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Title: Metallurgical and mechanical characterization of mild steel-mild steel joint formed by microwave hybrid heating process
Authors: Bansal A.
Sharma, Apurbba Kumar
Das S.
Published in: Sadhana - Academy Proceedings in Engineering Sciences
Abstract: In this paper, mild steel-mild steel (MS-MS) joints fabricated through microwave hybrid heating (MHH) have been characterized using X-ray diffraction (XRD), scanning electron microscope (SEM), electron probe micro analyser (EPMA), Vicker's microhardness measurement and tensile strength. The XRD spectrum of the developed joints shows substitution type of solid solution form in the joint zone. The back scattered electron (BSE) images of the joint obtained by SEM show complete melting of powder particle and consequently diffusion bonding takes place between the substrate and the powder particle. The electron probe micro analysis shows diffusion of element across the joint. The Vicker's micro hardness of the joints was measured to be 420 ± 30 Hv, which is higher than that of substrate hardness 230 ± 10 Hv. The tensile strength of the sample was measured by an universal testing machine and found to be 240 MPa which is about 50% of base material strength. The SEM micrographs of the fractured sample indicate mixed modes of failure during fracture of the joint; both ductile and brittle modes of failures occurred as indicated by dimple and cleavage of the brittle faces, respectively. © 2013 Indian Academy of Sciences.
Citation: Sadhana - Academy Proceedings in Engineering Sciences, 38(4): 679-686
Issue Date: 2013
Keywords: diffusion bonding
hybrid heating
ISSN: 2562499
Author Scopus IDs: 36144920800
Author Affiliations: Bansal, A., Mechanical and Industrial Engineering Department, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Sharma, A.K., Mechanical and Industrial Engineering Department, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Das, S., Reactor Control Division, Babha Atomic Research Centre, Mumbai, 400 012, India
Funding Details: The authors would like to thank the Board of Research in Nuclear Sciences (BRNS), Mumbai, Government of India for financial assistance through Research Project Grant No. 2010/36/60-BRNS/2048. Board of Research in Nuclear Sciences, BRNS: 2010/36/60-BRNS/2048
Corresponding Author: Bansal, A.; Mechanical and Industrial Engineering Department, , Roorkee, 247 667, India; email:
Appears in Collections:Journal Publications [ME]

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