Abstract

Two-phase metal materials are an important family of materials. In our work a combined experimental and numerical (Finjite Element-FE) stress-strain analysis of two- phase alloys has been performed. Two-phase material model consists of a matrix and second phase inclusions. The matrices are materials with low yield strength, hardness and Young's modulus (ZnCuTi and SnPbSb alloy) and of a high ductility and toughness. Cylindrical inclusions were from low carbon and high speed steels with relatively high mechanical properties. Models have been plastic deformed with tensile loading and rolling. Specimens were investigated by X-ray diffraction, dimensional measurements and by measurements of microhardness. The plastic deformation of the matrices around cyndrical inserts was observed by X-ray and neutron radiography. The mechanical deformations were measured by profilometric analysis of neutron radiographs. The deformation processes were simulated with finite element analysis (FEA). The parameters observed and discussed are stresses and strains in metal matrix, the inserts and in the interface.

Keywords: Two-Phase Alloys, Rigid Inserts, Plastic Deformation, FEA, Neutron Radiography, Gamma Radiography

Source: Conference Proceedings of the 4th International Conference of the Slovenian Society for Nondestructive Testing, 24 - 25 April 1997, Ljubljana, Slovenia.
Pages:167 - 174

Publisher:
Slovenian Society for Nondestructive Testing, Faculty of Mechanical Engineering, Askerceva 6, SLO 1000 Ljubljana, Slovenia. Tel +386 61 177 12 03, Fax +386 61 218 567, Email: janez.grum@fs.uni-lj.si.