Analysis of densification and strains in the uniaxial compression of sintered materials

✍ Scribed by Stefan Szczepanik

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 301 KB
• Volume: 34
• Category: Article
• ISSN: 0924-0136
• DOI: 10.1016/0924-0136(92)90129-g

✦ Synopsis

and Metallurgy, Mickiewicza 30, 30-059 Krakdw, Poland finite strain tensor, number of nodes, coordinates of a node after deformation, coordinates of a node before deformation, coordinates of the central node, radius of the centre of gravity of quadrilateral element, surface of the quadrilateral element, approximation functions of field of displacements, volume of the element before and after deformation, respectively, displacements of nodes determined in the experiment, Cartesian coordinates of a node before deformation, effective strain, logarithmic strain tensor, components of a strain tensor, Cartesian coordinates of a node after deformation, local Cartesian coordinates before deformation, relative density, initial relative density, logarithmic strain, strain rate Cylinder-uniaxial compression experiments have been carried out using sintered -iron porous metal specimens of various relative densities at different strain rate conditions. It was demonstrated that the densification curve for P/M preform can be determined from the relative initial density and the deformation. The analytical function relating the local density vs. deformation and initial density has been elaborated.