Room Temperature Consolidation of Al and B4C Composite Powder by Equal Channel Angular Pressing

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The aim at the present work is to study the consolidation behavior of Al and B4Ccomposite powder processed by Equal Channel Angular Pressing (ECAP) at room temperature. The composition of the composite powder is 95 wt% Al and 5 wt% B4C. The Al-B4C composite powder is subjected to ECAP through processing route A up to 4 passes. The ECAP die used for densification has 90° channel angle and 20° corner angle. It is found that the density and hardness of the composite are improved as the ECAP passes is increased. The microstructure is homogeneous and partial fragmentation of reinforcement is observed. Density and hardness measured after four ECAP are 97% and 98 HV. The improvement of density and hardness is the due strain enhances consolidation of powders during ECAP.

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592-596

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November 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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[1] Ruslan Z. Valiev, Terence G. Langdon, Principles of equal-channel angular pressing processing tool for grain refinement, Prog. in Mat. Sci. 51 (2006) 881-981.

DOI: 10.1016/j.pmatsci.2006.02.003

Google Scholar

[2] P. Venkatachalam, B. Ravisankar, S. Kumaran, Microstructure and mechanical properties of 2014 Al alloy processed by Equal Channel Angular Pressing (ECAP), Int. J. Microstructure and Materials Properties. 5 No. 1 (2010) 88-100.

DOI: 10.1504/ijmmp.2010.032504

Google Scholar

[3] Cheng Xu, Zenji Horita, Terence G. Langdon, Microstructural evolution in an aluminum solid solution alloy processed by ECAP, Mat. Sci. & Eng. A. 528 Issue 18 (2011) 6059-6065.

DOI: 10.1016/j.msea.2011.04.017

Google Scholar

[4] G. Ramu, Ranjit Bauri, Effect of equal channel angular pressing (ECAP) on microstructure and properties of Al-SiCp composites, Mat. and Des. 30 (2009) 3554- 3559.

DOI: 10.1016/j.matdes.2009.03.001

Google Scholar

[5] B. Mani, M. H. Paydar, Application of forward extrusion-equal channel angular pressing (FE-ECAP) in fabrication of aluminum metal matrix composites, J. of Alloys and Compounds. 492 (2010) 116-121.

DOI: 10.1016/j.jallcom.2009.11.098

Google Scholar

[6] Saeideh Mirab, Ahmadabadi, On flow and mechanical behavior Al matrix composite reinforced by nickel based (90% Ni-10% Cr) wires during equal channel angular pressing, Mat. Sci. & Eng. A. (2013) 583, 43-51.

DOI: 10.1016/j.msea.2013.05.031

Google Scholar

[7] M. Balog, P. Yub, M. Qian, M. Behulova, P. SvecSr, R. Cicka, Nanoscaled Al-AlN composites consolidated by equal channel angular pressing (ECAP) of partially insitu nitrided Al powder, Mat. Sci. & Eng. A. 562 (2013) 190-195.

DOI: 10.1016/j.msea.2012.11.040

Google Scholar

[8] S.C. Lee, S. Y. Ha, K. T. Kim, S. M. Hwang, L. M. Huh, H. S. Chung, Finite element analysis for deformation behavior of an aluminum alloy composite containing SiC particles and porosities during ECAP, Mat. Sci. & Eng. A. 371 (2004) 306-312.

DOI: 10.1016/j.msea.2003.12.029

Google Scholar

[9] Liping Bian, Wei Liang, Guoyin Xie, Wenli Zhang, Jinbo Xue, Enhanced ductility in an Al-Mg2Si in situ composite processed by ECAP using a modified BC route, Mat. Sci. & Eng. A. 528 (2011) 3463-3467.

DOI: 10.1016/j.msea.2011.01.034

Google Scholar

[10] Nishtha Gupta, S. Ramesh Kumar , B. Ravisankar, S. Kumaran, Consolidation of Al-2024 Powder by Conventional P/M Route and ECAP – A Comparative Study, World Academy of Science, Engg. and Tech. Vol: 6 (2012) 912-915.

Google Scholar

[11] Mateja Snajdar Musa, Zdravko Schauperl, ECAP – New consolidation method for production of aluminium matrix composites with ceramic reinforcement, Proc. and App. of Ceramics. 7.

DOI: 10.2298/pac1302063s

Google Scholar

[2] (2013) 63-68.

Google Scholar

[12] C. N. Athreya, V. P. Mahesh, M. Brahmakumar, T. P. D. Rajan, K. Narayan Prabhu, B. C. Pai, R. K. Gupta, P. Ramkumar, Equal channel angular pressing of aluminum- alumina in situ metal matrix composite, Mat. Sci. Forum. 710 (2012) 247-252.

DOI: 10.4028/www.scientific.net/msf.710.247

Google Scholar

[13] S. C. Yoon, H. S. Kim, Equal Channel Angular Pressing of Metallic Powders for Nanostructured Materials, Mat. Sci. Forum. Vols. 503-504 (2006) 221-226.

DOI: 10.4028/www.scientific.net/msf.503-504.221

Google Scholar

[14] Ramu Yarra, P. Venkatachalam, S. Ramesh Kumar, B. Ravisankar, K. Jayasankar, P. S. Mukherjee, Densification of Al-Y2O3 composite powder by equal channel angular pressing, Trans. of the Indian Instit. of Metals. 63 Issue 5 (2010) 813 - 817.

DOI: 10.1007/s12666-010-0124-8

Google Scholar

[15] G. Kondaiah, K. Chandra Sekhar, B. Chaithanyakrushna, B. Ravisankar, S. Kumaran, Characterization of Mechanically Alloyed Al5083 Alloy and Composite and Consolidation by Equal Channel Angular Pressing, App. Mech. and Mat. Vols 764-765 (2015).

DOI: 10.4028/www.scientific.net/amm.764-765.23

Google Scholar

[16] R. Derakhshandeh, H. A. Jenabali Jahromi, An investigation on the capability of equal channel angular pressing for consolidation of aluminum and aluminum composite powder. Materials and Design. 32 (2011) 3377-3388.

DOI: 10.1016/j.matdes.2011.02.015

Google Scholar

[17] Ping LI, Ke-min XUE, Xiao-xi WANG, Chen-hao QIAN, Refinement and consolidation of pure Al particles by equal channel angular pressing and torsion, Trans. Nonferrous Met. Soc. China. 24 (2014) 1289-1294.

DOI: 10.1016/s1003-6326(14)63190-3

Google Scholar