Microporosity is the major processing defect in pressure die cast AZ91 magnesium alloy.
There is a big difference in the arrangement of pores in different regions of the castings. The present
work explains the pore arrangement in pore bands and other regions. Quantification and
characterization of pores in pore bands is expected to be useful to understand the process-propertymicrostructure
correlation. A computational microstructural (image) analyzing technique has been
developed by a programming language to quantify and analyze the micropores in pore bands. The
pore band regions and the rest were separated and quantified. In addition, image analyzing
technique was used to measure the clustering tendency of porosity in pore bands and it was
compared with other regions.
Thermal-wave image processing for characterization of subsurface flaws in materials
