Crystallography of low alloy iron martensites
Graduate
Martensitic transformations in Ag-Cd and Ag-Zn alloys
Graduate
The mechanical properties of martensite-ferrite structures.
Field-ion microscope investigations of fine structures in as-quenched and tempered ferrous martensite.
Ph.D.
Contribution à l'étude des interactions entre les variants de la martensite : application aux matériaux pseudoélastiques...
Non disponible
Distribution des interstitiels dans les alliages FE-C : cinétique isochrome au cours du vieillissement des martensites e...
aL'étude de la phase austénitique des alliages binaires FE-C par effet mossbauer à électrons de conversion (CEMS) révèle trois types d'environnement du fer qui mettent en évidence le caractère répulsif de l'intéraction entre atomes de carbone, et la mise en ordre de ce dernier dans la phase austénitique (FE#8C#1##X). Les spectres mossbauer des alli...
Distribution des intestitiels dans l'austénite et au cours du vieillissement et revenu des martensites fer-azote : forma...
La distribution des atomes d'azote dans les phases austénitiques et martensitiques est étudiée par spectrométrie Mössbauer, diffraction de rayons x et microscopie électronique. L'austénite retenue à l'issue d'une première trempe à la température ambiante révèle une répartition des atomes d'azote qui donne naissance à cinq composantes spectrales la ...
Strain hardening of structural metals with metastable structure under complex loading
Published in Strength of Materials
We investigated distinctive features of strain hardening under complex loading for quenched and low-tempered steels of ferritic-pearlitic (40KhN), martensitic (30Kh3NSMV), and maraging (Kh16N5D3) types and an Al-4Cu age-hardening alloy whose matrix phase is characterized by the metastable structure corresponding to supersaturated interstitial and s...
Tempering of Widmanstätten ferrite in cooling steel castings
Published in Metal Science and Heat Treatment
The formation of Widmanstätten ferrite is not the goal of a technological process. On the contrary, it should be eliminated in order to avoid a decrease in the ductility of the steel. A detailed study of this structural component, which has no practical use, is often assumed to be unnecessary. At the same time, coarse-grain Widmanstätten ferrite ma...
Increasing the heat resistance of nitrided low-carbon martensite steels
Published in Metal Science and Heat Treatment
Low-carbon martensite steels are characterized, by a high set of mechanical, technological, and operational properties. Alloying of these steels with active nitride-forming elements makes it possible to nitride them in order to obtain wear-resistant surface layers. However, the core of martensite steels loses strength in nitriding due to the develo...
