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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.
CitationPicas, I. [et al.]. Micro-mechanical damage in tool steels analyzed by acoustic emission technique. "Journal of acoustic emission", 30 Desembre 2012, vol. 30, p. 1-8.
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