Publication

Mechanical spectroscopy of decagonal Al-Cu-Fe-Cr quasicrystalline coatings

Related publications (33)

Relaxation time shift of Cobalt related internal friction peak in WC-Co cemented carbide

Daniele Mari, Lucas Eric Jacques Degeneve, Samy Adjam

Cemented carbides are widely used in the cutting tools industry for their mechanical properties. They are composite materials made of hard tungsten carbide grains jointed together by a ductile cobalt binder. Due to the extreme conditions of use of the tool ...

ELSEVIER SCIENCE SA2022

Optimization of composition and structure of cemented carbide cutting tools

Samy Adjam

WC-Co cemented carbides are composites, which combine a hard phase consisting of WC grains and a metallic ductile phase as a binder. Their excellent mechanical properties, combining high hardness, toughness and refractory properties, make them excellent ma ...

EPFL2021

In situ X-ray diffraction and the internal friction study of the binary yellow 18-carat gold alloy

Daniele Mari

Phase transitions in AuCu alloy are investigated using in situ temperature XRD and mechanical spectroscopy. The measurements are carried out from room temperature up to 973 K starting from the ordered phase AuCuI. Using a temperature ramp rate of 1 K/min, ...

ELSEVIER SCIENCE SA2019

Évolution microstructurale et propriétés mécaniques d'un alliage Co-Ni-Cr

Raffaele Cosimati

This study concerns the evolution of the thermomechanical properties of new high-performance materials. In particular, we focus on the relationship between the microstructure and the mechanical properties of a superalloy based on Co-Ni-Cr. Superalloys are ...

EPFL2016

Secondary hardening in Co-Ni-Cr super-alloy investigated by Mechanical Spectroscopy

Daniele Mari, Raffaele Cosimati

The effects of thermal treatments on a Co-Ni-Cr super-alloy in the temperature range from 250 degrees C to 900 degrees C, resulting in secondary hardening, have been studied by Mechanical Spectroscopy. The simultaneous evolution of the internal friction sp ...

Elsevier2016

GRAIN BOUNDARY RELAXATION IN Bi-CRYSTALS: MECHANICAL SPECTROSCOPY AND MOLECULAR DYNAMICS SIMULATIONS

Daniele Mari, Robert Schaller, Iva Tkalcec Vâju

Different Au-Ag-Cu samples have been studied by mechanical spectroscopy. Both polycrystals and bi-crystals show a relaxation peak at 800 K, accompanied by an elastic modulus change. Since this peak is absent in single crystals it is related to the presence ...

Polska Akad Nauk, Polish Acad Sciences, Inst Metall & Mater Sci Pas2015

Applications Of Mechanical Spectroscopy To Industrial Materials

Robert Schaller

The paper is a review of original results, which were obtained by mechanical spectroscopy in the development of industrial materials, such as grey cast iron (damping capacity), aluminum alloys (recrystallization), nickel alloys (grain boundary embrittlemen ...

Polska Akad Nauk, Polish Acad Sciences, Inst Metall & Mater Sci Pas2015

MECHANICAL SPECTROSCOPY OF ORDERED BINARY Au-Cu

Daniele Mari, Robert Schaller, Iva Tkalcec Vâju

We have studied a binary Au-Cu single crystal by mechanical spectroscopy. Upon very slow cooling from high temperatures, additional relaxation peaks arise at lower frequencies in isothermal spectra after the disappearing of the Zener peak below 665 K due t ...

Polska Akad Nauk, Polish Acad Sciences, Inst Metall & Mater Sci Pas2015

High/room temperature mechanical properties of 3Y-TZP/CNTs composites

Robert Schaller, Mehdi Mazaheri

Spark Plasma Sintering (SPS) method was practiced, in the current investigation, to obtain fully dense materials with an excellent dispersion of MWCNTs (Multi-walled Carbon Nanotubes) within the matrix. Scanning and transmission electron microscopy microgr ...

Elsevier Sci Ltd2014

Cryogenically cooled octupole ion trap for spectroscopy of biomolecular ions

Vladimir Kopysov

We present here the design of a linear octupole ion trap, suitable for collisional cryogenic cooling and spectroscopy of large ions. The performance of this trap has been assessed using ultraviolet (UV) photofragmentation spectroscopy of protonated dipepti ...

Amer Inst Physics2014

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