Abstract
Linear Friction Welding (LFW) has been a recently developed solid-state welding process, has capabilities to efficiently join heat treatable Aluminum alloys by limiting the time at the temperature of intermetallic compound formation during the weld cycle. The transverse tensile properties of LFW joints of AA7075 Aluminum Alloy was evaluated and correlated with the microstructural characteristics of the joint. The weld joints exhibited joint efficiency of 75% with the fracture at Thermo-Mechanically Affected Zone. The XRD pattern revealed the absence of major strengthening precipitate MgZn2 in weld nugget and TMAZ of the LFW joint. The absence of strengthening precipitates and coarse grain structure led to the deterioration of the mechanical properties in the TMAZ. The fracture surfaces of the tensile specimens revealed the ductile mode of failure.
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References
Rhodes CG, Mahoney MW, Bingel WH, Spurling RA, Bampton CC (1997) Effects of friction stir welding on microstructure of 7075 aluminum. Scriptamaterialia 36:69–75
Shtrikman MM (2010) Linear friction welding. Welding Int 24:563–569
Wenya L, Vairis A, Preuss M, Ma T (2016) Linear and rotary friction welding review. Int Mater Rev 61:71–100
Bhamji I, Preuss M, Moat RJ, Threadgill PL, Addison AC (2012) Linear friction welding of aluminium to magnesium. Sci Technol Weld Join 17:368–374
Buffa G, Cammalleri M, La Commare U, Fratini L (2017) Linear friction welding of dissimilar AA6082 and AA2011 aluminum alloys: microstructural characterization and design guidelines. Mater Form 10:307–315
Rotundo F, Ceschini L, Morri A, Jun TS, Korsunsky AM (2010) Mechanical and microstructural characterization of 2124Al/25vol.%SiC p joints obtained by linear friction welding (LFW). Com Part A: Appl Sci Manuf 41:1028–1037
Mishra RS, Ma ZY (2005) Friction stir welding and processing. Mater Sci Eng: R: Rep 50:1–78
Richard D, Adler PN (1977) Calorimetric studies of 7000 series aluminum alloys: I. Matrix precipitate characterization of 7075. Metall Mater Trans A 8:1177–1183
Mahoney MW, Rhodes CG, Flintoff JG, Bingel WH, Spurling RA (1998) Properties of friction-stir-welded 7075 T651 aluminum. Metall Mater Trans A. 29:1955–1964
Deshpande NU, Gokhale AM, Denzer DK, John L (1998) Relationship between fracture toughness, fracture path, and microstructure of 7050 aluminum alloy: Part I. Quantitative characterization. Metall Mater Trans A 29:1191–1201
Feng AH, Chen DL, Ma ZY (2010) Microstructure and cyclic deformation behavior of a friction-stir-welded 7075 Al alloy. Metall Mater Trans A 41:957–971
Kwon YJ, Saito N, Shigematsu I (2002) Friction stir process as a new manufacturing technique of ultrafine grained aluminum alloy. Mater Sci Lett 21:1473–1476
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Sivaraj, P., Vinoth Kumar, M., Balasubramanian, V. (2019). Microstructural Characteristics and Tensile Properties of Linear Friction-Welded AA7075 Aluminum Alloy Joints. In: Lakshminarayanan, A., Idapalapati, S., Vasudevan, M. (eds) Advances in Materials and Metallurgy. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-1780-4_45
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DOI: https://doi.org/10.1007/978-981-13-1780-4_45
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