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Título del libro: Materials Characterization
Título del capítulo: Mechanical properties of spray-atomized FeAl40 at.%Al alloys

Autores UNAM:
RAMIRO PEREZ CAMPOS;
Autores externos:

Idioma:
Inglés
Año de publicación:
2015
Palabras clave:

Alumina; Aluminum; Binary alloys; Fracture; Intermetallics; Iron alloys; Mechanical properties; Microalloying; Strain; Strain rate; Yield stress; Alumina particles; Alumina particulates; Base alloys; Comparative analysis; Fracture morphology; Intermetallic materials; Iron aluminides; Mechanochemicals; Aluminum alloys


Resumen:

Three different as-atomized alloys Fe-40 at.%Al, Fe-40Al + 0.1 at.%B, and Fe-40Al + 0.1 at.%B + 10 at.%Al 2 O 3 were deformed by compression under strain rates from 10 -4 to 10 -2 s -1, in order to study room-temperature mechanical properties. In the interval of 10 -4 to 10 -3 s -1 strain rates all three alloys diminished their yield stress but in the interval of 10 -3 to 10 -2 s -1, the FeAl40 at.% base alloy and the alloy doped with boron raise their yield stress. On the other hand, contrary to the last two alloys the FeAl40 at.% alloy doped with boron and reinforcement with alumina particulate shows a decrease in the yield stress in the interval of the 10 -3 to 10 -2 s -1. The yield stress is discussed in terms of the effect of the boron and alumina particles, and the fracture morphology behavior. The main objective of this research is to present a comparative analysis of the three intermetallic materials, evaluating their structure and mechanochemical properties. © Springer International Publishing Switzerland 2015.


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