Microscopic Examination
Microscopic examination is a detailed analysis of weld joints under the microscope to spot phase fractions and grain boundary anomalies. It backs up the metallurgical quality analysis.
Physical and chemical mechanism
Microscopic examination makes it possible to analyze the structure of welded joints under a microscope. This reveals phase fractions such as copper phases or grain-boundary anomalies.
Metallurgical relevance and welding risks
Microscopic examination helps detect defects such as inadequate galvanizing, missing copper phases, or excessively large grain boundaries. These defects can impair the toughness and service life of the weld seam.
Workshop practice and instructions
A high-resolution optical microscope is used for microscopic examination. The weld seam is inspected under the microscope for correct phase distribution and defect-free grain boundaries. If anomalies are found, welding parameters such as temperature or voltage should be adjusted.