Estimating of the Size of the Maximum Non-metallic Inclusions in Martensitic Steels and their Influence on Fatigue Properties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F20%3AN0000048" target="_blank" >RIV/47718684:_____/20:N0000048 - isvavai.cz</a>
Result on the web
<a href="http://www.scientific.net" target="_blank" >http://www.scientific.net</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.405.282" target="_blank" >10.4028/www.scientific.net/DDF.405.282</a>
Alternative languages
Result language
angličtina
Original language name
Estimating of the Size of the Maximum Non-metallic Inclusions in Martensitic Steels and their Influence on Fatigue Properties
Original language description
Fatigue cracks can start from non-metallic inclusions in the subsurface zone at low stress amplitude level and high number of cycles. This phenomenon was observed mainly at high strength steels and parts with hardened surface zone. Fatigue strength of steel can be then estimated on the basis of hardness and maximum size of defect/inclusions measurements. Many inclusions rating methods exist, some of which have been adopted as the standards. However, “standard” methods for characterization of inclusion content are not convenient for assessment of their influence on fatigue strength of materials. This contribution deals with assessment of maximum sizes of inclusions in three types of martensitic steels used for production of rotating blades of steam turbines (Böhler T552, Böhler T671, and MLX 17) using extreme value statistics methods. Murakami‘s concept of √AREAmax parameter and procedure according to ASTM E2283-08 were applied. Results were compared one another and also with the result of standard methods too. Founded parameters were used for calculation of expected limit of the fatigue strength and compared with results of fatigue test of these steels.
Czech name
—
Czech description
—
Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
—
OECD FORD branch
20501 - Materials engineering
Result continuities
Project
—
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
Defect and Diffusion Forum
ISSN
1012-0386
e-ISSN
1662-9507
Volume of the periodical
405
Issue of the periodical within the volume
1
Country of publishing house
CH - SWITZERLAND
Number of pages
6
Pages from-to
282-287
UT code for WoS article
—
EID of the result in the Scopus database
2-s2.0-85097625260