Bauteil aus duktilem metallischem Werkstoff

A ductile metallic material component, for deformation and/or load determination by acoustic emission analysis, contains added particles which are brittle at least at up to below 400 deg. C and which are preferably plastically deformable at below their melting temperature. Preferably, the ductile metallic material contains less than 2 vol.% MnS or SiO2 particles of 1-200 mu mean particle size, introduced by a powder metallurgical or fusion metallurgical method or incorporated by rolling, pressing or cladding. USE - Especially for acoustic emission analysis monitoring of deformation of or loads on heavy duty expensive components of weldable constructional steel or ductile light metal (e.g. aluminium) alloy during use or development. ADVANTAGE - The particles are brittle at the temperature of use of the component (e.g. room temperature) to improve the acoustic emission properties of the component, thus allowing detection of overstepping of the elastic limit and subsequent plastic deforma tion of ductile metallic materials which are not normally amenable to acoustic emission analysis.