Tagasi

ISO 13947:2007

Metallic powders -- Test method for the determination of non-metallic inclusions in metal powders using a powder-forged specimen

Üldinfo
Kehtetu alates 25.11.2011
Tegevusala (ICS grupid)
77.160 Pulbermetallurgia
Direktiivid või määrused
puuduvad
Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
25.11.2011
Põhitekst
Põhitekst
ISO 13947:2007 specifies a metallographic method for determining the non-metallic inclusion level in metal powders using a powder-forged specimen. The test method covers repress powder-forged test specimens in which there has been minimal lateral flow (< 1 %). The core region of the powder-forged test specimen contains no porosity detectable at 100X magnification. This test method can also be used to determine the non-metallic inclusion content of powder-forged steel parts. However, in parts where there has been a significant amount of material flow, the near-neighbour separation distance needs to be changed, or the inclusion sizes agreed between the parties need to be adjusted. This test method is not suitable for determining the non-metallic inclusion level of parts that have been forged such that the core region contains porosity. At the magnification used for this test method, residual porosity is hard to distinguish from inclusions. Too much residual porosity makes a meaningful assessment of the inclusion population impossible.
*
*
*
PDF
43,97 € koos KM-ga
Paber
43,97 € koos KM-ga
Standardi monitooring