The Effect of Predeformation on Creep Strength ofn9% Cr Steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00535173" target="_blank" >RIV/68081723:_____/20:00535173 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1996-1944/13/23/5330" target="_blank" >https://www.mdpi.com/1996-1944/13/23/5330</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma13235330" target="_blank" >10.3390/ma13235330</a>
Alternative languages
Result language
angličtina
Original language name
The Effect of Predeformation on Creep Strength ofn9% Cr Steel
Original language description
Martensitic creep-resistant P92 steel was deformed by different methods of severe plasticndeformation such as rotation swaging, high-pressure sliding, and high-pressure torsion at roomntemperature. These methods imposed significantly different equivalent plastic strains of aboutn1–30. It was found that rotation swaging led to formation of heterogeneous microstructures withnelongated grains where low-angle grain boundaries predominated. Other methods led to formationnof ultrafine-grained (UFG) microstructures with high frequency of high-angle grain boundaries.nConstant load tensile creep tests at 873 K and initial stresses in the range of 50 to 300 MPa revealednthat the specimens processed by rotation swaging exhibited one order of magnitude lower minimumncreep rate compared to standard P92 steel. By contrast, UFG P92 steel is significantly softer thannstandard P92 steel, but differences in their strengths decrease with increasing stress. Microstructuralnresults suggest that creep behavior of P92 steel processed by severe plastic deformation is influencednby the frequency of high-angle grain boundaries and grain coarsening during creep.
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
<a href="/en/project/GA19-18725S" target="_blank" >GA19-18725S: Influence of microstructure on creep mechanisms in advanced heat resistant steels</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials
ISSN
1996-1944
e-ISSN
—
Volume of the periodical
13
Issue of the periodical within the volume
23
Country of publishing house
CH - SWITZERLAND
Number of pages
17
Pages from-to
5330
UT code for WoS article
000597473800001
EID of the result in the Scopus database
2-s2.0-85096711098