Tag Archives | Porosity in Metals

Pores, voids and blow holes are defects in solid castings. Voids can be regarded as an agglomeration of vacancies. Pores are discontinuities or holes in solid parts. Such defects normally form during freezing due to one or combination of both the factors: (i) Evolution of dissolved gas at the solid-liquid interface. (ii) Decrease in volume that occurs during freezing in [...]