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Circular spall in hardened steel roll - Fractography


Figure 1: A large inclusion was found at the origin (fisheye fracture).

Defect name: No data.
Record No.: 2204
Type of defect (Internal/Surface): Internal, surface
Defect classification: Fractography
Steel name: Tool steel
Steel composition in weight %: No data.
Note:  Fatigue fractures occur due to repeated cyclic loading below the static yield strength. It is important to determine if fatigue was high-cycle or low-cycle, as the remedies for each are different.
Reference: Not shown in this demonstration version.