Metallic powders. Test method for the determination of non-metallic inclusions in metal powders using a powder-forged specimen Ingestion-build-89079 gas turbine plants

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Metallic powders. Test method for the determination of non-metallic inclusions in metal powders using a powder-forged specimen Ingestion-build-89079 gas turbine plants1 Scope This International Standard 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 100 magnification. This test method can also be used to determine the non metallic