Influence of milling time on the processing of Fe–TiCN composites

Fe–TiCN composites were prepared according to conventional powder metallurgical techniques. Composite powders of iron and titanium carbonitride have been prepared by a high-energy milling route. A proper characterisation of powders is necessary and it was carried out by different means: scanning ele...

Full description

Saved in:
Bibliographic Details
Published inMaterials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 430; no. 1; pp. 59 - 63
Main Authors Gómez, B., Gordo, E., Torralba, J.M.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 25.08.2006
Elsevier
Subjects
Applied sciences
Composites
Composition
Dispersion hardening metals
Exact sciences and technology
High-energy milling
Metals. Metallurgy
Powder metallurgy. Composite materials
Production techniques
Ti(CN)
Composites
Composition
High-energy milling
Ti(CN)
Scanning electron microscopy
Particle size
Vickers hardness
Chemical analysis
Metal matrix composite
Processing time
Titanium Carbides nitrides
Iron
Powder metallurgy
Controlled atmosphere
X ray diffraction
Composite material
Dispersion strengthened metal
Sintering
Chemical composition
Microstructure
Online AccessGet full text

Cover

More Information
Summary:Fe–TiCN composites were prepared according to conventional powder metallurgical techniques. Composite powders of iron and titanium carbonitride have been prepared by a high-energy milling route. A proper characterisation of powders is necessary and it was carried out by different means: scanning electron microscopy (SEM) to study the particle morphology and microstructure; X-ray diffraction (XRD) to find possible transformations during the milling; chemical analyses to determine the percentage of oxygen, carbon and nitrogen; and particle size distribution. The sintering process was carried out at different temperatures under N 2–10H 2–0.1CH 4 atmosphere. The density, chemical composition and Vickers hardness (HV30) was measured, and their microstructures were observed by using scanning electron microscopy. As a result of the study it is clear that the higher the C/N ratio, higher hardness are related with the microstructure; an increase in the C/N ratio, the hard phase is finer and more disperse throughout the matrix.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2006.05.051