Stability of strengthened niobium alloys in long-term high-temperature loading conditions
-
Volodymyr V. Shyrokov
,
Orest S. Tcvikilevitch
Abstract
Variations in structure and heat resistance of niobium alloys after long-term loading (for up to 10 000 h) in vacuum at 1173 and 1373 K are studied. It is concluded that niobium alloys are more heat-resistant while those undergoing solid-solution hardening are more stable structurally. It is shown that long-term strength plots for niobium alloys have kinks which are to be taken into account when predicting life of structurally unstable materials.
References
1 Lessman, G.G.; Gold, R.E.: Recent Advances in Refractory Alloys for Space. III. Thermal Stability of Refractory Metal Alloys, NASA SP-245 (1970) 39.10.2172/4718480Search in Google Scholar
2 Wilcox, B.A., in: Refractory Metal Alloys Metallurgy and Technology, New York (1968) 1.10.1007/978-1-4684-9120-3_1Search in Google Scholar
3 Guard, R.W., in: Strengthening Mechanisms in Solids, Mir, Moscow, (1965) 220 [Russian translation].Search in Google Scholar
4 Armstrong, R.W.; Bechtold, G.H.; Begley R.R., in: Properties of Refractory Metals and Alloys, Mir, Moscow, (1968) 145 [Russian translation].Search in Google Scholar
5 Washborn, G., in: AS Ref. [3], pp. 57.Search in Google Scholar
6 Begley, R.R.; Bechtold, G.H.: J. Less-Common Metals 3 (1964) 1–18.10.1016/0022-5088(61)90037-6Search in Google Scholar
7 Ostermann, F.: J. Less-Common Metals 25 (1971) 234.10.1016/0022-5088(71)90136-6Search in Google Scholar
8 Maximovitch, G.G.; Liuty, E.M.; Nagirny, S.V.: Strength of Deformed Metals, Naukova Dumka, Kiev (1976) [in Russian].Search in Google Scholar
9 Maximovitch, G.G.: Micromechanical Studies of Metals and Alloys, Kiev, Naukova Dumka (1974) [in Russian].Search in Google Scholar
10 Hirsch, P.; Howie, A.; Nicholson, R.; Pashley, D.; Whelan, U.: Electron Microscopy of Thin Crystals, Mir, Moscow (1968) [Russian translation].Search in Google Scholar
11 Saltikov, S.A.: Stereometric Metallography, Metallurgia, Moscow, (1976) [in Russian].Search in Google Scholar
12 Trefilov, V.J.; Millman, Yu, V.; Firstov, S.A.: Physical Basis of Strength of Refractory Metals, Kiev, Naukova Dumka (1975) [in Russian].Search in Google Scholar
13 Bartlett, E.S.; Williams, D.N.; Ogden, H.R.; Jotte, R.J.: Trans. Met. Soc. AIME 223 (1973) 459.Search in Google Scholar
14 Oding, J.A.; Geminov, V.N.: in: Proceedings on Studies of Heat-resistant Alloys, Metallurgia, Moscow (1959) 287 [in Russian].Search in Google Scholar
15 Parshin, A.J.; Kolosov, A.E.; Marinets, T.K.; Pechnikov, J.J.: Fizika Metall. i Metalloved. 14, 2 (1962) 244 [in Russian].Search in Google Scholar
16 Pridantsev, M.V.: in: Proceedings on Studies of Heat-resistant Alloys, Academy of Sciences Press, Moscow, 3 (1958) 12 [in Russian].Search in Google Scholar
17 Khandarov, P.A.; Lukianov, A.N.; Mineeva, L.V.; Usikov, M.P.; Arakelov, A.G.: Izv. AN SSSR, Metals, 4 (1976) 108 [in Russian].Search in Google Scholar
18 Gridnev, V.N.; Meshkov, Yu.Ya.; Oshkaderov, S.P.; Trefilov, V.J.: Physical Basis of Electrothermal Strengthening of Steel, Kiev, Naukova Dumka (1973) [in Russian].Search in Google Scholar
© 2002 Carl Hanser Verlag, München
Articles in the same Issue
- Frontmatter
- Aufsätze/Articles
- Dilatometric study of the effect of soluble boron on the continuous and isothermal austenite decomposition in 0.15C–1.6Mn steel
- Use of duplex microstructures in steel for estimation of plastic deformation in high-speed machining chips
- Stability of strengthened niobium alloys in long-term high-temperature loading conditions
- Effect of rare-earth metals on the hot strength of HSLA steels
- Wear behaviour of Ni–Cr–Mo–V steel under dry sliding
- Thermodynamic calculation of the phase diagram of the Co–Nb–Ta system
- Peritectic equilibrium in Fe-Co alloys
- A thermodynamic description of the B–Co system: modeling and experiment
- Thermodynamic interpretation of thermoelectric phenomena
- Unit cell volumes of the silicon- and germanium-containing solid solutions based on the 3d bcc transition metals
- Artificial silicide barrier coatings in titanium matrix composites
- Notifications/Mitteilungen
- Personal/Personelles
- DGM Training/DGM Fortbildung
- Conferences/Konferenzen
Articles in the same Issue
- Frontmatter
- Aufsätze/Articles
- Dilatometric study of the effect of soluble boron on the continuous and isothermal austenite decomposition in 0.15C–1.6Mn steel
- Use of duplex microstructures in steel for estimation of plastic deformation in high-speed machining chips
- Stability of strengthened niobium alloys in long-term high-temperature loading conditions
- Effect of rare-earth metals on the hot strength of HSLA steels
- Wear behaviour of Ni–Cr–Mo–V steel under dry sliding
- Thermodynamic calculation of the phase diagram of the Co–Nb–Ta system
- Peritectic equilibrium in Fe-Co alloys
- A thermodynamic description of the B–Co system: modeling and experiment
- Thermodynamic interpretation of thermoelectric phenomena
- Unit cell volumes of the silicon- and germanium-containing solid solutions based on the 3d bcc transition metals
- Artificial silicide barrier coatings in titanium matrix composites
- Notifications/Mitteilungen
- Personal/Personelles
- DGM Training/DGM Fortbildung
- Conferences/Konferenzen
