Failure Analysis Laboratory
Root-cause investigation when a component fails — combining metallography, chemistry, and mechanics to identify failure mechanisms.
What Is Failure Analysis
Failure analysis is a systematic, forensic investigation to determine why a metal component or assembly failed during service or testing. Our approach integrates metallographic examination, fractography, chemical analysis, and mechanical testing to isolate the primary failure mode and identify contributing root causes.
Microstructural Comparison Visualizer
Drag the slider to compare a healthy, uniform steel grain matrix (left) against a failed alloy sample showing fatigue crack propagation (right) under Scanning Electron Microscope (SEM) imaging.
Our Investigation Process
- Initial examination, photography, and documentation of the failed parts.
- Careful specimen extraction at the fracture origin/failure interface.
- Metallographic analysis to examine microstructure, grain flow, and crack path.
- Chemical composition analysis to confirm proper material grade.
- Mechanical testing to verify compliance with specification limits.
- Formulation of a comprehensive report detailing findings, root cause, and preventative recommendations.
Standards & Test Parameters
| Investigation Type | Standard Referenced | Details & Scope |
|---|---|---|
| Visual & Macro-examination | ASTM E340 / ASTM E290 | Weld inspection, fracture surface macro-features |
| Microstructural Examination | ASTM E3 / ASTM E407 | Grain structures, inclusions, decarburization profiling |
| Hardness & Microhardness Profile | ASTM E18 / ASTM E384 | Case depth verification, localized softening/hardening |
| Chemical & Alloy Verification | IS 228 / ASTM E415 | Verification of material chemistry and compliance limits |
Frequently Asked Questions
What types of component failures do you investigate?
We investigate fractures (brittle/ductile), fatigue failures, wear-related failures, stress corrosion cracking, weld defects, and unexpected failures of industrial boilers, piping, shafts, bolts, and structures.
Can Sohm Analytical engineers visit sites for in-situ examination?
Yes. For heavy structural or immovable plant machinery failures, our engineering team conducts on-site visual audits, takes replication samples, and selects target cuts for laboratory analysis.