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Micro-mechanical damage in tool steels analyzed by acoustic emission technique
Picas Anfruns, Ingrid; Martínez González, Eva; Casellas Padró, Daniel; Romeu Garbí, Jordi
Universitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica; Universitat Politècnica de Catalunya. LEAM - Laboratori d'Enginyeria Acústica i Mecànica
The carbides in tool steels act as hard particles and dictate the wear resistance. The origin of failure of these steels is mostly related with the carbide cracking, as a nucleation site of final cracks. This paper shows the acoustic emission (AE) signals related with the nucleation (carbide cracking) and the crack growth (in the metallic matrix) during a monotonic bending test of a tool steel obtained by ingot metallurgy routes (DIN 1.2379). The paper presents a relationship between the frequency spectrum of AE signals obtained and the microscopic images during the test.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria mecànica
Acer
Micromecànica
info:eu-repo/semantics/publishedVersion
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