Investigation of Microstructure and Mechanical Properties of Al-6061 Tubes Processed by Tubular Channel Angular Pressing Process Having Trapezoidal Channel Geometry | ||
| Iranian Journal of Materials Forming | ||
| دوره 9، شماره 2، تیر 2022، صفحه 36-45 اصل مقاله (1.42 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22099/ijmf.2022.42890.1214 | ||
| نویسندگان | ||
| A. Aghababaei؛ M. Honarpisheh* | ||
| Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran | ||
| چکیده | ||
| The many benefits of ultra-fine grained (UFG) tubes in the industry have led researchers to devise methods to increase the strength of tubes. Tubular channel angular pressing (TCAP) process is a new severe plastic deformation (SPD) technique to produce UFG tubes. In this research, at first, one pass of tubular channel angular pressing process with trapezoidal channel geometry is applied on Al-6061 samples. Then, mechanical properties such as yield strength, ultimate strength, hardness, and microstructure of the TCAPed samples are compared with the initial ones. In addition, effective strain and stress, processed load and deformation geometry during different stages of the tubular channel angular pressing process were investigated by finite element modeling. Finally, the results of the analytical model with finite element simulation were compared. It should be noted that the trapezoidal channel geometry has been used due to the high strain homogeneity and low force required for this channel geometry compared to other channel geometries. The microstructural results showed that the grain size of the initial samples was reduced from 92 µm to 785 nm in the TCAPed samples. The results of compression test showed that the yield strength and ultimate strength of the samples increased by 90% and 52%, respectively. The hardness of processed samples was also increased by 56% compared to the initial ones. | ||
| کلیدواژهها | ||
| TCAP؛ Trapezoidal channel geometry؛ Microstructure؛ Mechanical properties؛ Numerical simulation | ||
| مراجع | ||
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[1] T.G. Langdon, The processing of ultra-fine grained materials through the application of severe plastic deformation, Journal of Materials Science, 42(7) (2007) 3388-3397.
[2] E. Bagherpour, N. Pardis, M. Reihanian, R. Ebrahimi, An overview on severe plastic deformation: research status, techniques classification, microstructure evolution, and applications, The International Journal of Advanced Manufacturing Technology, 100(5) (2019) 1647-1694.
[3] M.I.A. El Aal, N. El Mahallawy, F.A. Shehata, M.A. El Hameed, E.Y. Yoon, J.H. Lee, H.S. Kim, Tensile properties and fracture characteristics of ECAP-processed Al and Al-Cu alloys, Metals and Materials International, 16(5) (2010) 709-716.
[4] M. Vaseghi, A.K. Taheri, H.S., Kim, Upper bound analysis of deformation and dynamic ageing behavior in elevated temperature equal channel angular pressing of Al-Mg-Si alloys, Metals and Materials International, 16(3) (2010) 363-369.
[5] M.S. Mohebbi, A. Akbarzadeh, Accumulative spin-bonding (ASB) as a novel SPD process for fabrication of nanostructured tubes, Materials Science and Engineering: A, 528(1) (2010) 180-188.
[6] M. Honarpisheh, M. Dehghani, E. Haghighat, Investigation of mechanical properties of Al/Cu striped by equal channel angular rolling, Procedia Materials Science, 11 (2015) 1-5.
[7] M. Honarpisheh, E. Haghighat, M. Kotobi, Investigation of residual stress and mechanical properties of equal channel angular rolled St12 strips, Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 232(10) (2018) 841-851.
[8] L.S. Tóth, M. Arzaghi, J.J. Fundenberger, B. Beausir, O. Bouaziz, and R. Arruffat-Massion, Severe plastic deformation of metals by high-pressure tube twisting, Scripta Materialia, 60(3) (2009) 175-177.
[9] F. Nazari, M. Honarpisheh, Analytical model to estimate force of constrained groove pressing process, Journal of Manufacturing Processes, 32 (2018) 11-19.
[10] F. Nazari, M. Honarpisheh, Analytical and experimental investigation of deformation in constrained groove pressing process, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 233(11) (2019) 3751-3759.
[11] H. Khanlari, M. Honarpisheh, Investigation of microstructure, mechanical properties and residual stress in non-equal-channel angular pressing of 6061 aluminum alloy, Transactions of the Indian Institute of Metals, 73(5) (2020) 1109-1121.
[12] M.A. Moazam, M. Honarpisheh, Improving the mechanical properties and reducing the residual stresses of AA7075 by combination of cyclic close die forging and precipitation hardening, Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 235(3) (2021) 542-549.
[13] M.A. Moazam, M. Honarpisheh, The effects of combined cyclic close die forging and aging process on microstructure and mechanical properties of AA7075, Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 234(9) (2020) 1242-1251.
[14] M.A. Moazam, M. Honarpisheh, Ring-core integral method to measurement residual stress distribution of Al-7075 alloy processed by cyclic close die forging, Materials Research Express, 6(8) (2019) 0865j3.
[15] G. Faraji, M.M. Mashhadi, H.S. Kim, Tubular channel angular pressing (TCAP) as a novel severe plastic deformation method for cylindrical tubes, Materials Letters, 65(19-20) (2011) 3009-3012.
[16] G. Faraji, M.M. Mashhadi, H.S. Kim, Deformation behavior in tubular channel angular pressing (TCAP) using triangular and semicircular channels, Materials Transactions, 53(1) (2012) 8-12.
[17] M. Mesbah, G. Faraji, A.R. Bushroa, Characterization of nanostructured pure aluminum tubes produced by tubular channel angular pressing (TCAP), Materials Science and Engineering: A, 590 (2014) 289-294.
[18] F. Reshadi, G. Faraji, S. Aghdamifar, P. Yavari, M.M. Mashhadi, Deformation speed and temperature effect on magnesium AZ91 during tubular channel angular pressing, Materials Science and Technology, 31(15) (2015) 1879-1885.
[19] M. Mesbah, G. Faraji, A.R. Bushroa, Electron back-scattered diffraction and nanoindentation analysis of nanostructured Al tubes processed by multipass tubular-channel angular pressing, Metals and Materials International, 22(2) (2016) 288-294.
[20] G. Faraji, F. Reshadi, M. Baniasadi, A new approach for achieving excellent strain homogeneity in tubular channel angular pressing (TCAP) process, Journal of Advanced Materials and Processing, 2(1) (2014) 3-12.
[21] Material Property Data (MatWeb) (2021), Aluminum 6061-O. [online] site. Available at: http://www.matweb.com/search/DataSheet.aspx?MatGUID=626ec8cdca604f1994be4fc2626ec8cdca604f1994be4fc2bc6f7f63&ckck=1 [Accessed 15 Oct. 2021].
[22] ASTM E3-01, Standard guide for preparation of metallographic specimens, ASTM International, Philadelphia, Pennsylvania, 2009.
[23] ASTM E112-96, Standard test methods for determining average grain size, ASTM International, 2004.
[24] ASTM E407-07, Standard practice for microetching metals and alloys, ASTM International, West Conshohocken, PA, 2012.
[25] ASTM E384-05a, Standard test method for microindentation hardness of materials, ASTM International, West Conshohocken, PA, 2005.
[26] G. Faraji, M.M. Mashhadi, S.H. Joo, H.S. Kim, The role of friction in tubular channel angular pressing, Reviews on Adavanced Materials Science, 31(1) (2012) 12-18.
[27] G. Faraji, S. Roostae, A. Seyyed Nosrati, J.Y. Kang, H.S. Kim, Microstructure and mechanical properties of ultra-fine-grained Al-Mg-Si tubes produced by parallel tubular channel angular pressing process, Metallurgical and Materials Transactions A, 46(4) (2015) 1805-1813.
[28] Z.S. Wang, Y.J. Guan, P. Liang, Deformation efficiency, homogeneity, and electrical resistivity of pure copper processed by constrained groove pressing, Rare Metals, 33(3) (2014) 287-292.
[29] A. Krishnaiah, U. Chakkingal, P. Venugopal, Applicability of the groove pressing technique for grain refinement in commercial purity copper, Materials Science and Engineering: A, 410 (2005) 337-340.
[30] Z.S. Wang, Y.J. Guan, C.K. Zhong, Effects of friction on constrained groove pressing of pure Al sheets, In Advanced Materials Research, Trans Tech Publications Ltd., 2014, Vol. 926, pp. 81-84.
[31] F. Khodabakhshi, M. Abbaszadeh, H. Eskandari, S.R. Mohebpour, Application of CGP-cross route process for microstructure refinement and mechanical properties improvement in steel sheets, Journal of Manufacturing Processes, 15(4) (2013) 533-541.
[32] S.S. Kumar, T. Raghu, Structural and mechanical behaviour of severe plastically deformed high purity aluminium sheets processed by constrained groove pressing technique, Materials & Design, 57 (2014) 114-120.
[33] C. Xu, M. Furukawa, Z. Horita, T.G. Langdon, Using ECAP to achieve grain refinement, precipitate fragmentation and high strain rate superplasticity in a spraycast aluminum alloy, Acta Materialia, 51(20) (2003) 6139-6149.
[34] C. Xu, Z. Horita, T.G. Langdon, The evolution of homogeneity in processing by high-pressure torsion, Acta Materialia, 55(1) (2007) 203-212.
[35] C. Xu, K. Xia, T.G. Langdon, The role of back pressure in the processing of pure aluminum by equal-channel angular pressing, Acta Materialia, 55(7) (2007) 2351-2360.
[36] A.V. Nagasekhar, S.C. Yoon, Y. Tick-Hon, H.S. Kim, An experimental verification of the finite element modelling of equal channel angular pressing, Computational Materials Science, 46(2) (2009) 347-351.
[37] H.H. Bok, M.G. Lee, H.D. Kim, M.B. Moon, Thermo-mechanical finite element analysis incorporating the temperature dependent stress-strain response of low alloy steel for practical application to the hot stamped part, Metals and Materials International, 16(2) (2010) 185-195.
[38] V. Jayasekara, K.H. Min, J.H. Noh, M.T. Kim, J.M. Seo, H.Y. Lee, B.B. Hwang, Rigid-plastic and elastic-plastic finite element analysis on the clinching joint process of thin metal sheets, Metals and Materials International, 16(2) (2010) 339-347.
[39] M.S. Kim, Y.W. Chang, Load relaxation and creep behavior of a spray cast hypereutectic Al-25Si-2Cu-1Mg alloy, Metals and Materials International, 16(3) (2010) 371-376.
[40] J.H. Chung, J.B. Jeon, Y.W. Chang, Work-hardening and ductility enhancement mechanism of cold rolled multiphase TRIP steels, Metals and Materials International, 16 (2010) 533-541.
[41] H.S. Kim, Finite element analysis of deformation behaviour of metals during equal channel multi-angular pressing, Materials Science and Engineering: A, 328(1-2) (2002) 317-323. | ||
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