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| rdf:type
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| Description
| - The construction of new power plants and modernization of existing plants, which are mostly at the end of their service life, increasingly require the use of new construction materials. In this sector modified martensitic 9-12% Cr steels such as type P/T92 and low-alloy steels derived from modified steel 2.5Cr1Mo (ASTM marked P/T23) are considered as promising. In the construction of power units so-called heterogeneous joints, which most often consist of a combination of low-alloyed materials and highly-alloyed ones, will then be avoided. These weld joints are often the weak link in the construction. Knowledge of the behavior of creep-resistant welded joints is very important for the subsequent evaluation of the life of the units. This work deals with the degradation of heterogeneous welded joints of steel T23 - T92 and 15CH1M1F - P91, using commercially produced weld materials Thermanit MTS 616 (highly-alloyed), Union I P23; ThermanitP23, Böhler P23-IG and Thermanit (FOX) P23 (low-alloyed). In the heterogeneous welds examined slight strength loss of the base material occured during isothermal heat exposure and extension of the diffusion active zones, i.e. Carbon Depleted Zone (CDZ) and Carbon Enriched Zone (CEZ), were observed. These degradation processes caused structural instability of heterogeneous welds. On the basis of experimental tests carried out so far it seems a better option is to use low-alloyed weld material rather than highly-alloyed ones. Because of the service conditions of high load, it is necessary to verify the properties of welds and to perform other laboratory analyses.
- The construction of new power plants and modernization of existing plants, which are mostly at the end of their service life, increasingly require the use of new construction materials. In this sector modified martensitic 9-12% Cr steels such as type P/T92 and low-alloy steels derived from modified steel 2.5Cr1Mo (ASTM marked P/T23) are considered as promising. In the construction of power units so-called heterogeneous joints, which most often consist of a combination of low-alloyed materials and highly-alloyed ones, will then be avoided. These weld joints are often the weak link in the construction. Knowledge of the behavior of creep-resistant welded joints is very important for the subsequent evaluation of the life of the units. This work deals with the degradation of heterogeneous welded joints of steel T23 - T92 and 15CH1M1F - P91, using commercially produced weld materials Thermanit MTS 616 (highly-alloyed), Union I P23; ThermanitP23, Böhler P23-IG and Thermanit (FOX) P23 (low-alloyed). In the heterogeneous welds examined slight strength loss of the base material occured during isothermal heat exposure and extension of the diffusion active zones, i.e. Carbon Depleted Zone (CDZ) and Carbon Enriched Zone (CEZ), were observed. These degradation processes caused structural instability of heterogeneous welds. On the basis of experimental tests carried out so far it seems a better option is to use low-alloyed weld material rather than highly-alloyed ones. Because of the service conditions of high load, it is necessary to verify the properties of welds and to perform other laboratory analyses. (en)
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| Title
| - Heterogeneous welded joints (T23-T92; 15CH1M1F-P91)
- Heterogeneous welded joints (T23-T92; 15CH1M1F-P91) (en)
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| skos:prefLabel
| - Heterogeneous welded joints (T23-T92; 15CH1M1F-P91)
- Heterogeneous welded joints (T23-T92; 15CH1M1F-P91) (en)
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| skos:notation
| - RIV/68407700:21220/14:00219215!RIV15-MSM-21220___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21220/14:00219215
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - High-parametric steel; creep-resistant steel; T23; T92; P91; 15CH1M1F; weld joint; ferritic steel; bainitic steel; martensitic steel; HV10; HV0,1; structural stability (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - Přínos metalografie pro řešení výrobních problémů 2014 - Sborník přednášek
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Janovec, Jiří
- Ducháček, Petr
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| http://linked.open...vavai/riv/typAkce
| |
| http://linked.open.../riv/zahajeniAkce
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| - České vysoké učení technické v Praze. Fakulta strojní
|
| https://schema.org/isbn
| |
| http://localhost/t...ganizacniJednotka
| |
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