Akash Deep Sharma
Department of Physics, Government College Chowari, Chamba, 176302, India
A.K. Sharma
Dean Research, Om Sterling University, Hisar -125001, India
N. Thakur
Department of Physics, Himachal Pradesh University, Shimla, 171005, India
Titanium powder was rapidly solidified by using shock-wave consolidation technique. The critical parameters were controlled by intrumented detonics and pin-oscillography. The compacted specimens were investigated for crystal structure and microstructural strengthening by using standard diagnostic techniques. The density of the final product was found to be greater than 96% of the theoretical value. X-ray diffraction pattern reveals intact crystalline structure without the presence of any undesired phases. The particle size reduction indicated by XRD was supported by laser diffraction based particle size analyzer. Results from energy dispersive spectroscopy ruled out the possibility of any segregation within the compacts. Scanning electron microscopy showed crack-free, voids-free, melt-free, fracture-less compacts of titanium with a unidirectional dendrite orientation without any grain-growth.
[1] Metals Handbook, 1980, 3.
[2] ASM Handbook, 1990, 1.
[3] C. Suryanarayana, F.R. Froes, The current status of titanium rapid solidification, Journal of the Minerals, Metals & Materials Society,1990, 1: 22-25.
[4] A.D. Sharma, A.K. Sharma, N.Thakur, Crystallographic, microstructural and mechanical characterization of dynamically- processed EP741NP superalloy, J. Metall. and Material. Trans. B; 2016, 47: 2479-2486.
[5] M.A. Meyers, Dynamic Behavior of Materials. Wiley Pub. New York, 1994.
[6] Komizoyu-ichi, Terasaki Hidenori, Saiki Keta, Ideka Masahiko, Direct observation of solidification and phase transformation in pure titanium, Transaction of JWRI, 2009, 38: 43-47.
[7] A. A. Bukaemskii and E.N. Fedorova, Explosive compaction and low-temperature sintering of alumina nano-powders, Combust. Explos. Shock Waves., 2008, 44(6): 717-728.
[8] I.M. Meléndez, C. Arévalo, E. M. P. Soriano, M. Kitzmantel, E. Neubauer, Microstructural and XRD Analysis and Study of the Properties of the System Ti-TiAl-B4C Processed under Different Operational Conditions, Metals, MDPI, 2018, 8: 367-382.
[9] T. Thotsaphone, K. Katsuyoshi, I. Hisashi, U. Junko, F. Bunshi. Microstrure and mechanical properties of powder metallurgy pure titanium composite reinforced with carbon nanotubes. Trans. JWRI, 2008, 37(1): 57-61.
[10] A.D. Sharma, A.K. Sharma, N. Thakur, Crystallographic and morphological characteristics of explosively compacted copper under various detonation velocities, Phil. Mag., 2012, 92(16): 2108-2116.
[11] A.D. Sharma, A.K. Sharma, N. Thakur, Crystallographic, microstructure and mechanical characteristics of dynamically processed IN718 superalloy, J. Alloy. Comp. 2014, 597: 175–180.
[12] C.T. Wei, E. Vitali, F. Jiang; S.W. Du, D.J. Benson, K.S. Vecchio, N.N. Thadhani, M.A. Meyers, Quasi-static and dynamic response of explosively consolidated metal- aluminum powder mixtures, Acta mater. 2012, 60(2): 1418-1432.
[13] W. Salas, N. Alba- baena, L.Murr, Explosive Shock-Wave Consolidation of Aluminum Powder/Carbon Nanotube Aggregate Mixtures: Optical and Electron Metallography, metal. Mater. Trans. A, 2007, 38(12): 2928-2935.
[14] A.D. Sharma, A.K. Sharma, N. Thakur, Effect of explosive contact and non-contact processing on structure, microstructure and mechanical characteristics of aluminium., 2013, 111(3): 783-789.
