Abstract
The microstructure and compressive behavior of the NiAl – 28Cr – 6Mo alloy doped with various amounts of Nb have been investigated. The results show that the microstructure of all Nb-doped alloys mainly consists of three phases, viz. the gray lamellar Cr(Mo) plate, the black NiAl matrix, and Cr2Nb with C14-structure-type 1 Laves phase semicontinuously distributed at the cell boundary. All Nb-doped alloys exhibit relatively good room-temperature compressive ductility and higher yield strength at all temperatures compared to the NiAl – 28Cr – 6Mo eutectic alloy due to the presence of Laves phase. It is found that the NiAl – 28Cr – 6Mo alloy doped with 1 at.% Nb attains the optimum concerning high temperature strength and room temperature ductility.
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The authors would like to acknowledge the National Natural Science Foundation of China (contract No. 59895152) and the National High Technology Committee of China (contract No. 863-715-005-0030) for financial supports.
References
[1] R.D. Noebe, R.R. Bowman, M.V. Nathal: Int. Mater. Rev. 38 (1993) 193.10.1179/imr.1993.38.4.193Search in Google Scholar
[2] D.B. Miracle: Acta Mater. 41 (1993) 649.10.1016/0956-7151(93)90001-9Search in Google Scholar
[3] R. Rablbauer, R. Fischer, G. Frommeyer: Z. Metallkd. 95 (2004) 525.10.3139/146.017973Search in Google Scholar
[4] G. Frommeyer, C. Derder: J. de Physique 7 (1997) 2393.Search in Google Scholar
[5] G. Frommeyer, R. Fischer, J. Deges, R. Rablbaur, A. Schneider: Ultramicroscopy 101 (2004) 139.10.1016/j.ultramic.2004.05.006Search in Google Scholar
[6] J.A. Jimenez, S. Klaus, M. Carsi, O.A. Ruano, G. Frommeyer: Acta Mater. 47 (1999) 3655.10.1016/S1359-6454(99)00218-9Search in Google Scholar
[7] G. Frommeyer, R. Rablbauer, in: MRS Symp. Conf. Proc. 753 (2003) 193.Search in Google Scholar
[8] D.R. Johnson, X.F. Chen, B.F Oliver, R.D. Noebe, J.D. Whitten-berger: Intermetallics 3 (1995) 99.10.1016/0966-9795(95)92674-OSearch in Google Scholar
[9] J.M. Yang, S.M. Jeng, K. Bain, R.A. Amato: Acta Mater. 45 (1997) 195.10.1016/S1359-6454(96)00323-0Search in Google Scholar
[10] J.T. Guo: Ordered intermetallic compound NiAl alloy, The Science Press, China (2003).Search in Google Scholar
[11] J.T. Guo, C.Y. Cui, Y.H. Qi, H.Q. Ye: J. Alloys and Comp. 343 (2002) 142.10.1016/S0925-8388(02)00205-0Search in Google Scholar
[12] K. Vedula, V. Pathare, I. Aslamidis, R.H. Titran: Mater. Res. Soc. Symp. Proc. 39 (1985) 411.10.1557/PROC-39-411Search in Google Scholar
[13] C.T. Liu, J.A. Horton: Mater. Sci. Eng A 192 (1995) 170.10.1016/0921-5093(94)03232-7Search in Google Scholar
[14] A.V. Keitz, G. Sauthoff: Intermetallics 5 (2002) 497.10.1016/S0966-9795(02)00025-0Search in Google Scholar
[15] X.F. Chen, D.R. Hohnson, B.F. Pliver: Scripta Metall. Mater. 30 (1994) 975.10.1016/0956-716X(94)90540-1Search in Google Scholar
[16] A. Sinha: Progr. Mater. Sci. 15 (1972) 79.10.1016/0079-6425(72)90002-3Search in Google Scholar
[17] F. Laves: Theory of alloy phase, Metals Park, OH, American Society for Metals (1956) 124.Search in Google Scholar
[18] B. Zeumer, G. Sauthoff: Intermetallics 6 (1998) 451.10.1016/S0966-9795(97)00094-0Search in Google Scholar
[19] B. Zeumer, G. Sauthoff: Intermetallics 5 (1997) 563.10.1016/S0966-9795(97)00031-9Search in Google Scholar
[20] D.J. Thorma, J. Perepezko: Mater. Sci. Eng A 156 (1991) 97.10.1016/0921-5093(92)90420-6Search in Google Scholar
[21] K.S. Kumar, C.T. Liu: Acta Mater. 45 (1997) 3671.10.1016/S1359-6454(97)00050-5Search in Google Scholar
[22] C.T. Liu, P.F. Tortorell, J.A. Horton, C.A. Carmichael: Mater. Sci. Eng A 214 (1996) 23.10.1016/0921-5093(96)10197-0Search in Google Scholar
[23] F. Laves, H. Witte: Metallwirtschaft 14 (1935) 645.Search in Google Scholar
[24] F. Laves, H. Witte: Metallwirtschaft 1 (1936) 840.Search in Google Scholar
[25] H. E. Cline, J.L. Walter, E.F. Osika, L.M. Osika: Acta Mater. 19 (1971) 405.10.1016/0001-6160(71)90163-5Search in Google Scholar
© 2006 Carl Hanser Verlag, München
Articles in the same Issue
- Frontmatter
- Editorial
- The Pd-rich part of the Pd–B phase diagram
- Thermodynamic optimizing of the Li–Sn system
- Thermodynamic analysis of high-temperature heazlewoodite
- Diffusion of chromium in β-Ti under high pressure
- Density and surface tension of liquid ternary Ni–Cu–Fe alloys
- Influence of electric field strength applied during the solution heat treatment of the Al–Mg–Si–Cu Alloy AA6111
- Development of cube recrystallization textures in high-purity Al
- Formation of cube recrystallized grains in high-purity Al
- Effect of various niobium additions on microstructure and mechanical behavior of a NiAl–Cr–Mo eutectic alloy
- The effect of exposure to elevated temperatures on the microstructure and hardness of Mg–Ca–Zn alloy
- Kinetics studies of hydrogen reduction of Cu2O
- Decomposition kinetics of expanded austenite with high nitrogen contents
- Estimation of the viscosity for Ag–In and In–Sb liquid alloys using different models
- Elevated temperature tensile properties of an extruded aluminium alloy reinforced with SiCp
- Richtlinien für Autoren
- Instructions for authors
- Personal/ personelles
- Press/ Presse
- Conferences /Konferenzen
- Frontmatter
- Editorial
- Editorial
- Articles Basic
- The Pd-rich part of the Pd–B phase diagram
- Thermodynamic optimizing of the Li–Sn system
- Thermodynamic analysis of high-temperature heazlewoodite
- Diffusion of chromium in β-Ti under high pressure
- Density and surface tension of liquid ternary Ni–Cu–Fe alloys
- Influence of electric field strength applied during the solution heat treatment of the Al–Mg–Si–Cu Alloy AA6111
- Articles Applied
- Development of cube recrystallization textures in high-purity Al
- Formation of cube recrystallized grains in high-purity Al
- Effect of various niobium additions on microstructure and mechanical behavior of a NiAl–Cr–Mo eutectic alloy
- The effect of exposure to elevated temperatures on the microstructure and hardness of Mg–Ca–Zn alloy
- Kinetics studies of hydrogen reduction of Cu2O
- Decomposition kinetics of expanded austenite with high nitrogen contents
- Estimation of the viscosity for Ag–In and In–Sb liquid alloys using different models
- Elevated temperature tensile properties of an extruded aluminium alloy reinforced with SiCp
- Notifications/Mitteilungen
- Richtlinien für Autoren
- Instructions for authors
- Personal/ personelles
- Press/ Presse
- Conferences /Konferenzen
Articles in the same Issue
- Frontmatter
- Editorial
- The Pd-rich part of the Pd–B phase diagram
- Thermodynamic optimizing of the Li–Sn system
- Thermodynamic analysis of high-temperature heazlewoodite
- Diffusion of chromium in β-Ti under high pressure
- Density and surface tension of liquid ternary Ni–Cu–Fe alloys
- Influence of electric field strength applied during the solution heat treatment of the Al–Mg–Si–Cu Alloy AA6111
- Development of cube recrystallization textures in high-purity Al
- Formation of cube recrystallized grains in high-purity Al
- Effect of various niobium additions on microstructure and mechanical behavior of a NiAl–Cr–Mo eutectic alloy
- The effect of exposure to elevated temperatures on the microstructure and hardness of Mg–Ca–Zn alloy
- Kinetics studies of hydrogen reduction of Cu2O
- Decomposition kinetics of expanded austenite with high nitrogen contents
- Estimation of the viscosity for Ag–In and In–Sb liquid alloys using different models
- Elevated temperature tensile properties of an extruded aluminium alloy reinforced with SiCp
- Richtlinien für Autoren
- Instructions for authors
- Personal/ personelles
- Press/ Presse
- Conferences /Konferenzen
- Frontmatter
- Editorial
- Editorial
- Articles Basic
- The Pd-rich part of the Pd–B phase diagram
- Thermodynamic optimizing of the Li–Sn system
- Thermodynamic analysis of high-temperature heazlewoodite
- Diffusion of chromium in β-Ti under high pressure
- Density and surface tension of liquid ternary Ni–Cu–Fe alloys
- Influence of electric field strength applied during the solution heat treatment of the Al–Mg–Si–Cu Alloy AA6111
- Articles Applied
- Development of cube recrystallization textures in high-purity Al
- Formation of cube recrystallized grains in high-purity Al
- Effect of various niobium additions on microstructure and mechanical behavior of a NiAl–Cr–Mo eutectic alloy
- The effect of exposure to elevated temperatures on the microstructure and hardness of Mg–Ca–Zn alloy
- Kinetics studies of hydrogen reduction of Cu2O
- Decomposition kinetics of expanded austenite with high nitrogen contents
- Estimation of the viscosity for Ag–In and In–Sb liquid alloys using different models
- Elevated temperature tensile properties of an extruded aluminium alloy reinforced with SiCp
- Notifications/Mitteilungen
- Richtlinien für Autoren
- Instructions for authors
- Personal/ personelles
- Press/ Presse
- Conferences /Konferenzen