Abstract
Alloys of tungsten 20% manganese 17% titanium and tungsten 18% manganese 17% chromium (at%) were prepared by mechanical alloying and sintering from 1225 to 1425°C. The microstructures were examined by XRD and SEM/EDS. In the titanium-containing alloy, XRD patterns revealed peaks related to TiN and MnTi2O4. In the chromium-containing alloy, peaks related to a chromium-rich phase and MnCr2O4 were observed. SEM backscattered images of the titanium-containing alloys depicted two distinct phases: a tungsten-rich phase and a manganese-titanium oxide. The addition of titanium increased the solubility of manganese in the tungsten-rich phase, compared to tungsten-manganese alloys, to 6.3 at% Mn with 3.9 at% Ti after sintering at 1275°C for 30 min. Alternatively, the addition of chromium produced no significant improvement in the solubility of manganese; however, the solubility measurements were more consistent. Although the microstructural constituents of both alloys underwent grain growth at higher sintering temperatures, the microstructure remained relatively fine.
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References
L.S. Magness, and T.G. Fairand, “Deformation Behavior and Its Relationship to the Penetration Performance of High-Density KE Penetrators Materials”, Proc. of the 17th Army Science Conference, 1990, June 12–15, Vol. II, 465–479.
R.C. Batra, “Effect of Material Parameters on the Initiation and Growth of Adiabatic Shear Bands”, Int J Sol Struct, 23 (10) (1978), 1435–1446.
A. Bose, R. Sadangi, and R.M. German, “A Review on Alloying in Tungsten Heavy Alloys”, in Supplemental Proceedings: Vol. 1: Materials Processing and Interfaces, TMS (The Minerals, Metals & Materials Society, 2012) 455–465.
O. Elsebaie, K.M. Jaansalu, “Initial Study of a Novel Tungsten-35at% Manganese Alloy by Mechanical Alloying Technique”, Annual meeting Supplemental Proceedings TMS (The Minerals, Metals & Materials Society), San Antonio, TX, March 4–8, 2013, pp 1129–1136.
S.V. Nagender Naidu and P. Rama Rao, “The Manganese-Tungsten-System”, J Alloy Phase Diag, 2 (1) (1986), 38–39.
Y. Bai, B. Dodd, Adiabatic Shear Localization Occurrence, Theories and Applications, (2002) 24–53.
J.L. Murray, ed., Metals Handbook: Phase Diagrams of Binary Titanium Alloys, (Metals Park, OH: American Society for Metals, May 1990) 159–168.
The Cr-Mn (Chromium – Manganese) System, Bull. Alloy Phase Diagrams, 2 (1) (1981), 104–105.
Powder diffraction file, Alphabetic indexes inorganic phases, International Centre for Diffraction Data, 2011.
Z.S. Basinski, J.W. Christian, “A Pressurized High-Temperature Debye-Scherrer Camera, and Its Use to Determine the Structures and Coefficients of Expansion of γ– and δ–Manganese”, Proc Royal Soc, 1954, 20 May, 223A (1155), 554–560.
H.P. Klug, L.W. Alexander, X-ray Diffraction Procedures, (John Wiley, New York, 1954), 91.
Y. Huang, Z. Yang, and Y. Zhang, “Magnetic, transport, thermal properties and orbital stat for spinel MnTi2O4”, Journal of Magnetism and Magnetic. Mater, 324 (2012), 2075–2081.
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Elsebaie, O.S., Jaansalu, K.M. (2015). Effect of Titanium and Chromium on the Microstructure of Tungsten-Manganese Alloys Prepared by Mechanical Alloying. In: TMS 2015 144th Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48127-2_182
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DOI: https://doi.org/10.1007/978-3-319-48127-2_182
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