Next Article in Journal
Calcined Mussel Shell Powder (CMSP) via Modification with Surfactants: Application for Antistatic Oil-Removal
Next Article in Special Issue
In Situ Stress Tensor Determination during Phase Transformation of a Metal Matrix Composite by High-Energy X-ray Diffraction
Previous Article in Journal
Preparation of a Highly Porous Carbon Material Based on Quinoa Husk and Its Application for Removal of Dyes by Adsorption
Previous Article in Special Issue
Influence of the Non-Schmid Effects on the Ductility Limit of Polycrystalline Sheet Metals
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Materials 2018, 11(8), 1409; https://doi.org/10.3390/ma11081409

Contribution of Local Analysis Techniques for the Characterization of Iron and Alloying Elements in Nitrides: Consequences on the Precipitation Process in Fe–Si and Fe–Cr Nitrided Alloys

1
Institut Jean Lamour, UMR 7198, CNRS, Université de Lorraine, Campus ARTEM, 2 allée André Guinier, F-54011 Nancy CEDEX, France
2
LABoratory of EXcellence Design of Alloy Metals for low-mAss Structure (LabEx DAMAS), Université de Lorraine, Nancy 54011, France
3
SIMAP, CNRS, Grenoble INP, University of Grenoble Alpes, F-38000 Grenoble, France
4
UNIROUEN, INSA Rouen, Normandie Université, CNRS, Groupe de Physique des Matériaux F-76000 Rouen, France
5
Institut de Chimie de la matière condensée de Bordeaux, University of Bordeaux, UMR5026, F-33600 Pessac, France
6
Matériaux Ingénierie et Science, UMR CNRS 5510, INSA Lyon, University of Lyon, Bât. Saint-Exupéry, 25 Avenue J. Capelle, F-69621 Villeurbanne CEDEX, France
*
Author to whom correspondence should be addressed.
Received: 29 July 2018 / Revised: 5 August 2018 / Accepted: 7 August 2018 / Published: 11 August 2018
(This article belongs to the Special Issue Design of Alloy Metals for Low-Mass Structures)
View Full-Text   |   Download PDF [7689 KB, uploaded 11 August 2018]   |  

Abstract

Atom Probe Tomography (APT), Transmission Electron Microscopy (TEM), and 3D mechanical calculations in complex geometry and anisotropic strain fields were employed to study the role of minor elements in the precipitation process of silicon and chromium nitrides in nitrided Fe–Si and Fe–Cr alloys, respectively. In nitrided Fe–Si alloys, an original sequence of Si3N4 precipitation was highlighted. Al–N clusters form first and act as nucleation sites for amorphous Si3N4 nitrides. This novel example of particle-simulated nucleation opens a new way to control Si3N4 precipitation in Fe–Si alloys. In nitrided Fe–Cr alloys, both the presence of iron in chromium nitrides and excess nitrogen in the ferritic matrix are unquestionably proved. Only a certain part of the so-called excess nitrogen is shown to be explained by the elastic accommodation of the misfit between nitride and the ferritic matrix. The presence of immobile excess nitrogen trapped at interfaces can be highly suspected. View Full-Text
Keywords: excess nitrogen; clusters precipitation; Fe–Si and Fe–Cr nitrided alloys; APT and TEM characterization excess nitrogen; clusters precipitation; Fe–Si and Fe–Cr nitrided alloys; APT and TEM characterization
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Van Landeghem, H.P.; Danoix, R.; Gouné, M.; Bordère, S.; Martinavičius, A.; Jessner, P.; Epicier, T.; Hannoyer, B.; Danoix, F.; Redjaïmia, A. Contribution of Local Analysis Techniques for the Characterization of Iron and Alloying Elements in Nitrides: Consequences on the Precipitation Process in Fe–Si and Fe–Cr Nitrided Alloys. Materials 2018, 11, 1409.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top