Determining porosity in sintered components. ASTM B276 (porosity in PM parts) often references E562.
The marketing brochure for the alloy claimed a volume fraction of oxide inclusions of less than 0.5%. astm e562-19e1
The material must be prepared as a representative, flat, polished, and appropriately etched metallographic sample. The plane of sectioning must be chosen to avoid bias relative to the material's anisotropy (e.g., transverse or longitudinal sections). Determining porosity in sintered components
The standard is highly regarded because it defines how to handle statistical uncertainty . It requires: Multiple Fields of View The material must be prepared as a representative,
is the current international standard for determining the volume fraction of identifiable phases or constituents in a material's microstructure using the systematic manual point count method . This 2019 edition (with editorial revision 1) provides a rigorous, statistically based framework for metallographers to quantify features like ferrite-to-austenite ratios in stainless steels, martensite content in dual-phase steels, and porosity in additive manufacturing. 1. Fundamental Methodology