Our clients often require metallurgical evaluations on samples which may not be modified for various reasons. In these cases, we perform replication metallography, which is the non-destructive (NDT) practice of duplicating the micro-structure of a component in order to observe grain structure at high magnification.

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Application:

1. Used in analyzing crack initiation in micro-structure.

2. Intergranular Corrosion (IGC) are detected using this.

3. Stress Corrosion Cracking (SCC) is detected using this method, usually in High energy piping inspection.

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Advantages:

1. Lower cost as specimens to be sectioned and mounted is not required using this method.

2. On-site evaluation using handheld microscope

3. Large or irregularly-shaped specimens may be replicated with relative ease.

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Limitation:

1. Highly skilled and experienced metallurgists are required for interpretation of replica

2. Replication can not be implemented on high temperature surfaces.