Microstructural analysis of a grey cast iron self-ventilating brake disc
Micro-structural analysis of a grey cast iron self-ventilating brake disc.
The images show the presence of lamellar graphite (black colored, in the low magnification image) and a perlitic micro-structure (in the high magnification image with Nital 2% chemical etchant).

100X magnification – lamellar graphite (black colored)

1000X magnification – Nital 2% chemical etchant – perlitic micro-structure
Intergranular corrosion
Ongoing integranular corrosion tests at Kaizen Lab (ASTM A262 / ISO 3651-2)
UT Calibration Blocks (ultrasound testing)
Kaizen Lab offers a full service regarding the UT calibration blocks (ultrasound testing). This service concerns the roughing, turning, surface preparation, rectification, milling and the dimensional certification in accordance to the most common standards.