- Tytuł:
- Surfacing 24Cr-5Ni-2.5Mo Duplex Steel Castings by TIG
- Autorzy:
-
Kasinska, J.
Skrzypczyk, A.
Kalandyk, B. - Powiązania:
- https://bibliotekanauki.pl/articles/379970.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
duplex cast steel
surfacing
Tungsten Inert Gas method
solution heat treatment
microstructure change
staliwo duplex
proces napawania
metoda TIG
obróbka cieplna - Opis:
- This article discusses the influence of Tungsten Inert Gas (TIG) surfacing of duplex cast steel on its hardness and structure. The samples of 24Cr-5Ni-2.5Mo ferritic-austenitic cast steel were subjected to single-overlay processes with the use of solid wire having the chemical composition similar to that of the duplex cast steel. As a result of the surfacing, the welds were obtained that had no welding imperfections with a smooth transition to the base material. In the test without the heat treatment, directly below the fusion line, we observe a ferrite band with a width of approximately 200 μm without visible austenite areas. Some of the samples were then solution treated (1060°C). Both variants, without and after solution heat treatment, were subjected to testing. Significant changes in the microstructure of the joint were observed after the heat treatment process (heat affected zone and weld microstructure changes). In both areas, an increase in the austenite volume fraction after solution heat treatment was observed. Changes in the microhardness of the ferrite in the HAZ area directly below the fusion line were also observed.
- Źródło:
-
Archives of Foundry Engineering; 2018, 18, 2; 15-20
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł