


Rocker Arm Shaft
This micrograph shows the layered structure of a rocker arm shaft made from low to medium carbon steel. Formed from rolled steel plate shaped into a tube, the process creates distinct bands of pearlite (iron and carbide) and ferrite (pure iron). In the image, blue layers represent iron, while the colored bands are pearlite. This banded structure improves strength and fatigue resistance, supporting the repetitive motion of valve actuation in the engine.
Alex Murray & Aliandra Clark 1000x
This micrograph shows the layered structure of a rocker arm shaft made from low to medium carbon steel. Formed from rolled steel plate shaped into a tube, the process creates distinct bands of pearlite (iron and carbide) and ferrite (pure iron). In the image, blue layers represent iron, while the colored bands are pearlite. This banded structure improves strength and fatigue resistance, supporting the repetitive motion of valve actuation in the engine.
Alex Murray & Aliandra Clark 1000x