Effect of ultrafine-grained microstructure on creep behaviour in 304L austenitic steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00525105" target="_blank" >RIV/68081723:_____/20:00525105 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0921509320304640?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0921509320304640?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.msea.2020.139383" target="_blank" >10.1016/j.msea.2020.139383</a>
Alternative languages
Result language
angličtina
Original language name
Effect of ultrafine-grained microstructure on creep behaviour in 304L austenitic steel
Original language description
The austenitic stainless steel 304 L was subjected to severe plastic deformation using high-pressure torsion technique at room temperature. The severe plastic deformation led not only to the grain size reduction but also to the transformation of austenite into deformation-induced martensite. At high imposed strains the martensitic boundaries disappeared and misorientation distribution exhibited nearly random misorientation distribution. The thermal exposure and tensile creep tests under constant load performed at 923 K and stresses ranging from 50 to 150 MPa revealed that austenitic microstructure contains a phase. The ultrafine-grained microstructure coarsens during creep testing but the mean grain size is significantly finer than the predicted stationary subgrain. The results demonstrate that during creep testing new grains at precipitates of a phase are formed and texture changes. The formation of new grains during creep keeps the microstructure of being ultrafine-grained and thus grain boundary mediated processes are enhanced in this steel.
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 Science and Engineering A-Structural materials
ISSN
0921-5093
e-ISSN
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Volume of the periodical
785
Issue of the periodical within the volume
MAY
Country of publishing house
CH - SWITZERLAND
Number of pages
9
Pages from-to
139383
UT code for WoS article
000536129700017
EID of the result in the Scopus database
2-s2.0-85083887656