Journal ArticleDOI
Quantitative Analysis of Intermetallic Phase in 850°C Aging 2205 Duplex Stainless Steel
TLDR
In this article, the precipitates in 850°C aging 2205 Duplex stainless steel were extracted by the method of carbon extraction replicas, which makes precipitates disperse uniformly and the contrast between precipitates and matrix distinct.Abstract:
The precipitates in 850°C aging 2205 Duplex stainless steel were extracted by the method of carbon extraction replicas. The method makes precipitates disperse uniformly and the contrast between precipitates and matrix distinct. TEM(Transmission Electron Microscope), EDS(Energy Dispersive Spectrometer) and SEM (Scanning Electron Microscope) were applied for the observation of microstructure. The SEM micrographs were used for intermetallic size statistic, which revealed that the sizes of intermetallic increased with aging time.read more
Citations
More filters
Journal ArticleDOI
Revisiting the applications of the extraction replica sample preparation technique for analysis of precipitates in engineering alloys
TL;DR: In this paper , a variety of precipitates from common engineering alloys including carbides, nitrides, oxides and various intermetallic phases in steels, nickel-, zirconium-, aluminium-, copper-, and magnesium-based alloys, can be extracted and the techniques are summarized in this work.
References
More filters
Journal ArticleDOI
Effect of intermetallic precipitations on the properties of duplex stainless steel
TL;DR: The corrosion resistant group of ferritic austenitic duplex steels showed a rather complex precipitation and transformation behavior that affects the mechanical and corrosive properties as discussed by the authors, and most critical concerning the change of properties are the precipitations in the temperature field of 650-950°C.
Journal ArticleDOI
Effects of solution treatment and continuous cooling on σ-phase precipitation in a 2205 duplex stainless steel
T.H Chen,Jer-Ren Yang +1 more
TL;DR: In this paper, a commercial 2205 duplex stainless steel with three different solution treatments (at 1020, 1080 and 1200°C for 3 min) followed by continuous cooling at four respective cooling rates (1, 0.5,0.25 and 0.1°C s −1 ) has been investigated by means of optical metallography, transmission electron microscopy, electron probe microanalysis, X-ray diffraction and differential thermal analysis.
Journal ArticleDOI
Sigma phase precipitation in duplex stainless steel 2205
Henrik Sieurin,Rolf Sandström +1 more
TL;DR: Sigma phase precipitation is known to embrittle duplex stainless steel as mentioned in this paper, therefore, heat treatment and welding must be performed carefully. Nucleation and diffusional growth of sigma phase in th...
Journal ArticleDOI
Qualitative and quantitative analysis of σ and χ phases in 2205 duplex stainless steel
Joanna Michalska,Maria Sozańska +1 more
TL;DR: In this paper, the effect of isothermal treatment at 750 °C on the microstructure of duplex stainless steels has been investigated, and the qualitative and quantitative analysis of precipitations nucleated after aging was carried out, where two kinds of Cr- and Mo-enriched intermetallic phases, σ and χ, were found to precipitate preferentially at ferrite-austenite interface and within the ferrite phase.
Journal ArticleDOI
Investigations on coarsening of MX and M23C6 precipitates in 12% Cr creep resistant steels assisted by computational thermodynamics
TL;DR: In this article, the evolution of precipitates at different creep times was determined experimentally using scanning transmission electron microscopy (STEM). Phase equilibria were calculated with Thermocalc and simulations of coarsening of precipitate were carried out with Dictra.