In situ laser irradiation of WC-Co hard metals inside an SEM. Part 2. Behaviour of the cobalt binder.

Müller, H.H.MüllerWetzig, K.K.WetzigPimenov, S.M.S.M.PimenovChapliev, N.I.N.I.ChaplievKonov, V.I.V.I.KonovProchorov, A.M.A.M.ProchorovSchultrich, B.B.Schultrich2022-03-032022-03-031990https://publica.fraunhofer.de/handle/publica/17866210.1007/BF00581105Cemented carbides with higher binder contents were irradiated with a CO2-pulse laser within a SEM to investigate the structural development in more detail. The decisive medium is the melting binder which dissolves the refractory carbide phase. In this way a superficial layer of an oversaturated solid solution with highly dispersed secondary carbides is produced. At higher pulse numbers a periodic structure is engraved in the surface by local evaporation as result of a self-amplifying resonance phenomenon.encobalthardmetalHartmetallKobaltlaser surface treatmentLaseroberflächenbehandlungperiodic structureperiodische StrukturREMSEMtungsten carbideWolframkarbid667621671620In situ laser irradiation of WC-Co hard metals inside an SEM. Part 2. Behaviour of the cobalt binder.In-situ Laserbestrahlung von WC-Co-Hartmetallen in einem Rasterelektronenmikroskop. Tl.2. Verhalten des Kobaltbindersjournal article