/met7120560" target="_blank" >http://dx.doi.org/10.3390/met7120560</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/met7120560" target="_blank" >10.3390/met7120560</a>
Alternative languages
Result language
angličtina
Original language name
Fracture Resistance of 14Cr ODS Steel Exposed to a High Temperature Gas
Original language description
This paper studies the impact fracture behavior of the 14%Cr Oxide Dispersion Strengthened (ODS) steel (ODM401) after high temperature exposures in helium and air in comparison to the as-received state. A steel bar was produced by mechanical alloying and hot-extrusion at 1150 degrees C. Further, it was cut into small specimens, which were consequently exposed to air or 99.9% helium in a furnace at 720 degrees C for 500 h. Impact energy transition curves are shifted towards higher temperatures after the gas exposures. The transition temperatures of the exposed states significantly increase in comparison to the as-received steel by about 40 degrees C in He and 60 degrees C in the air. Differences are discussed in terms of microstructure, surface and subsurface Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM) observations. The embrittlement was explained as temperature and environmental effects resulting in a decrease of dislocation level, slight change of the particle composition and interface/grain boundary segregations, which consequently affected the nucleation of voids leading to the ductile fracture.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Metals
ISSN
2075-4701
e-ISSN
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Volume of the periodical
7
Issue of the periodical within the volume
12
Country of publishing house
CH - SWITZERLAND
Number of pages
17
Pages from-to
1-17
UT code for WoS article
000419184500045
EID of the result in the Scopus database
2-s2.0-85038128447