![Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5933/TOC-Subject-Sample-2021-Engineering-Tech.jpg"})
Abstract
The surface and internal deformation taking place during tensile straining of sintered copper compacts has been studied, with particular reference to the way in which this contributes to the mode of fracture. The porosity was varied in the range 0-13% and the effects of size and shape of pores were investigated, together with changes in grain size. Comparison is made with the deformation and fracture behaviour of copper containing non-metallic inclusions instead of pores. The results emphasize the importance of internal necking between pores, in controlling the microscopic nature of the fractures and thus the overall ductility, and the geometrical and material conditions which affect internal necking are discussed.
Notes
* Manuscript received 15 May 1963. Contribution to a Symposium on “Residual Porosity in Powder Metallurgy” to be held in London on 21 and 22 October 1963.