Czasopismo | INŻYNIERIA MATERIAŁOWA | Rocznik 2013 - zeszyt 4

Microstructure and properties of 12Cr2MoWVTiB steel for power generation application

nr katalogowy: 79707

The low-alloyed, heat-resistant 12Cr2MoWVTiB (GY102) ferritic steel was invented by the Central Iron & Steel Research Institute (CISRI) and developed by Chinese boiler producers to be used mainly on the Chinese energy market [1]. The beginning of implementation of this steel in power plants boiler production goes back to the 50’s of the last century. Long-term service proved a good microstructural stability of this steel in elevated temperature. The steel was mostly applied as superheater/re-heater tubes in sub-critical boilers, where the temperature was lower than 560°C. The 12Cr2MoWVTiB steel was used in constructions of boilers until 2005. Since 2006 newly built power plants have operated at ultra-supercritical (USC) conditions, where outlet steam parameters have increased from 560°C to 600÷620°C [1]. First USC power plant units in China had a poor experience with 12Cr2MoWVTiB steel. It appeared that steam parameters were too high, therefore 12Cr2MoWVTiB steel was replaced by a new generation of austenitic steels. RAFAKO interest in 12Cr2MoWVTiB steel relates to its good properties at temperature of 500÷600°C. This range of temperature occurs in the membrane walls of Advanced Ultra Super Critical (A-USC) boilers units. In Europe, there is a limited selection of materials which have properties required for construction of membrane walls for USC and A-USC boiler units. In order to avoid problems with the T24 grade steel [2] which existed up to middle of 2011, it is necessary to perform detailed investigation into the microstructure of the steel applied to the boiler construction, in particular to fillet weld joints (tube-fin). This article presents the results of microstructural analyses of 12Cr2MoWVTiB steel which, to our knowledge, are firstly performed in Europe. This should be a reference to further investigation into the welded joints of 12Cr2MoWVTiB steel, wh[...]

Jeśli masz wykupiony/przyznany dostęp - zaloguj się. Skorzystaj z naszych propozycji zakupu!

Publikacja


e-Publikacja (format pdf) - nr 79707 "Microstructure and proper..." licencja: Osobista Produkt cyfrowy	10.00 zł

Zeszyt


INŻYNIERIA MATERIAŁOWA - e-zeszyt (pdf) 2013-4 licencja: Osobista Produkt cyfrowy	65.00 zł

Prenumerata

INŻYNIERIA MATERIAŁOWA - prenumerata cyfrowa
licencja: Osobista

Produkt cyfrowy
Nowość

402.00 zł

INŻYNIERIA MATERIAŁOWA - papierowa prenumerata roczna + wysyłka
licencja: Osobista

Szczegóły pakietu

Nazwa
INŻYNIERIA MATERIAŁOWA - papierowa prenumerata roczna	492.00 zł brutto 455.56 zł netto 36.44 zł VAT (stawka VAT 8%)
INŻYNIERIA MATERIAŁOWA - pakowanie i wysyłka	21.00 zł brutto 17.07 zł netto 3.93 zł VAT (stawka VAT 23%)

513.00 zł

INŻYNIERIA MATERIAŁOWA - PAKIET prenumerata PLUS
licencja: Osobista

Szczegóły pakietu

Nazwa
INŻYNIERIA MATERIAŁOWA - PAKIET prenumerata PLUS (Prenumerata papierowa + dostęp do portalu sigma-not.pl + e-prenumerata)	600.00 zł brutto 555.56 zł netto 44.44 zł VAT (stawka VAT 8%)

600.00 zł

Zeszyt

2013-4

Twój Koszyk

Publikacja

Zeszyt

Prenumerata

Zeszyt

Czasopisma