Abstract In order to reduce defects such as pores, gold phases and cracks in powder metallurgy, scholars have studied the densification process of metallurgy. Based on study metallurgy deformation mechanism, this paper classifies summarizes numerical simulation theory methods. At present, is carried out mainly macroscopic, mesoscopic microscopic directions. Macro scale an application finite ele...

The results of a metallographic study of grey cast iron water pipes are reported. These pipes had been installed between 1885 and 1973 in eight different water systems. Each pipe had been extracted during scheduled maintenance or failure repairs to provide data for a larger study to produce a methodology for determining the residual life of grey cast iron pipes. This metallographic study was co...