5. Conclusions
Various non destructive tests and metallurgical characterization
are carried out on MIAB welded joints. The significant conclusions
from these tests are as follows:
• The quality of MIAB welded joints are within the acceptable limits
for almost all the specimens tested (defect level is about 1–2%).
• Macro and micro structural analysis shows a good bonding and
microstructural integrity in the weld region.
• X-ray diffraction analysis emphasizes the expulsion of impurity
phases in MIAB welded joints making the weldment free from
inclusions.
This emphasizes that MIAB welded joints are competent to
replace the existing conventionaltechniques in pressure part applications.