Refine your search
Collections
Co-Authors
Journals
Year
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
B.S, Shivashankara
- Effect of processing route on grain refinement and mechanical properties in equal channel angular pressing of aluminium alloy AA7068
Abstract Views :139 |
PDF Views:1
Authors
Affiliations
1 Department of Mechanical Engineering, Malnad College of Engineering, Hassan 573202, Affiliated to VTU Belagavi, Karnataka, IN
2 School of Mechanical Engieering, REVA University, Bengaluru 560064, IN
1 Department of Mechanical Engineering, Malnad College of Engineering, Hassan 573202, Affiliated to VTU Belagavi, Karnataka, IN
2 School of Mechanical Engieering, REVA University, Bengaluru 560064, IN
Source
Journal of Mines, Metals and Fuels, Vol 69, No 12A (2021), Pagination: 1-7Abstract
Influence of different processing routes on microstructure of aluminum alloy AA7068 during equal channel angular pressing (ECAP) up to four passes is investigated. Equalchannel angular pressing is one of the best severe plastic deformation methods to achieve ultra-fine grain structure by subjecting metal to an intense plastic strain through a simple shear. A significant amount of grain refinement as occurred by passing aluminium alloy samples through ECAP split die at 200°C temperature from first pass up to four passes with two different processing routes such as route A and route Bc. The experimental results revealed that out of two different processing routes, route Bc where the samples are rotated by an angle of 90° in the same direction after each pass, is able to achieve rapid microstructure evolution with a better grain refinement and an equiaxed microstructure as compared to that of route A. Mechanical properties such as hardness and tensile strengths of the ECAP processed samples via route A and route Bc are also revealed that route Bc is the optimum process parameter which induces better mechanical properties into the metal.Keywords
ECAP, microstructure, AA7068, microstructure, mechanical properties.
References
- Divya, S. P., Nagaraj, M., Kesavamoorthy, M., Srinivasan, S. A., and Ravisankar B. (2017): Investigation on the Effect of ECAP Routes on the Wear Behaviour of AA2014. Transactions of the Indian Institute of Metals, 71(1), 67–77.
- Figueiredo, R. B., Cetlin, P. R., and Langdon, T. G. (2007): The processing of difficult-to-work alloys by ECAP with an emphasis on magnesium alloys. Acta Materialia, 55(14), 4769–4779.
- Furukawa M., Iwahashi, Y., Horita Z., Nemoto M., and Langdon, T. G. (1998). The shearing characteristics associated with equal-channel angular pressing. Materials Science and Engineering: A, 257(2), 328– 332.
- Gopi, K. R., and Shivananda Nayaka, H. (2017): Microstructure and mechanical properties of magnesium alloy processed by equal channel angular pressing (ECAP). Materials Today: Proceedings, 4(9), 10288–10292.
- Iwahashi, Y., Horita, Z. , Nemoto, M., Langdon, T.G. (1997): An investigation of microstructural evolution during equal-channel angular pressing. Acta Materialia, 45, 4733–4741.
- Iwahashi, Y., Horita, Z., Nemoto, M., and Langdon, T. G. (1998). The process of grain refinement in equalchannel angular pressing. Acta Materialia, 46(9), 3317–3331.
- Joshua, K. J., Vijay, S. J., Ramkumar, P., Selvaraj, D. P., and Kim, H. G. (2017): Investigation of microstructure and mechanical properties of AA7068 reinforced with MgO prepared using powdermetallurgy. First International Conference on Recent Advances in Aerospace Engineering (ICRAAE).
- Langdon, T.G., Furukaw, M., Nemoto, M., Horita, Z. (2000): Using equal channel angular pressing for refining grain size. J. Mater. (JOM), 52(4), 30–33.
- Regina Cardoso, K., Muñoz-Morris, M. A., Valdés León, K., and Morris, D. G. (2013): Room and high temperature ECAP processing of Al–10%Si alloy. Materials Science and Engineering: A, 587, 387–396.
- Segal, V.M., Reznikov, V.I., Drobyshevskiy, A.E. and Kopylov, V.I. (1981). Plastic Working of Metals by Simple Shear. Russian Metallurgy, 1, 99-105.
- Segal, V. M. (1995): Materials processing by simple shear. Materials Science and Engineering: A, 197(2), 157–164.
- Segal, V.M. (2006): Metal Processing by Severe Plastic Deformation. Russian Metallurgy (Metally), 2006 (5), 474–483. doi:10.1134/S003602950605017X.
- Su, C. W., Lu, L., and Lai, M. O. (2006): A model for the grain refinement mechanism in equal channel angular pressing of Mg alloy from microstructural studies. Materials Science and Engineering: A, 434 (1-2), 227–36.
- Tong, L. B., Zheng, M. Y., Hu, X. S., Wu, K., Xu, S. W., Kamado, S.,and Kojima, Y. (2010): Influence of ECAP routes on microstructure and mechanical properties of Mg–Zn–Ca alloy. Materials Science and Engineering: A, ol. 527(16-17), 4250–4256.
- Valiev R.Z. (1997): Structure and mech.anical properties of ultrafine-grained metals. Materials Science and Engineering A234-236, 59-66. doi:10.1016/s 0921- 5093(97) 00183-4.
- Venkatachalam, P., Ramesh kumar, S., Ravisankar, B., Thomas Paul, V., and Vijayalakshmi, M. (2010): Effect of processing routes on microstructure and mechanical properties of 2014 Al alloy processed by equal channel angular pressing. Transactions of Nonferrous Metals Society of China, 20(10), 1822– 1828.
- Venkatachalam, P., Roy S., Ravisankar B., Paul V. T., Vijayalakshmi M., and Suwas S. (2012): Effect of processing routes on evolution of texture heterogeneity in 2014 aluminium alloy deformed by equal channel angular pressing (ECAP). Materials Science and Technology, 28(12), 1445–1458.
- Zhao, X., Yang, X., Liu, X., Wang, C. T., Huang, Y., and Langdon, T. G. (2014): Processing of commercial purity titanium by ECAP using a 90 degrees die at room temperature. Materials Science and Engineering: A, 607, 482–489.
- Zhilyaev, A. P., Oh-ishi, K., Raab, G. I., and McNelley, T. R. (2006): Influence of ECAP processing parameters on texture and microstructure of commercially pure aluminum. Materials Science and Engineering: A, 441(1-2), 245–252.