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Microstructure and mechanical properties of electron beam welded dissimilar steel to Fe-Al alloy joints
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Dinda, Soumitra Kumar, Basiruddin Sk, Md., Roy, Gour Gopal and Srirangam, Prakash (2016) Microstructure and mechanical properties of electron beam welded dissimilar steel to Fe-Al alloy joints. Materials Science and Engineering: A, 677 . pp. 182-192. doi:10.1016/j.msea.2016.09.050 ISSN 0921-5093.
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WRAP_Microstructure and mechanical properties of EBW steel and Fe 7Al dissimilar joints_MSE A 2016 (002).pdf - Accepted Version - Requires a PDF viewer. Download (3491Kb) |
Official URL: http://dx.doi.org/10.1016/j.msea.2016.09.050
Abstract
Electron beam welding (EBW) technique was used to perform dissimilar joining of plain carbon steel to Fe-7%Al alloy under three different weld conditions such as with beam oscillation, without beam oscillation and at higher welding speed. The effect of weld parameters on the microstructure and mechanical properties of dissimilar joints was studied using optical microscopy, SEM, EBSD, hardness, tensile and erichsen cup tests. Microstructure results show that the application of beam oscillation resulted in uniform and homogeneous microstructure compared to without beam oscillations and higher welding speed. Further, it was observed that weld microstructure changes from equiaxed to columnar grains depending on the weld speed. High weld speed results in columnar grain structure in the weld joint. Erichsen cup test results show that the application of beam oscillation results in excellent formability as compared to high weld speed. Tensile test results show no significant difference in strength properties in all three weld conditions, but the ductility was found to be highest for joints obtained with the application of weld beam oscillation as compared to without beam oscillation and high weld speed. This study shows that the application of beam oscillations plays an important role in improving the weld quality and performance of EBW dissimilar steel to Fe-Al joints.
Item Type: | Journal Article | ||||||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TS Manufactures |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||
Library of Congress Subject Headings (LCSH): | Electron beam welding, Steel -- Mechanical properties, Alloys, Microstructure, Electrons -- Backscattering, Fractography | ||||||||||
Journal or Publication Title: | Materials Science and Engineering: A | ||||||||||
Publisher: | Elsevier S.A. | ||||||||||
ISSN: | 0921-5093 | ||||||||||
Official Date: | 20 November 2016 | ||||||||||
Dates: |
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Volume: | 677 | ||||||||||
Page Range: | pp. 182-192 | ||||||||||
DOI: | 10.1016/j.msea.2016.09.050 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
Date of first compliant deposit: | 16 September 2016 | ||||||||||
Date of first compliant Open Access: | 14 September 2017 | ||||||||||
Funder: | UK-India Education Research Initiative (UKIERI), Warwick Manufacturing Group |
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