[article]
| Titre : |
Splitting phenomenon in the precipitation evolution in an Fe–Ni–Al–Ti–Cr stainless steel |
| Type de document : |
texte imprimé |
| Auteurs : |
H. Leitner, Auteur ; M. Schober, Auteur ; R. Schnitzer, Auteur |
| Année de publication : |
2011 |
| Article en page(s) : |
pp. 1261–1269 |
| Note générale : |
Métallurgie |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Maraging steel Atom probe tomography Precipitates |
| Résumé : |
The evolution of precipitation and mechanical properties of an Fe–Ni–Al–Ti–Cr stainless steel was studied during ageing at 525 °C. Atom probe tomography and transmission electron microscopy were applied to follow the microstructural evolution. An initial hardening reaction, which is remarkable in terms of extent, is reported to be caused by the formation of complex multi-component clusters. They are composed mainly of Ni, Al and Ti. After ageing to peak hardness (3 h), splitting of these clusters into spherical and elongated particles was observed. Based on the chemical composition, the spherical precipitates were identified to be of type NiAl B2, and the elongated particles were associated with the η-phase (Ni3(Ti, Al)). Βoth types of precipitates contribute to the strength of the material. |
| DEWEY : |
669 |
| ISSN : |
1359-6454 |
| En ligne : |
http://www.sciencedirect.com/science/article/pii/S1359645409007241 |
in Acta materialia > Vol. 58 N° 4 (Fevrier 2010) . - pp. 1261–1269
[article] Splitting phenomenon in the precipitation evolution in an Fe–Ni–Al–Ti–Cr stainless steel [texte imprimé] / H. Leitner, Auteur ; M. Schober, Auteur ; R. Schnitzer, Auteur . - 2011 . - pp. 1261–1269. Métallurgie Langues : Anglais ( eng) in Acta materialia > Vol. 58 N° 4 (Fevrier 2010) . - pp. 1261–1269
| Mots-clés : |
Maraging steel Atom probe tomography Precipitates |
| Résumé : |
The evolution of precipitation and mechanical properties of an Fe–Ni–Al–Ti–Cr stainless steel was studied during ageing at 525 °C. Atom probe tomography and transmission electron microscopy were applied to follow the microstructural evolution. An initial hardening reaction, which is remarkable in terms of extent, is reported to be caused by the formation of complex multi-component clusters. They are composed mainly of Ni, Al and Ti. After ageing to peak hardness (3 h), splitting of these clusters into spherical and elongated particles was observed. Based on the chemical composition, the spherical precipitates were identified to be of type NiAl B2, and the elongated particles were associated with the η-phase (Ni3(Ti, Al)). Βoth types of precipitates contribute to the strength of the material. |
| DEWEY : |
669 |
| ISSN : |
1359-6454 |
| En ligne : |
http://www.sciencedirect.com/science/article/pii/S1359645409007241 |
|
Ajouter le résultat dans votre panier Faire une suggestion Affiner la rechercheOn the applicability of high strength self-tapping aluminium bolts in magnesium nut materials for automotive applications in Materials and corrosion, Vol. 61 N° 5 (Mai 2010)
