The evolution of Y distribution during the processing route of mechanically alloyed iron studied by means of atom probe tomography
-
G. Ressel
, S. Primig and H. Leitner
Abstract
Oxide dispersion strengthening of steels has become quite popular during the last few years. Especially because of their thermal stability, Y–O clusters can improve high temperature properties such as strength, hardness and creep strength. Oxide dispersion strengthened steel is a promising candidate for applications mainly in fast breeder reactors. In order to establish a better understanding of the strengthening mechanism, this study focuses on an evolution of the Y distribution in mechanically alloyed iron during the process route, employing atom probe tomography. After mechanical alloying, Y seems to be distributed in extremely fine clusters and partly dissolved in the matrix. Enrichment of alloying elements in the Y–O clusters in the mechanically alloyed state is evidence for diffusion processes taking place during mechanical alloying. During hot isostatic pressing at elevated temperatures, dissolved Y atoms accumulate and build distinct clusters. These clusters stay stable even after annealing at 600°C for 8 hours.
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© 2013, Carl Hanser Verlag, München
Articles in the same Issue
- Contents
- Contents
- Original Contributions
- Solubility of nitrogen in ferrite; the Fe–N phase diagram
- The Li–C phase equilibria
- Experimental study of phase equilibria in the “SnO”–SiO2–“FeO” system at silica saturation, and fixed oxygen partial pressures at 1473 K
- The evolution of Y distribution during the processing route of mechanically alloyed iron studied by means of atom probe tomography
- Oscillative surface morphology in peritectic NiAl using phase-field modeling
- Microstructural characterisation of oxide layer developed by sulphuric anodisation on 2017A alloys
- Wear and corrosion behaviour of AISI 310 and AISI 316 stainless steels in synthetic mine water
- Superplasticity of coarse-grained Ti-13V-11Cr-3Al alloy
- Research on the creep fracture mechanism of FGH95 Ni-based superalloy
- Hot pressing of Al2O3 matrix ceramic materials improved by diopside additive
- Tungsten heavy alloy as a filler metal for repair welding of dies for high pressure die casting
- A one-pot synthesis of Ag/α-Fe2O3 nanoplates with gelatin and their photocatalytic activity
- Short Communications
- Effects of coating solution concentration on the interlaminar shear strength of carbon fiber/epoxy/nano-CaCO3 composites
- People
- Dr.-Ing. Christa Blank
- DGM News
- DGM News
Articles in the same Issue
- Contents
- Contents
- Original Contributions
- Solubility of nitrogen in ferrite; the Fe–N phase diagram
- The Li–C phase equilibria
- Experimental study of phase equilibria in the “SnO”–SiO2–“FeO” system at silica saturation, and fixed oxygen partial pressures at 1473 K
- The evolution of Y distribution during the processing route of mechanically alloyed iron studied by means of atom probe tomography
- Oscillative surface morphology in peritectic NiAl using phase-field modeling
- Microstructural characterisation of oxide layer developed by sulphuric anodisation on 2017A alloys
- Wear and corrosion behaviour of AISI 310 and AISI 316 stainless steels in synthetic mine water
- Superplasticity of coarse-grained Ti-13V-11Cr-3Al alloy
- Research on the creep fracture mechanism of FGH95 Ni-based superalloy
- Hot pressing of Al2O3 matrix ceramic materials improved by diopside additive
- Tungsten heavy alloy as a filler metal for repair welding of dies for high pressure die casting
- A one-pot synthesis of Ag/α-Fe2O3 nanoplates with gelatin and their photocatalytic activity
- Short Communications
- Effects of coating solution concentration on the interlaminar shear strength of carbon fiber/epoxy/nano-CaCO3 composites
- People
- Dr.-Ing. Christa Blank
- DGM News
- DGM News