Abstract
To provide a basic guide for the design of Cu–Cr-based alloys, phase equilibrium relations in the Cu–Cr–Ti system have been studied using diffusion triples and typical equilibrated alloys. Based on the results from electron-probe microscopy analysis and x-ray diffraction, isothermal sections of the Cu–Cr–Ti ternary system at 1073 and 973 K were constructed, wherein 9 and 11 three-phase equilibria were determined, respectively. A ternary phase with an approximate composition of (Cu, Cr)4Ti3 was detected and named as τ1. The binary Cu4Ti3 phase does not connect with τ1 in the ternary region. Solid solution phases (Cu, Cr)3Ti2 and τ1 were identified and confirmed in both diffusion triple and alloy samples. The solubility of Cr in Cu3Ti2 extends to 12 at.% at both 1073 and 973 K. (Cu, Cr)3Ti2 and Cu3Ti2 form a continuous solid solution at 1073 K while do not exist as one stable phase at 973 K. In addition, two two-phase regions of Cu4Ti + (Cu, Cr)3Ti2 and Cu4Ti3 + (Cu, Cr)3Ti2 transform to the three-phase regions of Cu4Ti + Cu4Ti3 + (Cu, Cr)3Ti2 as the temperature decreases from 1073 to 973 K.
Similar content being viewed by others
References
S.V. Dobatkin, J. Gubicza, D.V. Shangina, N.R. Bochvar, and N.Y. Tabachkova, High Strength and Good Electrical Conductivity in Cu–Cr Alloys Processed by Severe Plastic Deformation, Mater. Lett., 2015, 153, p 5–9.
Y.H. Chen, S.B. Ren, Y. Zhao, and X.H. Qu, Microstructure and Properties of CuCr Alloy Manufactured by Selective Laser Melting, J. Alloys Compd., 2019, 786, p 189–197.
J.H. You, Copper Matrix Composites as Heat Sink Materials for Water-Cooled Divertor Targe, Nucl. Mater. Energy, 2015, 5, p 7–18.
Q. Liu, X. Zhang, Y. Ge, J. Wang, and J.Z. Cui, Effect of Processing and Heat Treatment on Behavior of Cu–Cr–Zr Alloys to Railway Contact Wire, Metall. Mater. Trans. A, 2006, 37, p 3244–3238.
S.X. Xiu, R. Yang, J. Xue, J.X. Wang, and J.Y. Wang, Microstructure and Properties of CuCr Contact Materials with Different Cr Content, Trans. Nonferrous Met. Soc. China, 2011, 21, p s389–s393.
H. Okamoto, Cr–Cu (Chromium–Copper), J. Phase Equilib., 2001, 22, p 691–692.
U. Holzwarth, and H. Stamm, The Precipitation Behaviour of ITER-grade Cu–Cr–Zr Alloy After Simulating the Therma Cycle of Hot Isostatic Pressing, J. Nucl. Mater., 2000, 279, p 31–45.
A. Vinogradov, V. Patlan, Y. Suzuki, K. Kitagawa, and V.I. Kopylov, Structure and Properties of Ultra-Fine Grain Cu–Cr–Zr Alloy Produced by Equal-Channel Angular Pressing, Acta Mater., 2002, 50, p 1639–1651.
J.B. Zhang, Y. Liu, W. Cai, and H. Wang, Morphology of Precipitates in Cu–Cr–Ti Alloys: Spherical or Cubic?, J. Electron. Mater., 2016, 45, p 4726–4729.
P. Zhang, J. Jie, Y. Gao, H. Li, T.M. Wang, and T.J. Li, Influence of Cold Deformation and Ti Element on the Microstructure and Properties of Cu–Cr System Alloys, J. Mater. Res., 2015, 30(13), p 2073–2080.
R. Markandeya, S. Nagarjuna, and D.S. Sarma, Precipitation Hardening of Cu–Ti–Cr Alloys, Mater. Sci. Eng. A, 2004, 371(1–2), p 291–305.
D.J. Chakrabarti, and D.E. Laughlin, The Cr–Cu (Chromium–Copper) System, Bull. Alloy Phase Diagr., 1984, 5(1), p 59–68.
K.J. Zeng, and M. Hämäläinen, Thermodynamic Analysis of Stable and Metastable Equilibria in the Cu–Cr System, Calphad, 1995, 19, p 93–104.
K.T. Jacob, S. Priya, and Y. Waseda, A thermodynamic Study of Liquid Cu–Cr Alloys and Metastable Liquid Immiscibility, Z. Metallkd., 2000, 91, p 594–600.
M.P. Leonov, N.R. Bochvar, and V.G. Ivanchenko, Chromium–Copper Phase Diagram, Dokl. Akad. Nauk SSSR, 1986, 290, p 888–890. , in Russian
Z.M. Zhou, J. Gao, F. Li, and Y.P. Wang, Experimental Determination and Thermodynamic Modeling of Phase Equilibria in the Cu–Cr System, J. Mater. Sci., 2011, 46(21), p 7039–7045.
S.L. Cui, and I.-H. Jung, Thermodynamic Modeling of the Cu–Fe–Cr and Cu–Fe–Mn Systems, Calphad, 2017, 56, p 241–259.
Y.L. Liu, P. Zhou, S.H. Liu, C. Zhang, Y. Du, and J. Wang, Experimental Investigation and Thermodynamic Description of the Cu–Cr–Zr System, Calphad, 2017, 59, p 1–11.
J.L. Murray, The Cu–Ti (Copper–Titanium) System, Bull. Alloys Phase Diag., 1983, 4(1), p 81–95.
L. Kaufman, Coupled Phase Diagrams and Thermochemical Data for Transition Metal Binary Systems-VI, Calphad, 1979, 3(1), p 45–76.
N. Saunders, Phase Diagram Calculations for Eight Glass Forming Alloy Systems, Calphad, 1985, 9(4), p 297–309.
K.C.H. Kumar, I. Ansara, P. Wollants, and L. Delaey, Thermodynamic Optimisation of the Cu–Ti System, Z. Metallkd., 1996, 87, p 666–672.
C. Colinet, A. Pasturel, and K. Buschow, Enthalpies of Formation of Ti–Cu Intermetallic and Amorphous Phases, J. Alloys. Compd., 1997, 247, p 15–19.
J. Wang, C. Liu, C. Leinenbach, U.E. Klotz, P.J. Uggowitzer, and J.F. Löffler, Experimental Investigation and Thermodynamic Assessment of the Cu–Sn–Ti Ternary System, Calphad, 2011, 35(1), p 82–94.
J.L. Murray, The Cr–Ti (Chromium–Titanium) System, Bull. Alloys Phase Diagr., 1981, 2(2), p 174–181.
S. Gupta, and K. Gupta, Phase Equilibria at the High Mn End of the Mn–Ti–V and Mn–Ti–Cr Systems, Trans. Indian Inst. Met, 1976, 29, p 36–41.
R.H. Ericksen, R. Taggart, and D.H. Polonis, The Martensite Transformation in Ti–Cr Binary Alloys, Acta Metall., 1969, 17(5), p 553–564.
F.B. Cuff, N.J. Grant, and C.F. Floe, Titanium-Chromium Phase Diagram, JOM, 1952, 4(8), p 848–853.
F. Stein, M. Palm, and G. Sauthoff, Structure and Stability of Laves Phases Part II—Structure Type Variations in Binary and Ternary Systems, Intermetallics, 2005, 13(10), p 1056–1074.
J. Pavlů, J. Vřešt’ál, and M. Šob, Thermodynamic Modeling of Laves Phases in the Cr–Hf and Cr–Ti Systems: Reassessment Using First-Principles Results, Calphad, 2010, 34(2), p 215–221.
P. Villars, Pearson’s Handbook of Crystallograhic Data for Intermetallic Phases. ASM International, 1997.
D.M. Cupid, M.J. Kriegel, O. Fabrichnaya, F. Ebrahimi, and H.J. Seifert, Thermodynamic Assessment of the Cr–Ti and First Assessment of the Al–Cr–Ti Systems, Intermetallics, 2011, 19(8), p 1222–1235.
J.C. Zhao, Reliability of the Diffusion-Multiple Approach for Phase Diagram Mapping, J. Mater. Sci., 2004, 39, p 3913–3925.
Y. Zhong, H.S. Liu, G.M. Cai, and Z.P. Jin, Experimental Study on Phase Equilibria in Ti–Cu–Pt System, J. Phase Equilib. Diffus., 2017, 38(4), p 466–476.
G.N. Hermana, H.M. Hsiao, P.C. Kuo, P.K. Liaw, Y.C. Li, S. Iikubo, and Y.W. Yen, Phase Equilibria of the Cu–Zr–Ti Ternary System at 703 °C And the Thermodynamic Assessment and Metallic Glass Region Prediction of the Cu–Zr–Ti Ternary System, J. Non-Cryst. Solids, 2021, 551, p 120387.
L.L. Zhu, C.D. Wei, L. Jiang, Z.P. Jin, and J.C. Zhao, Experimental Determination of the Phase Diagrams of the Co–Ni–X (X = W, Mo, Nb, Ta) Ternary Systems Using Diffusion Multiples, Intermetallics, 2018, 93, p 20–29.
P.G. Qin, H. Wang, L.G. Zhang, H.S. Liu, and Z.P. Jin, The Isothermal Section of the Cu–Ti–Zr System at 1023 K Measured with Diffusion-Triple Approach, Mater. Sci. Eng. A, 2008, 476, p 83–88.
G.N. Hermana, H.M. Hsiao, P.C. Kuo, P.K. Liaw, Y.C. Li, S. Likubo, and Y.W. Yen, Phase Equilibria of the Cu–Zr–Ti Ternary System at 703 °C and the Thermodynamic Assessment and Metallic Glass Region Prediction of the Cu–Zr–Ti Ternary System, J. Non-Cryst. Solids, 2021, 551, p 120387.
Y.M. Wang, H.S. Liu, Q. Chen, F. Zheng, and Z.P. Jin, The Isothermal Section at 923 K of the Co–Cu–Ti Ternary System Measured by Using Diffusion Triple, J. Alloy Compd., 2007, 439, p p196-200.
J.L. Liu, X.M. Huang, G.H. Li, G.M. Cai, H.S. Liu, and Z.P. Jin, Experimental Investigation on Phase Equilibria of Cu–Ti–Hf System and Performance of Cu(Ti, Hf)2 Phase, J. Mater. Sci., 2018, 53(10), p 7809–7821.
Acknowledgments
The work was supported by grants from the National MCF Energy R&D Program of China (No. 2018YFE0306100) and the National Key Research and Development Plan (No. 2016YFB0701301). Lilong Zhu acknowledges the financial support from the Taishan Scholars Program of Shandong Province (No. tsqn201909081).
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Supplementary Information
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Li, J.H., Huang, X.M., Zhu, L.L. et al. Experimental Investigation of Phase Equilibria in the Cu–Cr–Ti System. J. Phase Equilib. Diffus. 42, 389–402 (2021). https://doi.org/10.1007/s11669-021-00892-y
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11669-021-00892-y