| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Brink, Bastian
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2017The ternary Fe-C-N system: Homogeneous distributions of nitrogen and carboncitations
- 2017The ternary Fe-C-N system: Homogeneous distributions of nitrogen and carboncitations
- 2017On the elusive crystal structure of expanded austenitecitations
- 2017Effect of carbon on interstitial ordering and magnetic properties of ε-Fe2(N,C)1-zcitations
- 2017Effect of carbon on interstitial ordering and magnetic properties of ε-Fe2(N,C) 1-zcitations
- 2016Composition-dependent variation of magnetic properties and interstitial ordering in homogeneous expanded austenitecitations
- 2016On the Carbon Solubility in Expanded Austenite and Formation of Hägg Carbide in AISI 316 Stainless Steelcitations
- 2016On the Carbon Solubility in Expanded Austenite and Formation of Hägg Carbide in AISI 316 Stainless Steelcitations
- 2014Thermal expansion and phase transformations of nitrogen-expanded austenite studied with in situ synchrotron X-ray diffractioncitations
- 2014Thermal expansion and phase transformations of nitrogen-expanded austenite studied with in situ synchrotron X-ray diffractioncitations
Places of action
| Organizations | Location | People |
|---|
article
Thermal expansion and phase transformations of nitrogen-expanded austenite studied with in situ synchrotron X-ray diffraction
Abstract
Nitrogen-expanded austenite, _N, with high and low nitrogen contents was produced from AISI 316 grade stainless steel powder by gaseous nitriding in ammonia/hydrogen gas mixtures. In situ synchrotron X-ray diffraction was applied to investigate the thermal expansion and thermal stability of expanded austenite in the temperature range 385–920 K. Evaluation of the diffractograms of the sample with a high nitrogen content, corresponding to an occupancy of the interstitial lattice of 56%, with Rietveld refinement yielded a best convergence after including the stacking fault probability as a fitting parameter.The stacking fault density is constant for temperatures up to 680 K, whereafter it decreases to nil. Surprisingly, a transition phase with composition M4N (M = Fe, Cr, Ni, Mo) appears for temperatures above 770 K. The linear coefficient of thermal expansion depends on the nitrogen content and is lowest for the sample with a high level of nitrogen.