Abstract
Cu–15%Ni–8%Sn alloy was prepared by continuous unidirectional solidification (CUS) processing and the as-cast CUS Cu–15%Ni–8%Sn alloy was homogenized. The evolution of microstructure and composition distribution of as-cast and annealed CUS Cu–15%Ni–8%Sn alloy was analyzed. The results show that the microstructure of as-cast CUS Cu–15%Ni–8%Sn is mainly composed of coarse columnar grains and there exist segregation phenomenon in the grain boundaries. After annealing at temperature of 850°C for 30 min, it was found that the composition of the alloy began to become uniform and the solutes gathered at the grain boundaries diffused into the columnar grains.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Deyong L, Elboujdaïni M, Tremblay R, Ghali E (1990) Electrochemical behaviour of rapidly solidified and conventionally cast Cu–Ni–Sn alloys. J Appl Electrochem 20:756–762
Alili B, Bradai D, Zieba P (2008) On the discontinuous precipitation reaction and solute redistribution in a Cu–15%Ni–8%Sn alloy. Mater Charact 59:1526–1530
Wang Y, Wang M, Hong B (2005) Microstructures of spinodal phase in Cu–15Ni–8Sn alloy. J Univ Sci Technol Beijing 12(3):243–247
Zhao JC, Notis MR (1998) Spinodal Decomposition, ordering transformation, and discontinuous precipitation in a Cu–15Ni–8Sn alloy. Acta Mater 46(12):4203–4218
Ouyang Y, Gan X, Zhang S, Li Z, Zhou K, Jiang Y, Zhang X (2017) Age-hardening behavior and microstructure of Cu−15Ni−8Sn−0.3Nb alloy prepared by powder metallurgy and hot extrusion. Trans Nonferrous Met Soc China 27:1947–1955
Motoyasu G, Soda H, McLean A, Shimizu T (1997) Al–CuAl2 eutectic structure in unidirectionally solidified rods by the Ohno continuous casting process. J Mater Sci Lett 16:566–568
Ozawa S, Motegi T, Kuribayashi K (2004) Unidirectional solidification of aluminum–indium monotectic alloys by Ohno continuous casting. Mater Trans 45(2):353–356
Okayasu M, Takeuchi S (2014) Mechanical strength and failure characteristics of cast Mg–9%Al–1%Zn alloys produced by a heated-mold continuous casting process: Fatigue properties. Mater Sci Eng, A 600:211–220
Okayasu M, Yoshie S (2010) Mechanical properties of Al–Si13–Ni1.4–Mg1.4–Cu1 alloys produced by the Ohno continuous casting process. Mater Sci Eng, A 527:3120–3126
Wang Y, Huang HY, Xie JX (2011) Enhanced roofm-temperature tensile ductility of columnar-grained polycrystalline Cu–12 wt. %Al alloy through texture control by Ohno continuous casting process. Mater Lett 65(7):1123–1126
Virtanen P, Tiainen T, Lepisto T (1998) Precipitation at faceting grain boundaries of Cu–Ni–Sn alloys. Mater Sci Eng, A 251:269–275
Luo JH (2018) Formation mechanism of surface segregation in heated mold continuous casting Al–Cu alloy. Light Metals 2018:435–439
Acknowledgements
This work was supported by the project of Yangtze Normal University (2017KYQD130).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 The Minerals, Metals & Materials Society
About this paper
Cite this paper
Luo, J.H., Li, Q., Chen, Y.H., Liu, S., Wen, Q.Y., Ding, H.M. (2019). Effect of Heat Treatment on Microstructure of Continuous Unidirectional Solidified Cu–Ni–Sn Alloy. In: Lambotte, G., Lee, J., Allanore, A., Wagstaff, S. (eds) Materials Processing Fundamentals 2019. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05728-2_15
Download citation
DOI: https://doi.org/10.1007/978-3-030-05728-2_15
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-05727-5
Online ISBN: 978-3-030-05728-2
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)