Title :

In situ age hardening and grain refinement in as-sprayed Al-Sc binary alloy deposits

Author(s) :

Raghukiran, Nadimpalli [Auteur]
Vellore Institute of Technology [VIT]
Indian Institute of Technology Madras [IIT Madras]
Sujith, Ravindran [Auteur]
Indian Institute of Technology Madras [IIT Madras]
Birla Institute of Technology and Science [BITS Pilani]
Agrawal, Harshal [Auteur]
Indian Institute of Technology Madras [IIT Madras]
Institut für Materialwissenschaft
Shabadi, Rajashekhara [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Kumar, Ravi [Auteur]
Indian Institute of Technology Madras [IIT Madras]

Journal title :

Journal of Alloys and Compounds

Volume number :

735

Pages :

1596-1602

Publication date :

2018-02-25

HAL domain(s) :

Chimie/Matériaux
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]

English abstract : [en]

In situ age hardening phenomenon observed in as-sprayed Al-Sc binary alloys is reported. This, along with substantial grain refinement in the as-sprayed alloys exhibited hardness in the range of 605 MPa (Al-0.3 wt% Sc) to ...
Show more >In situ age hardening phenomenon observed in as-sprayed Al-Sc binary alloys is reported. This, along with substantial grain refinement in the as-sprayed alloys exhibited hardness in the range of 605 MPa (Al-0.3 wt% Sc) to 923 MPa (Al-0.8 wt% Sc) that are comparable to the optimum hardness values typically obtained by age hardening in similar as-cast alloys. Transmission electron microscopy of the spray deposits revealed densely spaced Al3Sc precipitates of about 10 nm suggesting in-situ age hardening of these alloys during spray forming. This behavior is attributed to the inherent heating cycle associated with the spray forming process and the rapid kinetics of Al3Sc precipitation.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
ENSCL
CNRS
INRA

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Métallurgie Physique et Génie des Matériaux

Submission date :

2019-05-17T09:24:53Z
2023-11-15T09:34:31Z