Determining Hot Deformation Behavior and Rheology Laws of Selected Austenitic Stainless Steels

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F23%3A00579910" target="_blank" >RIV/68081723:_____/23:00579910 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27360/23:10254516 RIV/00216305:26110/23:PU150087

Result on the web

<a href="https://www.mdpi.com/2075-4701/13/11/1902" target="_blank" >https://www.mdpi.com/2075-4701/13/11/1902</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/met13111902" target="_blank" >10.3390/met13111902</a>

Result language

angličtina

Original language name

Determining Hot Deformation Behavior and Rheology Laws of Selected Austenitic Stainless Steels

Original language description

Due to their versatile properties, austenitic stainless steels have a wide application potential, including in specific fields, such as the nuclear power industry. ChN35VT steel is a chromium-nickel-tungsten type of steel stabilized by titanium, and it is suitable for parts subjected to considerable mechanical stress at elevated temperatures. However, the available data on its deformation behavior at elevated/high temperatures is scarce. The core of the presented research was thus the experimental characterization of the deformation behavior of the ChN35VT steel under hot conditions via the determination of flow stress curves, and their correlation with microstructure development. The obtained data was further compared with data acquired for 08Ch18N10T steel, which is also known for its applicability in the nuclear power industry. The experimental results were subsequently used to determine the Hensel-Spittel rheology laws for both the steels. The ChN35VT steel exhibited notably higher flow stress values in comparison with the 08Ch18N10T steel. This difference was more significant the lower the temperature and the higher the strain rate. Considering the peak stress values, the lowest difference was similar to 8 MPa (1250 degrees C and 0.01 s(-1)), and the highest was similar to 150 MPa (850 degrees C and 10 s(-1)). These findings also corresponded to the microstructure developments-the higher the deformation temperature, the more negligible the observed differences as regards the grain size and morphology.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Metals

ISSN

2075-4701

e-ISSN

2075-4701

Volume of the periodical

13

Issue of the periodical within the volume

11

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

1902

UT code for WoS article

001115917500001

EID of the result in the Scopus database

2-s2.0-85178331139