Matches in SemOpenAlex for { <https://semopenalex.org/work/W3144720704> ?p ?o ?g. }
- W3144720704 endingPage "159817" @default.
- W3144720704 startingPage "159817" @default.
- W3144720704 abstract "● 9Cr F/M steels exhibit good radiation swelling resistance, thermophysical properties and low thermal expansion coefficients. ● The long-term aging behavior (at 550 °C for 5000 h) of 9Cr F/M steels with different Si content was first investigated. ● During aging the microstructures exhibited highly thermal stability, and M 23 C 6 and MX precipitates also remained unchanged. ● Fe 2 W Laves phase formed after aging for 5000 h with the volume fraction increasing with the increase of silicon content. ● Due to precipitation strengthening of Laves phase particles, the strength of 9Cr F/M steels increased after aging for 5000 h. In view of developing novel alloys for applications in advanced Generation IV lead-cooled fast reactor (LFR) fuel cladding materials, four 9Cr ferrite/martensite (F/M) heat resistant steels with different Si content were developed. In the present work, the long-term thermal aging of 9Cr F/M steels was carried out in air at 550 °C for 500, 1000, 2000 and 5000 h. The microstructural evolution was investigated based on OM, SEM, EBSD and TEM technologies. The changes of mechanical properties after thermal aging were evaluated by room temperature tensile test. During long-term aging, the microstructures of all four steels exhibited highly thermal stability, and M 23 C 6 carbides and MX carbonitrides also remained unchanged. Meanwhile, after aging for 5000 h, a new Fe 2 W-type Laves phase formed in all four steels with an average size of 94.8 ± 17 nm in 9Cr-1Si steel. The tensile properties of all samples aged for 2000 h exhibited almost no change compared with the as-received ones. However, after thermal exposure for 5000 h, the strength of all four 9Cr F/M steels increased due to the precipitation strengthening effect of the small Laves phase particles. Silicon exerted a certain degree of solid solution strengthening effect for 9Cr F/M steels. The volume fraction of Laves phase increased with the increase of Si content. As the Si content was 1%, residual high-temperature ferrite was found in the microstructure, but it has no detrimental effect on the mechanical properties of 9Cr F/M steels studied in the present work. Comprehensively considering the microstructure and mechanical properties, the suitable addition of Si content did not exceed 0.7%." @default.
- W3144720704 created "2021-04-13" @default.
- W3144720704 creator A5008829329 @default.
- W3144720704 creator A5029190192 @default.
- W3144720704 creator A5054273460 @default.
- W3144720704 creator A5061326158 @default.
- W3144720704 creator A5090366405 @default.
- W3144720704 creator A5090880497 @default.
- W3144720704 date "2021-08-01" @default.
- W3144720704 modified "2023-10-13" @default.
- W3144720704 title "Evolution of microstructure and mechanical properties of 9Cr ferrite/martensite steels with different Si content after long-term aging at 550 °C" @default.
- W3144720704 cites W1968959932 @default.
- W3144720704 cites W1972967004 @default.
- W3144720704 cites W1979196023 @default.
- W3144720704 cites W1979200740 @default.
- W3144720704 cites W1982831996 @default.
- W3144720704 cites W1985012856 @default.
- W3144720704 cites W1985551064 @default.
- W3144720704 cites W1990407329 @default.
- W3144720704 cites W1995433606 @default.
- W3144720704 cites W2008642395 @default.
- W3144720704 cites W2010473384 @default.
- W3144720704 cites W2010796765 @default.
- W3144720704 cites W2011049348 @default.
- W3144720704 cites W2011683324 @default.
- W3144720704 cites W2022255014 @default.
- W3144720704 cites W2023144920 @default.
- W3144720704 cites W2026899283 @default.
- W3144720704 cites W2031595120 @default.
- W3144720704 cites W2035332759 @default.
- W3144720704 cites W2039491563 @default.
- W3144720704 cites W2043888508 @default.
- W3144720704 cites W2047834276 @default.
- W3144720704 cites W2052764550 @default.
- W3144720704 cites W2052961371 @default.
- W3144720704 cites W2053369583 @default.
- W3144720704 cites W2060547293 @default.
- W3144720704 cites W2071507034 @default.
- W3144720704 cites W2073826411 @default.
- W3144720704 cites W2075301115 @default.
- W3144720704 cites W2078562877 @default.
- W3144720704 cites W2080991715 @default.
- W3144720704 cites W2087506824 @default.
- W3144720704 cites W2088638444 @default.
- W3144720704 cites W2096188657 @default.
- W3144720704 cites W2255478155 @default.
- W3144720704 cites W2471534963 @default.
- W3144720704 cites W2534322819 @default.
- W3144720704 cites W2561273728 @default.
- W3144720704 cites W2588453316 @default.
- W3144720704 cites W2610785841 @default.
- W3144720704 cites W2623252583 @default.
- W3144720704 cites W2733375736 @default.
- W3144720704 cites W2914894288 @default.
- W3144720704 cites W2919293243 @default.
- W3144720704 cites W2942125263 @default.
- W3144720704 cites W3023398331 @default.
- W3144720704 cites W3024527154 @default.
- W3144720704 cites W3049216079 @default.
- W3144720704 cites W3091954521 @default.
- W3144720704 doi "https://doi.org/10.1016/j.jallcom.2021.159817" @default.
- W3144720704 hasPublicationYear "2021" @default.
- W3144720704 type Work @default.
- W3144720704 sameAs 3144720704 @default.
- W3144720704 citedByCount "23" @default.
- W3144720704 countsByYear W31447207042021 @default.
- W3144720704 countsByYear W31447207042022 @default.
- W3144720704 countsByYear W31447207042023 @default.
- W3144720704 crossrefType "journal-article" @default.
- W3144720704 hasAuthorship W3144720704A5008829329 @default.
- W3144720704 hasAuthorship W3144720704A5029190192 @default.
- W3144720704 hasAuthorship W3144720704A5054273460 @default.
- W3144720704 hasAuthorship W3144720704A5061326158 @default.
- W3144720704 hasAuthorship W3144720704A5090366405 @default.
- W3144720704 hasAuthorship W3144720704A5090880497 @default.
- W3144720704 hasConcept C112950240 @default.
- W3144720704 hasConcept C149912024 @default.
- W3144720704 hasConcept C159985019 @default.
- W3144720704 hasConcept C18747287 @default.
- W3144720704 hasConcept C191897082 @default.
- W3144720704 hasConcept C192562407 @default.
- W3144720704 hasConcept C27501479 @default.
- W3144720704 hasConcept C2776878729 @default.
- W3144720704 hasConcept C2780026712 @default.
- W3144720704 hasConcept C37210646 @default.
- W3144720704 hasConcept C5335593 @default.
- W3144720704 hasConcept C87976508 @default.
- W3144720704 hasConceptScore W3144720704C112950240 @default.
- W3144720704 hasConceptScore W3144720704C149912024 @default.
- W3144720704 hasConceptScore W3144720704C159985019 @default.
- W3144720704 hasConceptScore W3144720704C18747287 @default.
- W3144720704 hasConceptScore W3144720704C191897082 @default.
- W3144720704 hasConceptScore W3144720704C192562407 @default.
- W3144720704 hasConceptScore W3144720704C27501479 @default.
- W3144720704 hasConceptScore W3144720704C2776878729 @default.
- W3144720704 hasConceptScore W3144720704C2780026712 @default.
- W3144720704 hasConceptScore W3144720704C37210646 @default.
- W3144720704 hasConceptScore W3144720704C5335593 @default.