Effect of material location and tool rotational speed on microstructure and tensile strength of dissimilar friction stir welded aluminum alloys

• Autorzy: Dinaharan I. , Kalaiselvan K. , Vijay S. J. , Raja P.
• Języki publikacji: EN

Abstrakty

EN

The dissimilar welding of cast and wrought aluminum alloys has high potential to expand the usage of economical castings. Friction stir welding (FSW) is an appropriate technique to join dissimilar aluminum alloys. The present work investigates the effect of material location and tool rotational speed on microstructure and tensile strength of dissimilar friction stir welded cast and wrought aluminum alloy AA6061. Eight joints were made using four tool rotational speeds by changing the location of each aluminum alloy in advancing and retreading sides. The results indicated that the material location prior to welding and tool rotational speed significantly influenced the material flow behavior. The material placed in the advancing side occupied the major portion of the weld zone when tool rotational speed was increased. The microstructure of the dissimilar joints exhibited the presence of four zones namely base metal, heat affected zone, thermomechanically affected zone and weld zone. The weld zone revealed two kinds of regions namely unmixed region and mechanically mixed region. The dissimilar joint showed maximum tensile strength when cast aluminum alloy was placed in the advancing side at all tool rotational speeds.

Słowa kluczowe

EN

aluminum alloy; friction stir welding; microstructure; tensile strength

PL

stop aluminium; mikrostruktura; wytrzymałość na rozciąganie

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2012
• Tom: Vol. 12, no. 4
• Strony: 446--454
• Opis fizyczny: Bibliogr. 21 poz., rys., wykr.

Twórcy

autor

Dinaharan I.

• School of Mechanical Sciences, Karunya University, Coimbatore 641114, Tamil Nadu, India

autor

Kalaiselvan K.

• Department of Mechanical Engineering, K.S. Rangasamy College of Technology, Tiruchengode 637215, Tamil Nadu, India

autor

Vijay S. J.

• School of Mechanical Sciences, Karunya University, Coimbatore 641114, Tamil Nadu, India

autor

Raja P.

• Department of Mechanical Engineering, Paavai Group of Institutions, Namakkal 637018, Tamil Nadu, India

Bibliografia

• [1] R.S. Mishra, Z.Y. Ma, Friction stir welding and processing, Materials Science and Engineering R: Reports 50 (1–2) (2005) 1–78.
• [2] P.L. Threadgill, A.J. Leonard, H.R. Shercliff, P.J. Withers, Friction stir welding of aluminium alloys, International Materials Reviews 54 (2) (2009) 49–93.
• [3] R. Nandan, T. Debroy, H.K.D.H. Bhadeshia, Recent advances in friction stir welding process, weldment structure and properties, Progress in Materials Science 53 (6) (2008) 980–1023.
• [4] G. Cam, Friction stir welded structural materials: beyond Alalloys, International Materials Reviews 56 (1) (2011) 1–48.
• [5] L. Karthikeyan, V.S. Senthilkumar, K.A. Padmanabhan, On the role of process variables in the friction stir processing of cast aluminum A319 alloy, Materials and Design 31 (2) (2010) 761–771.
• [6] M. Jayaraman, R. Sivasubramanian, V. Balasubramanian, Establishing relationship between the base metal properties and friction stir welding process parameters of cast aluminium alloys, Materials and Design 31 (9) (2010) 4567–4576.
• [7] A. Heinz, A. Haszler, C. Keidel, S. Moldenhauer, R. Benedictus, W.S. Miller, Recent development in aluminium alloys for aerospace applications, Materials Science and Engineering A 80 (1) (2000) 102–107.
• [8] L.E. Murr, A Review of FSW research on dissimilar metal and alloy systems, Journal of Materials Engineering and Performance 19 (8) (2010) 1071–1089.
• [9] W.B. Lee, Y.M. Yeon, S.B. Jung, The mechanical properties related to the dominant microstructure in the weld zone of dissimilar formed Al alloy joints by friction stir welding, Journal of Materials Science 38 (20) (2003) 4183–4191.
• [10] W.B. Lee, Y.M. Yeon, S.B. Jung, The joint properties of dissimilar formed Al alloys by friction stir welding according to the fixed location of materials, Scripta Materialia 49 (5) (2003) 423–428.
• [11] S. Lim, S. Kim, C.G. Lee, S. Kim, Tensile behavior of frictionstir-welded A356-T6/Al 6061-T651 Bi-alloy plate, Metallurgical and Materials Transactions A 35 (9) (2004) 2837–2843.
• [12] Y. Uematsu, Y. Tozaki, K. Tokaji, M. Nakamura, Fatigue behavior of dissimilar friction stir welds between cast and wrought aluminum alloys, Strength of Materials 40 (1) (2008) 138–141.
• [13] M. Ghosh, K. Kumar, S.V. Kailas, A.K. Ray, Optimization of friction stir welding parameters for dissimilar aluminum alloys, Materials and Design 31 (6) (2010) 3033–3037.
• [14] M. Tehyo, P. Muangjunburee, S. Chuchom, Friction stir welding of dissimilar joint between semi-solid metal 356 and AA 6061-T651 by computerized numerical control machine, Songklanakarin Journal of Science and Technology 33 (4) (2011) 441–448.
• [15] M. Jayaraman, R. Sivasubramanian, V. Balasubramanian, A.K. Lakshminarayanan, Optimization of process parameters for friction stir welding of cast aluminium alloy A319 by Taguchi method, Journal of Scientific and Industrial Research 68 (1) (2009) 36–43.
• [16] M. Jayaraman, R. Sivasubramanian, V. Balasubramanian, Effect of process parameters on tensile strength of friction stir welded cast LM6 aluminium alloy joints, Journal of Materials Science and Technology 25 (5) (2009) 655–664.
• [17] J.H. Ouyang, R. Kovacevic, Material flow and microstructure in the friction stir butt welds of the same and dissimilar aluminum alloys, Journal of Materials Engineering and Performance 11 (1) (2002) 51–63.
• [18] S.T. Amancio Filho, S. Sheikhi, J.F. Dos Santos, C. Bolfarini, Preliminary study on the microstructure and mechanical properties of dissimilar friction stir welds in aircraft aluminium alloys 2024-T351 and 6056-T4, Journal of Materials Processing Technology 206 (1–3) (2008) 132–142.
• [19] S.K. Park, S.T. Hong, J.H. Park, K.Y. Park, Y.J. Kwon, H.J. Son, Effect of material locations on properties of friction stirwelding joints of dissimilar aluminium alloys, Science and Technology of Welding and Joining 15 (4) (2010) 331–336.
• [20] R. Palanivel, P. Koshy Mathews, N. Murugan, I. Dinaharan, Effect of tool rotational speed and pin profile on microstructure and tensile strength of dissimilar friction stir welded AA5083-H111 and AA6351-T6 aluminum alloys, Materials and Design 40 (1) (2012) 7–16.
• [21] R. Priya, V.S. Sarma, K.P. Rao, Effect of post weld heat treatment on the microstructure and tensile properties of dissimilar friction stir welded AA 2219 and AA 6061 alloys, Transactions of The Indian Institute of Metals 62 (1) (2009) 11–19.