On-site Material Structure Analysis

Additional to the destructive laboratory testing services for materials SGS also provides in-service analysis using Replica Metallography. The microstructure of material used in components exposed to both high temperature and high stresses will over time deteriorate due to creep.

By metallographical methods such as Replica the actual condition can be monitored and any acute need for repair or the rate of inspection frequency in the future can be safely judged. The preparation for microstructure evaluation will include several grinding steps with subsequently higher finish in each step followed by either mechanically or electrolytically polishing.

One of the great advantages of the replica technique is that efficient preparation and collection of copies can be made on site by skilled personal and the evaluation can be done in the laboratory with the best microscopes by qualified metallurgists. Further the results can be documented by photos, and the replicas stored for comparison with later retesting.

SGS can utilise advanced portable equipment for polishing, grinding and etching as well as a portable microscope. Our teams of expert metallography technicians are capable to deliver quality and satisfactory services.