To ensure that everything is foolproof, titanium ingots need to go through a complete testing system from macro to micro, from physics to chemistry before leaving the factory, and build a tight quality firewall. Chemical composition analysis is the primary challenge, using a photoelectric direct reading spectrometer for fast and accurate total element analysis.
Macroscopic organization inspection shows clear solidification crystal stripes on the end face of the ingot corroded by a specific acid solution, which is used to determine the morphology of the melt pool, evaluate macroscopic segregation, and discover defects such as shrinkage and porosity. The king of non-destructive testing - ultrasonic testing is the core link. Using multi-channel automation equipment, longitudinal and transverse waves are used to scan the ingot 100% volume, which can sensitively detect millimeter sized inclusions, cracks or holes inside, and generate three-dimensional C-scan images for accurate defect localization, quantitative and qualitative evaluation. Microstructure and performance verification are the final decision. Cut the test ring at the designated location of the ingot, prepare metallographic samples, and observe the grain size, morphology, and alpha/beta phase distribution under optical and electron microscopes; Simultaneously process into standard samples and test their complete set of mechanical properties such as tensile, impact, fatigue, etc. This multi-level and three-dimensional testing system jointly ensures the inherent reliability of the delivered products.
