In this research, a pivotal attempt is being made to determine the feasibility of welding alloy steel tubes
in pressure parts by employing Magnetically Impelled Arc Butt (MIAB) welding process. In view of this, a
specially made state of art MIAB welding unit (MD1) available at WRI, BHEL, Trichy has been employed
and adequate number of welding trials are conducted to weld alloy steel tubes of 6–7 mm thickness
for boiler applications. This paper presents a brief description of various non destructive tests carried
out on the MIAB welded joints. Radiography test is performed on the welded specimen under the non
destructive tests. Further, metallographic examinations [micrograph, macrograph and SEM] were carried
out on the welded specimens. Finally, X-rd examination is performed on the MIAB welded specimens
to observe the strain developed at the welded joint and the chemical composition of the weld and the
base metal. There are no test standards available for carrying out tests specifically on MIAB welded joints.
Hence, the test standards specified for welded tube specimens with solid state welding process (flash
butt welding) are adopted for the tests on MIAB welded specimens to assess the quality and strength. It
is observed that MIAB has several advantages in terms of its metallurgical integrity, quality and strength.