Case hardening (carburizing) produced globular and semi continuous carbides an undesirable brittle phase in the case microstructure
Failure Mode Analysis
Failure Mode is the manner by which a failure is observed; it generally describes the way the failure occurs. At ATRONA this is conducted through visual analysis, stereoscopic analysis and scanning electron microscopy examination. The images above are all SEM images taken by our scanning electron microscopes by our own Matt Strack of fracture faces and contaminated regions. There are many types of failure modes including:
- Ductile and Brittle Failure Modes
- Dimple Rupture / microvoid coalescence
- Intergranular and Transgranular
- Stress Corrosion Cracking (SCC)
- Hydrogen Embrittlement
- Cleavage type ruptures
- Creep and Elongation
- Tensile and Compressive Modes
- Corrosion (many types)
- Fatigue (High & Low Cycles)
- Lamination and Streaking
With our Great Scanning Electron Microscopy capabilities these failure modes are easily revealed and identified. Even if the fracture face is corroded, we have ways to clean the fracture surface to reveal the mode of failure.
