Abstract
The idea about preparation of Re-Mo-Ti alloy is put forward because of applications of Re and Mo-Re alloys in aerospace. Basing on the thermodynamics theory, the feasibility of developing a new high temperature alloy Re-Mo-Ti is investigated. The solid solution forming enthalpies of binary alloys Re-Ti, Mo-Ti and Mo-Re are calculated with the Miedema thermodynamics theory. The Miedema theory of binary alloy can be used in ternary alloy through Kohler model or Toop model. The calculated results show that the forming enthalpies of binary alloys Re-Ti, Ti-Mo and Re-Mo are negative, which indicates that binary alloys Re-Ti, Ti-Mo and Re-Mo can form solid solution in wider component area. The forming enthalpies of Re-Mo-Ti ternary alloy are still negative and smaller than those of binary alloys Re-Ti, Ti-Mo or Re-Mo, which indicates it is possible to form large solid solution graph area among ternary alloys of Ti, Mo, Re elements. It is feasible to develop a new high temperature material in thermodynamics, in this material Re-Mo-Ti solid solution as base phase, and the Ti5Re24 intermetallic compounds or interphase ω (Ti4Mo3) as strengthening phase.
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References
Liu C G, Chen J, Han H Y, et al. A long duration and high reliability liquid apogee engine for satellites [J]. Acta Astronautica, 2004, 55(3–9): 401–408.
Stechman C, Woll P, Fuller R, et al. A high performance liquid rocket engine for satellite main propulsion [R]. Houston: American Institute of Aeronautics and Astronautics, 2000.
Leonhardt T, Hamister M, Carlen J, et al. Near net shape power metallurgy rhenium thruster [R]. Houston: American Institute of Aeronautics and Astronautics, 2000.
Harding J T, Kazaroff J M, Appel M A. Iridiumcoated rhenium thrusters by CVD [R]. Houston: American Institute of Aeronautics and Astronautics, 1998.
Boris D B. Rhenium and its alloys [J]. Advanced Material and Processes, 1992, 142(3): 22–27.
Biagglow J A. Rhenium material properties [R]. American Institute of Aeronautics and Astronautics, 1995.
Bahr M, Hoffmann G, Ludwig R, et al. New scan and control system for high power electron beam techniques [J]. Surface and Coating Technology, 1998, 22(8): 1211–1220.
Jan D, Ivan V, Martin Z. Electron gun for computer-controlled welding of small components [J]. Vacuum, 2001, 62(6): 159–164.
Steffen K, Gotz S, Andreas H, et al. Shaping of deflection figures of electron beam equipment [J]. Schweissen-Schneiden with English Translation, 1998, 50(8): 150–153.
Miedema A R, Boer F R, Boom R, et al. Cohesion in metal, transition metal alloys [M]. Amsterdam: Northhalland, 1988.
Zhang B W, Jesserr W A. Formation energy of ternary alloy systems calculated by a extended Miedema model [J]. Physics B, 2002, 315(1): 123–132.
Takeuchi A, Inoue A. Calculations of mixing enthalpy and mismatch entropy fox ternary amorphous alloys [J]. Material Transaction, 2000, 41: 1372–1375.
Massalski H, Okamoto P R. Binary alloy phase diagrams [M]. Ohio: ASM International, 1996.
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Foundation item: the Shanghai Leading Academic Discipline Project of China (No. J51402), and the Innovation Program of Shanghai Municipal Education Commission of China (No. 11ZZ177)
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Yang, Sl., Lou, Sn. Calculation on the solid solution forming enthalpies of Re-Mo-Ti gradient alloy in thermodynamics. J. Shanghai Jiaotong Univ. (Sci.) 16, 180–185 (2011). https://doi.org/10.1007/s12204-011-1114-7
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DOI: https://doi.org/10.1007/s12204-011-1114-7