The Effect of Long-Term Ageing at 475 °C on Microstructure and Properties of a Precipitation Hardening MartensiticStainless Steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25870807%3A_____%2F22%3AN0000038" target="_blank" >RIV/25870807:_____/22:N0000038 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2075-4701/12/10/1643" target="_blank" >https://www.mdpi.com/2075-4701/12/10/1643</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/met12101643" target="_blank" >10.3390/met12101643</a>
Alternative languages
Result language
angličtina
Original language name
The Effect of Long-Term Ageing at 475 °C on Microstructure and Properties of a Precipitation Hardening MartensiticStainless Steel
Original language description
The effect of long-term ageing (1000, 2000, and 3000 h) at 475 °C on mechanical properties, microstructure, and substructure of CUSTOM 465® maraging stainless steel was studied. The additional precipitation of nanometric particles of η-Ni3Ti phase in partly recovered lath martensite and decomposition of the BCC solid solution accompanied by the formation of nanometric Cr-rich α’particles were identified. The fraction of reverted austenite in the final microstructure gradually increased with time of ageing at 475 °C. Ageing resulted in a gradual slight decline (up to 10%) in yield strength, ultimate tensile strength, and hardness. On the other hand, for all ageing, dwells ductility and impact energy values remained almost unchanged. The reason for this phenomenon lies in the gradual increase in the fraction of reverted austenite during long-term ageing at 475 °C and at the same time in the sluggish kinetics of microstructural changes in lath martensite. No susceptibility to 475 °C embrittlement was proved.
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
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Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2022
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
12
Issue of the periodical within the volume
10
Country of publishing house
CH - SWITZERLAND
Number of pages
18
Pages from-to
1643
UT code for WoS article
000875068800001
EID of the result in the Scopus database
2-s2.0-85140878519