Experimental investigation of forming limit, void coalescence and crystallographic textures of aluminum alloy 8011 sheet annealed at various temperatures

• Autorzy: Velmanirajan K. , Anuradha K. , Syed Abu Thaheer A. , Narayanasamy R. , Madhavan R. , Suwas S.

Identyfikatory

DOI

10.1016/j.acme.2013.10.009

• Języki publikacji: EN

Abstrakty

EN

In this work, a combined forming and fracture limit diagram, fractured void coalescence and texture analysis have been experimentally evaluated for the commercially available aluminum alloy Al 8011 sheet annealed at different temperatures viz. 200 °C, 250 °C, 300 °C and 350 °C. The sheets were examined at different annealing temperatures on microstructure, tensile properties, formability and void coalescence. The fractured surfaces of the formed samples were examined using scanning electron microscope (SEM) and these images were correlated with fracture behavior and formability of sheet metals. Formability of Al 8011 was studied and examined at various annealing temperatures using their bulk X-ray crystallographic textures and ODF plots. Forming limit diagrams, void coalescence parameters and crystallographic textures were correlated with normal anisotropy of the sheet metals annealed at different temperatures.

Słowa kluczowe

EN

forming; fractography; annealing; texture

PL

formowanie; wyżarzanie; tekstura

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2014
• Tom: Vol. 14, no. 3
• Strony: 398--416
• Opis fizyczny: Bibliogr. 28 poz., rys., tab., wykr.

Twórcy

autor

Velmanirajan K.

• Department of Mechanical Engineering, Kongunadu College of Engineering and Technology, Thottiyam 621215, Tiruchirappalli District, Tamil Nadu, India

autor

Anuradha K.

• Department of Chemistry, N.K.R Govt. Arts College(W), Namakkal 637001, Tamil Nadu, India

autor

Syed Abu Thaheer A.

• Department of Mechanical Engineering, PET Engineering College, Vallioor 627117, Tirunelveli District, Tamil Nadu, India

autor

Narayanasamy R.

• Department of Production Engineering, National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India

autor

Madhavan R.

• Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India

autor

Suwas S.

• Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India

Bibliografia

• [1] R. Narayanasamy, C. Sathiya Narayanan, Some aspects on fracture limit diagram developed for different steel sheets, Materials Science and Engineering A 417 (2006) 197-224.
• [2] S.P. Keeler, W.A. Backofen, Plastic instability and fracture in sheet stretched over rigid punches, ASM Transactions 56 (1) (1963) 25-48.
• [3] G.M. Goodwin, Application of Strain analysis to sheet metal forming in the press shop, SAE paper 680093, 1968.
• [4] S.S. Hecker, Simple technique for determining forming limit curves, Sheet Metal Industry November (52) (1975) 671-676.
• [5] R. Ravindran, K. Manonmani, R. Narayanasamy, An analysis of void coalescence in AL 5052 alloy sheets annealed at different temperature formed under different stress conditions, Materials Science and Engineering A 507 (2009) 252-267.
• [6] K. Velmanirajan, A. Syed Abu Thaheer, R. Narayanasamy, C. Ahamedbasa, Numerical modeling of aluminium sheets formabilityusing response surface methodology, Materials and Design 41 (2012) 239-254.
• [7] D. Banabic, I.R. Dorr, Prediction of the forming limit diagrams in pulsatory straining, Journal of Materials Processing Technology 45(1994) 551-556.
• [8] A. Barata da Rocha, F. Barlat, J.M. Jalinier, Prediction of the forming limit diagrams of anisotropic sheets in linear and non-linear loading, Materials Science and Engineering 68 (1985) 151-164.
• [9] D. Banabic, S. Valasutean, The effect of vibratory straining upon forming limit diagrams, Journal of Materials Processing Technology 34 (1992) 431-437.
• [10] J. Lian, B. Baudelet, Forming limit diagram of sheet metal in the negative minor strain region, Materials Science and Engineering 86 (1987) 137-144.
• [11] C.L. Chow, M. Jie, Forming limits of A1 6022 sheets with material damage consideration theory and experimental validation, International Journal of Mechanical Sciences 66 99-122.
• [12] R. Narayanasamy, M. Ravichandran, N.L. Parthasarathi, Effect of annealing temperature on formability of aluminium grade 19000, Materials and Design 29 (2008) 1633-1653.
• [13] L. Zhao, R. Sowerby, M.P. Sklad, A theoretical and experimental investigation of limit strains in sheet metal forming, International Journal of Mechanical Sciences 38 (1996) 1307-1317.
• [14] R. Hill, On discontinuous plastic states with special reference to localized necking in thin sheets, Journal of the Mechanics and Physics of Solids 1 (1952) 19-30.
• [15] Z. Marciniak, K. Kuczynski, T. Pokora, Influence of the plastic properties of material on the forming limit diagram for sheet metal in tension, International Journal of Mechanical Sciences 15 (1973) 789-805.
• [16] H.-W. Kim, S.-B. Kang, N. Tsuji, Y. Minamino, Elongation increase in ultra-fine grained Al-Fe-Si alloy sheets, Acta Materialia 53 (2005) 1737-1740.
• [17] J. Hu, K. Ikeda, T. Murakani, Materials Transactions, JIM 36 1363.
• [18] R. Narayanasamy, M. Ravichandran, C. Sathiya Narayanan, N. L. Parthasarathi, R. Ravindran, Effect of Annealing Temperature on void coalescence in 5086 aluminium alloy formed under different stress conditions, International Journal of Mechanics and Materials in Design 3 (2006) 293-307.
• [19] W.T. Roberts, Sheet Metal Industry 43 (237) (1966).
• [20] Ph. Lequeu, P. Gilormini, F. Montheillet, B. Bacroix, J.J. Jonas, Yield surfaces for textured polycrystals - I. Crystallographic approach, Acta Metallurgica 35 (439) (1987).
• [21] M. Aghaie-Khafri, R. Mahmudi, The effect of preheating on the formability of an Al-Fe-Si alloy sheet, Journal of Materials Processing Technology 169 (2005) 38-40.
• [22] J.-H. Ryu, D.N. Lee, The effect of precipitation on the evolution of recrystallization texture in AA8011 aluminium alloy sheet, Material Science and Engineering A336 (2002) 225-232.
• [23] Z.P. Xing, S.B. Kang, H.W. Kim, Softening behavior of 8011 alloy produced by accumulative roll bonding process, Scripta Materialia 45 (2001) 597-604.
• [24] S.C. Tang, L.B. Chappius, Evaluation of sheet metal forming process design by simple models, Journal of Materials and Manufacturing Processes 8 (1988) 19-26.
• [25] Y. Zhou, K.W. Neale, Predictions of forming limit diagrams using a rate-sensitive crystal plasticity model, International Journal of Mechanical Sciences 37 (1995) 1.
• [26] J. Hu, K. Ikeda, T. Murakami, Effect of texture components on plastic anisotropy and formability of aluminium alloy sheets, Journal of Materials Processing Technology 73 (1998) 49.
• [27] P.D. Wu, S.R. Mac-Even, D.J. Lloyd, K.W. Neale, Effect of cube texture on sheet metal formability, Materials Science and Engineering A 364 (2004) 182-187.
• [28] O. Engler, K. Lucke, Mechanisms of recrystallization texture formation in aluminium alloys, Scripta Metallurgica et Materialia 27 (1992) 1527.