Replica Service
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In-Situ Metallography (Replica) Service
Petromaster is pleased to announce its on-site life assessment capabilities including replication, hardness testing, and field metallography.
These services are complementary to our plant integrity and life assessment services as well as other capabilities and utilize the extensive knowledge and experience of Petromaster’s in-house and international technical experts.
Field metallography provides early warnings of the onset of many damages to the process and engineering industries.
The replica can then be examined in the field using a portable optical microscope or in the laboratory.
This process gives our metallurgical engineers the ability to examine microstructural features such as grain size, cracks, carbides, and other damage mechanisms.
Damage mechanisms like creep, fatigue, stress relaxation cracking, high temperature corrosion including hydrogen attack, intergranular corrosion, stress corrosion cracking, hydrogen induced cracking, and graphitization are possible to detect in the early stages and monitor over time to provide judgments for repair or replacement.
What Type of Damages Can Be Identified by Replica Metallography?
- Spheroidization of Pearlite
- Creep Damage
- Stress Relaxation Cracking
- Grain Growth
- Hydrogen Attack
- Stress Corrosion Cracking
- Sigma Phase Evaluation
Benefits of In-Situ Metallography in Industries
- Monitor damages to plant components
- Preventive maintenance and inventory control
- Safe and reliable operation
- Ensure the correct metallurgical status of components
- Useful for indigenization
- Localization of imported component heat treatment certification
- Useful for repair decisions for used components
Relevant Codes and Standards
Currently ASTM and ISO standards describe the preparation and application of replicas in general terms:
- Standard Practice for Production and Evaluation of Field Metallographic Replicas, ASTM E1351-01 (2012)
- Non-destructive Testing – Metallographic Replica Techniques of Surface Examination, ISO 3057:1998
Guidelines are available from European research organizations where actual creep damage determined with replicas can be compared with reference images:
- VGB-S-517 “Guidelines for Rating the Microstructural Composition and Creep Rupture Damage of Creep-resistant Steel for High Pressure Pipelines and Boiler Components and their Weld Connections” (2014)
- NORD TEST NT TR 302 “Guidelines for Evaluating In-service Creep Damage” (1995)
- NORD TEST NT TR 170 “Reference Micrographs for Evaluation of Creep Damage in Replica Inspections” (1992)
In-Situ Metallography as a Tool for FFS
A fitness for service (FFS) assessment generally needs to verify shape, thickness, mechanical properties, and metallurgical condition of a component.
Some level of engineering analysis is also required. Field Metallographic Replication (FMR) is one task that may be required within the framework of a fitness-for-service assessment.
We provide teams of metallurgists and technicians to conduct in-situ FMR assessments or leverage laboratory resources when needed.
This approach enables quick assessment of degradation mechanisms impacting the service life of equipment.
These results can also be used as important inputs in fitness-for-service assessments such as API 579-1/ASME FFS-1.
Petromaster Replica Services
- Microstructure Surveys: Monitoring and health assessments of Boilers, Pipelines, Reactors, and Vessels.
- Databank Development: Periodic monitoring to establish databanks for preventive maintenance and inventory control.
- Expert Recommendations: Suggestions on repair and welding of used components based on databank insights.
- On-Site Evaluation: Swift evaluation of metallurgical and heat treatment condition directly at the site.
- Assistance in Studies and Projects: Support in remaining life assessment studies and failure analysis projects.
Unlock the power of precision with our replica services. Ensure the integrity of your critical components and machinery.
Contact Us:
Contact us now to elevate your maintenance and inspection standards.
Petromaster is a Saudi Company with its headquarter in Al-Khobar, Kingdom of Saudi Arabia. We provide a total system approach for assuring the integrity of industrial assets utilizing latest technologies, integrity programs, and innovative solutions. We have teams of experts available around the world available to provide specialized business solutions that align with client needs. efficiently through assuring the integrity of their assets.
Official Info
Feel free to contact us any time
Sat–Thu: 7:30am–4:30pm
+966 55 458 8774
info@petromaster-sa.com
Eastern Province Al-Khobar Kingdom of Saudi Arabia
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