


Cylinder Lining Interface 2
This micrograph shows the interface between the inner and outer walls of an engine block’s piston cylinder. Each region has a distinct microstructure tailored for a specific function—wear resistance on the inner wall and structural support on the outer. In this high-mileage engine, dark cracks have formed along the interface. These features reveal how stress and long-term use can lead to microstructural fatigue and failure over time.
Raymond Thompson MAG. 500x
This micrograph shows the interface between the inner and outer walls of an engine block’s piston cylinder. Each region has a distinct microstructure tailored for a specific function—wear resistance on the inner wall and structural support on the outer. In this high-mileage engine, dark cracks have formed along the interface. These features reveal how stress and long-term use can lead to microstructural fatigue and failure over time.
Raymond Thompson MAG. 500x