Title :

Alumina-Forming Austenitic (AFA) steels and aluminium-based coating on 15-15 Ti steel to limit mechanical damage in presence of liquid lead-bismuth eutectic and liquid lead

Author(s) :

Proriol Serre, Ingrid [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Ponsot, Ines [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Vogt, Jean-Bernard [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207

Scientific editor(s) :

Pantelakis, S.
Lampeas, G.
Tserpes, K.

Conference title :

6th International Virtual Conference of Engineering Against Failure

City :

En visio - Grèce

Country :

Grèce

Start date of the conference :

2021-06-23

Journal title :

MATEC Web of Conferences

Abbreviated title :

MATEC Web Conf.

Publisher :

EDP Sciences

Publication date :

2021

ISSN :

2261-236X

HAL domain(s) :

Chimie/Matériaux

English abstract : [en]

To limit corrosion of the steels in contact with liquid metal (Pb or Pb-Bi), both different solutions based on the presence of alumina at the surface of the steels were selected: 2 Alumina-Forming Austenitic (AFA) steels ...
Show more >To limit corrosion of the steels in contact with liquid metal (Pb or Pb-Bi), both different solutions based on the presence of alumina at the surface of the steels were selected: 2 Alumina-Forming Austenitic (AFA) steels and the 15-15 Ti steel coated by alumina layer. These technical options to mitigate corrosion by lead or Pb-Bi were investigated in terms of mechanical performances in liquid lead or liquid Pb-Bi. So the liquid metal embrittlement (LME) sensitivity of the different materials selected for their good corrosion resistance was evaluated by tensile tests or small punch tests carried out in presence of liquid metal, and by post-mortem analysis of the cracking and of the fracture surfaces. No LME sensitivity for the tested conditions has been observed for the Al2O3 coated 15-15Ti steel and for the two AFA steels (16Ni-14Cr-2.5Al-2.5Mn-1Nb), one without and one with 2% wt.% W and 0.02% wt.% Y in their as received state. But a 650 °C thermal aging promotes modifications of the microstructure specially precipitations and then LME sensitivity of the AFA steels, according the nature of the precipitation.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

European Project :

GEneration iv Materials MAturity

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Métallurgie Physique et Génie des Matériaux

Submission date :

2021-11-16T09:43:19Z
2021-11-19T10:16:59Z