Evaluación del comportamiento mecánico de la aleación con memoria de forma Cu-Zn-Al con adiciones de Boro y Hierro y tratadas térmicamente

Kenneth K. Alaneme; Eloho A. Okotete; Ayoyemi Oluwafemi; Usen Inyang

doi:10.3989/revmetalm.151

Authors

Kenneth K. Alaneme Department of Metallurgical and Materials Engineering, Federal University of Technology https://orcid.org/0000-0002-1582-4702
Eloho A. Okotete Department of Metallurgical and Materials Engineering, Federal University of Technology https://orcid.org/0000-0003-4825-4424
Ayoyemi Oluwafemi Department of Metallurgical and Materials Engineering, Federal University of Technology https://orcid.org/0000-0002-6841-7262
Usen Inyang Department of Metallurgical and Materials Engineering, Federal University of Technology https://orcid.org/0000-0002-2707-1904

DOI:

https://doi.org/10.3989/revmetalm.151

Keywords:

CuZnAl, Martensite stabilization, Microalloying additions, Shape memory alloys, Transformation hysteresis, Thermal ageing

Abstract

The mechanical properties of unmodified, and 0.05 wt.% B and Fe modified CuZnAl alloys produced following liquid metallurgy route was investigated. The alloys were subjected to thermal ageing treatments at 200 °C and 450 °C; while mechanical testing and light microscopy were used for assessing the alloy response to the treatment. The results show that Microstructures with different structural features were observed in the unmodified-, and B, Fe modified- Cu–Zn–Al alloys, both in the unaged and aged conditions. The hardness of the unmodified Cu–Zn–Al alloy and the B modified Cu-Zn-Al alloys increased significantly with ageing at 200 °C and 450 °C, while the Fe modified Cu-Zn-Al alloy only exhibited marginal changes in hardness with thermal ageing treatment. Also, the ultimate tensile strength of the unmodified CuZnAl alloy was the most sensitive to ageing treatment performed at 200 °C, as UTS increase as high as 18.5% was compared to the 6.8 and 6.1% increases obtained for the Fe and B modified CuZnAl alloy compositions. The percent elongation of all the CuZnAl alloy compositions improved significantly with ageing treatment with peak values obtained when ageing is performed at 200 °C. It was opined that the generally marginal changes in the mechanical properties of the modified CuZnAl alloy compositions on ageing was due to the stabilizing effect of the B and Fe modifiers on the CuZn primary phase, which curtailed to some extent the tendency for precipitation of secondary phases.

Downloads

Download data is not yet available.

References

Abid Ali, A.K. (2010). Effect of aging and step -quenched heat treatment on the Martensitic transformation of CuZnAl shape memory alloy. The Iraqi J. Mech. Mater. Eng. 10 (1), 134-142.

Alaneme, K.K., Okotete, E.A. (2016). Reconciling viability and cost-effective shape memory alloy options - A review of copper and iron based shape memory metallic systems. Eng. Sci. Technol. Int. J. 19 (3), 1582-1592. https://doi.org/10.1016/j.jestch.2016.05.010

Alaneme, K.K., Okotete, E.A., Maledi, N. (2017). Phase Characterization and mechanical behaviour of Fe-B modified Cu-Zn-Al shape memory alloys. J. Mater. Res. Technol. 6 (2), 136-146. https://doi.org/10.1016/j.jmrt.2016.10.003

Amini, R., Mousavizad, S.M., Abdollahpour, H., Ghaffari, M., Alizadeh, M., Okyay, A.K. (2013). Structural and microstructural phase evolution during mechano-synthesis of nanocrystalline/amorphous CuAlMn alloy powders. Adv. Powder Technol. 24 (6), 1048-1053. https://doi.org/10.1016/j.apt.2013.03.005

ASTM E8/E8M-15a (2015). Standard Test Methods for Tension Testing of Metallic Materials, ASTM International, West Conshohocken, PA.

ASTM E18-16 (2016). Standard Test Methods for Rockwell Hardness of Metallic Materials, ASTM International, West Conshohocken, PA.

Babacan, N., Atli, K.C., Turkbas, O.S., Karaman, I., Kockar, B. (2017). The effect of dynamic aging on the cyclic stability of Cu73Al16Mn11 shape memory alloy. Mat. Sci. Eng. A 701, 352-358. https://doi.org/10.1016/j.msea.2017.06.104

Balo, S.N., Sel, N., Aydogdu, A. (2009). The Effect of Ageing on the Martensitic Phase Transformation in CuAlBe Shape Memory Alloy. Turk. J. Sci. Technol. 4 (2), 103-109.

Bhuniya, A.K., Chattopadhyay, P.P., Datta, S., Banerjee, M.K. (2005). On the degradation of shape memory effect in trace Ti-added Cu-Zn-Al alloy. Mat. Sci. Eng. A 393 (1-2), 125-132. https://doi.org/10.1016/j.msea.2004.09.068

Bujoreanu, L.G., Lohan, N.M., Pricop, B., Cimpoe?u, N. (2011). Thermal memory degradation in a Cu-Zn-Al shape memory alloy during thermal cycling with free air cooling. J. Mater. Eng. Perform. 20 (3), 468-475. https://doi.org/10.1007/s11665-010-9702-5

Dar, R.D., Yan, H., Chen, Y. (2016). Grain boundary engineering of Co-Ni-Al, Cu-Zn-Al, and Cu-Al-Ni shape memory alloys by intergranular precipitation of a ductile solid solution phase. Scripta Mater. 115, 113-117. https://doi.org/10.1016/j.scriptamat.2016.01.014

Dasgupta, R. (2014). A look into Cu-based shape memory alloys: Present scenario and future prospects. J. Mater. Res. 29 (16), 1681-1698. https://doi.org/10.1557/jmr.2014.189

Dasgupta, R., Jain, A.K., Kumar, P., Hussain, S., Pandey, A. (2015). Role of alloying additions on the properties of Cu-Al-Mn shape memory alloys. J. Alloys Compd. 620, 60-66. https://doi.org/10.1016/j.jallcom.2014.09.047

de Castro Bubani, F., Lovey, F.C., Sade, M.L. (2017). A short review on the interaction of precipitates and martensitic transitions in Cu-Zn-Al shape memory alloys. Funct. Mater. Lett. 10 (1), 1740006 (8 pages). https://doi.org/10.1142/S1793604717400069

Kumar, P., Jain, A.K., Hussain, S., Pandey, A., Dasgupta, R. (2015). Changes in the properties of Cu-Al-Mn shape memory alloy due to quaternary addition of different elements. Matéria-Brazil 20 (1), 284-292. https://doi.org/10.1590/S1517-707620150001.0028

Lopez-Ferreño, I., Breczewski, T., Ruiz-Larrea, I., Lopez-Echarri, A., Nó, M.L., San Juan, J. (2013). Thermal treatments and transformation behaviour of Cu-Al-Be shape memory alloys. J. Alloys Compd. 577, S463-S467. https://doi.org/10.1016/j.jallcom.2012.02.006

Pons, J., Portier, R. (1997). Accommodation of ?-phase precipitates in Cu-Zn -Al shape memory alloys studied by high resolution electron microscopy. Acta Mater. 45 (5), 2109-2120. https://doi.org/10.1016/S1359-6454(96)00305-9

Sari, U., Kirindi, T., Ozcan, F., Dikici, M. (2011). Effects of aging on the microstructure of a Cu-Al-Ni-Mn shape memory alloy. Int. J. Min. Met. Mater. 18 (4) 430-436. https://doi.org/10.1007/s12613-011-0458-1

Saud, S.N., Hamzah, E., Abubakar, T., Bakhsheshi-Rad, H.R., Farahany, S., Abdolahi, A., Taheri, M.M. (2014). Influence of Silver nanoparticles addition on the phase transformation, mechanical properties and corrosion behaviour of Cu-Al-Ni shape memory alloys. J. Alloys Compd. 612, 471-478. https://doi.org/10.1016/j.jallcom.2014.05.173

Saud, S.N., Hamzah, E., Abubakar, T., Bakhsheshi-Rad, H.R. (2015). Thermal aging behavior in Cu-Al-Ni-xCo shape memory alloys. J. Therm. Anal. Calorim. 119 (2), 1273-1284. https://doi.org/10.1007/s10973-014-4265-6

Shivasiddaramiah, A.G., Mallik, U.S., Devaraju, S., Prashantha, S. (2016). Synthesis and evaluation of ageing effect on Cu-Al-Be-Mn quaternary Shape Memory Alloys. Persp. Sci. 8, 113-116. https://doi.org/10.1016/j.pisc.2016.04.011

Sto?i?, Z., Manasijevi?, D., Balanovi?, L., Holjevac-Grguri?, T., Stamenkovi?, U., Premovi?, M., Mini?, D., Gorgievski, M., Todorovi? R. (2017). Effects of Composition and Thermal Treatment of Cu-Al-Zn Alloys with Low Content of Al on their Shape-memory Properties. Mater. Res. 20 (5), 1425-1431. https://doi.org/10.1590/1980-5373-mr-2017-0153

Suresh, N., Ramamurty, U. (2007). Effect of aging on mechanical behaviour of single crystal Cu-Al-Ni shape memory alloys. Mat. Sci. Eng. A 454-455, 492-499. https://doi.org/10.1016/j.msea.2006.11.069

Suru, M., Lohan, N., Pricop, B., Mihalache, E., Mocanu, M., Bujoreanu, L. (2016). Precipitation Effects on the Martensitic Transformation in a Cu-Al-Ni Shape Memory Alloy. J. Mater. Eng. Perform. 25 (4), 1562-1569. https://doi.org/10.1007/s11665-016-1981-z

Yang, G., Lee, J., Jang, W. (2009). Effect of grain refinement on phase transformation behavior and mechanical properties of Cu-based alloy. T. Nonferr. Metal. Soc. China 19 (4), 979-983. https://doi.org/10.1016/S1003-6326(08)60390-8

Yildiz, K., Kök, M., Da?delen, F. (2015). Cobalt addition effects on martensitic transformation and microstructural properties of high-temperature Cu-Al-Fe shape-memory alloys. J. Therm. Anal. Calorim. 120 (2), 1227-1232. https://doi.org/10.1007/s10973-015-4395-5