Services

Onsite Metallography

DMS have proven capability of conducting Onsite Metallography which is commonly known as replica metallography. DMS have facilities for In - Field replica examination to determine metallurgical structure by an experienced metallurgist.

Insitu Metallography

Insitu metallography allows direct and quick evaluation of metallurgical condition or assessment to confirm the fitness for service as a component or as a system. Deep Metallurgical Services (DMS) have been employing this technique to monitor the plant health condition.

Replica taken at site

Replica showing carbide at grain boundary

Replica taken at site can also be observed and analyzed in the laboratory by optical microscope or by environmental scanning electron microscope when sufficient time is available. The comparative analysis between insitu and onsite metallography is given below;

Parameter	Insitu metallography	Onsite metallography
Technique	Insitu assessment and interpretation with no replica	Onsite assessment through replica allowing sufficient time for interpretation
Microscope Mandatory; high resolution Optical microscope at site		Optional ; high resolution optical microscope at site
Imaging	Mandatory; digital image capturing system at site	Optional for digital imaging system
Decision	Based onIinsitu examination	Based on replica examination at site or at laboratory
Manpower	Mandatory ; experienced metallurgist with field service team at site	Optional experience metallurgist may not available at site
Mag.	Optical; 400x with 4xzoom	Optical; 1000x, ESEM- 10,000x Normal grinder and polisher optional optional electrolytic polisher.

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