Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter December 30, 2021

Experimental Liquidus Points and Invariant Reactions in the Cu–Zr System

Maria Helena Braga, Luis Filipe Malheiros, Fernando Castro and Delfim Soares

Abstract

In the Cu–Zr system, especially between 0.25 < x (Zr) < 1, experimental liquidus points are missing and many doubts arise concerning the invariant points. In 1986, Kneller et al. [1] pointed out the existence of three phases and two eutectoid reactions which had not yet been reported. This work has been questioned by other authors [2,3]. Differential Thermal Analysis (DTA) experiments have been done in almost the whole range of compositions of the Cu–Zr system, especially where the work of Kneller et al. [1] is ambiguous; results are compared with the previous ones.


M.H. Braga, L.F. Malheiros GMM/IMAT, DEMET, FEUP Rua dos Bragas 4099 Porto Codex, Portugal
F. Castro, D. Soares Dep. Eng. Mecânica da Universidade do Minho Campus de Azurém 4800 Guimarães, Portugal

  1. The authors would like to thank the Portuguese Science Program PRAXIS XXI for the PhD bourse (BD / 3349 / 94). The authors would like to thank Prof. José Domingos Santos for his contributions to this work. The contribution of Mr. José Soares from CINFU in the metallographic preparation of the samples is also acknowledged.

Literature

1 Kneller, E.; Khan, Y.; Gorres, U.: Z. Metallkd. 77 (1986) 43–48.Search in Google Scholar

2 Arias, D.; Abriata, J.P.: Bull. Alloy Phase Diagrams 11 (1990) 452–459.Search in Google Scholar

3 Zeng, K.-J.; Hämäläinen, M.; Lukas, H.L.: J. Phase Equilibria 15 (1994) 577–586.Search in Google Scholar

4 Lundin, C.E.; McPherson, D.J.; Hansen, M.: Trans. AIME 197 (1953) 273–278.Search in Google Scholar

5 Vitek, J.M.: Z. Metallkd. 67 (1976) 559–563.Search in Google Scholar

6 von Hillmann, G.; Hofmann, W.: Z. Metallkd. 56 (1956) 279–286.Search in Google Scholar

7 Petrescu, M.: Bull. Inst. Polytechnic “Georghe GheorghiuDej”, Bucaresti, Seria Chimie-Metalurgie 39 (1977) 79.Search in Google Scholar

8 Perry, A.J.; Hugi, W.: J. Inst. Met. 100 (1972) 378–380.Search in Google Scholar

9 Karlson, N.: J. Inst. Met. 79 (1951) 391.Search in Google Scholar

10 Gabathuler, J.P.; White, P.; Parthé, E.: Acta Cryst. B 31 (1975) 608–610.Search in Google Scholar

11 Bsenko, L.: J. Less-Common Met. 40 (1975) 365–366.Search in Google Scholar

12 Glimois, J.L.; Forey, P.; Feron, J.L.: J. Less-Common Met. 113 (213–224.Search in Google Scholar

13 Forey, P.; Glimois, J.L.; Feron, J.L.: J. Less-Common Met. 124 (21–27.Search in Google Scholar

14 Bsenko, L.: Acta Cryst. B 32 (1976) 2220–2224.Search in Google Scholar

15 Kirkpatrick, M.E.; Smith, J.F.; Larsen, W.L.: Acta Cryst. 15 (1962) 894–903.Search in Google Scholar

16 Carvalho, E.M.; Harris, I.R.: J. Mater. Sci. 15 (1980) 1224–1230.Search in Google Scholar

17 Augustson, R.N.: U. S. Atomic Energy Commission Publ., AECD- 3456 (1950) 3–46.Search in Google Scholar

18 Braga, M.H.; Ansara, I.; Malheiros, L.F.: Proceedings of CAL- PHAD XXV, Erice-Italy, 26 to 31 May, 1996.Search in Google Scholar

19 COST-507, Thermochemical Database for Light Metal Alloys Concerted Action on Materials Sciences, in: I. Ansara (ed.), European Commission DGXII Publ., (1994) 132–134.Search in Google Scholar

20 Sundman, B.; Jasson, B.; Andersson, J.O.: CALPHAD 9 (1985) 153–190.Search in Google Scholar

21 Allibone, T.E.; Sykes, C.: J. Inst. Met. 39 (1928) 173–189.Search in Google Scholar

22 Pogodin, S.A.; Shumova, I.S.; Kugucheva, F.A.: Dokl. Akad. Nauk SSSR 27 (1940) 670–672.Search in Google Scholar

23 Raub, E.; Engel, M.: Z. Metallkd. 39 (1948) 172–177.Search in Google Scholar

24 Douglass, D.L.; Morgan R.E.: Trans. Metall. Soc. AIME 215 (1959) 869–870.Search in Google Scholar

25 Saarivirta, M.J.: Trans. Metall. Soc. AIME 218 (1960) 431–437.Search in Google Scholar

26 Showak, W.: Trans. Metall. Soc. AIME 224 (1962) 1297–1298.Search in Google Scholar

27 Zwicker, U.: Metal. 16 (1962) 409–412.Search in Google Scholar

28 Donachie Jr., M.J.: J. Inst. Met. 92 (1964) 180.Search in Google Scholar

29 Kawakatsu, I.; Suzuki, H.; Kitano, H.: J. Japan. Inst. Met. 31 (1967) 1253–1257.Search in Google Scholar

30 Korol’kov, A.M.; Lysova, E.L.: Strukturai Svoistva Legk. Splavov, Nauka, Moscow (1971) 17–20.Search in Google Scholar

31 Kuznetsov, G.M.; Fedorov, V.N.; Rodnyanskaya, A.L.; Nikonova, A.V.: Sov. Non-Ferrous Met. Res. 6 (1978) 267–268.Search in Google Scholar

Received: 1998-02-19
Published Online: 2021-12-30

© 1998 Carl Hanser Verlag, München