vol27no3pa10

TJES:  Razooqi RN, Abdulkareem OJ. Influences of Mg Addition on the Mechanical Properties of Cu-Al-Ni Shape Memory Alloys. Tikrit Journal of Engineering Sciences 2020; 27(3): 82.- 93.

APA: Razooqi, R.N, Abdulkareem, O. J. (2020). Influences of Mg Addition on the Mechanical Properties of Cu-Al-Ni Shape Memory Alloys. Tikrit Journal of Engineering Sciences, 27(3), 82.- 93.

References

1. Rao, A., A.R. Srinivasa, and J.N. Reddy, Design of shape memory alloy (SMA) actuators. Vol. 3. 2015: Springer. 2. Lagoudas, D.C., Shape memory alloys: modeling and engineering applications. 2008: Springer. 3. Chang, L. and T. Read, Plastic deformation and diffusionless phase changes in metals—The gold-cadmium beta phase. JOM, 1951. 3(1): p. 47-52. 4. Lecce, L., Shape memory alloy engineering: for aerospace, structural and biomedical applications. 2014: Elsevier.

5. Kim, J., et al., Effects on microstructure and tensile properties of a zirconium addition to a Cu-Al-Ni shape memory alloy. Metallurgical Transactions A, 1990. 21(2): p. 741-744. 6. Saud, S.N., et al., Influence of Silver nanoparticles addition on the phase transformation, mechanical properties and corrosion behaviour of Cu–Al–Ni shape memory alloys. Journal of alloys and compounds, 2014. 612: p. 471-478. 7. Saud, S.N., et al., Effect of a fourth alloying element on the microstructure and mechanical properties of Cu–Al–Ni shape memory alloys. Journal of Materials Research, 2015. 30(14): p. 2258-2269. 8. Ali, A.R.K.A., Study of Compression Behaviour of a Cu-13Al-4Ni-xCr Shape Memory Alloys Prepared by powder metallurgy process. Journal of University of Babylon, 2017. 25(1): p. 145-156. 9. Zhang, X., et al., The enhancement of the mechanical properties and the shape memory effect for the Cu-13.0Al-4.0Ni alloy by boron addition. Journal of Alloys and Compounds, 2019. 776: p. 326-333. 10. Adnan, R.S.A., Effect of Tin Addition on Shape Memory Effect and Mechanical Properties of Cu-Al-Ni Shape Memory Alloy. Engineering and Technology Journal, 2020. 38(8A): p. 1178-1186. 11. Razooqi, R.N., et al., The Physical and Mechanical Properties of a Shape Memory Alloy Reinforced with Carbon Nanotubes (CNTs). Tikrit Journal of Pure Science, 2018. 23(9): p. 80-88. 12. Berger, M.B. The importance and testing of density/porosity/permeability/pore size for refractories. in The Southern African Institute of Mining and Metallurgy Refractories Conference. 2010. 13. Standard, A., Standard test method for water absorption, bulk density, apparent porosity and apparent specific gravity for fired whiteware products. Annual Book ASTM Standard, 2006. 15: p. 112-3. 14. Lee, M., X-Ray diffraction for materials research: from fundamentals to applications. 2017: Apple Academic Press. 15. ALmohand, A., preparing (Al-B4C) composite material and study some of their mechanical properties. The Iraqi Journal for mechanical and material engineering, 2010. 10(3). 16. Chawla, K.K., Metal matrix composites. Materials science and technology, 2006.

 

Tikrit Journal of Engineering Sciences 2020. 27(3): 82.- 93.

Influences of Mg Addition on the Mechanical Properties of Cu-Al-Ni Shape Memory Alloys

 Raed N..Razooqi *, Omar J. Abdulkareem  

Department of Mechanical Engineering / Collage of Engineering / Tikrit University / Tikrit, Iraq

* Corresponding author: omaralkaylany@tu.edu.iq  

DOI: http://dx.doi.org/10.25130/tjes.27.3.10

Abstract

Shape Memory Alloys (SMAs) are a unique class of material that possesses unconventional properties such as the shape\\\’s memory effect, the high flexibility associated with damping capabilities, high wear resistance and fatigue. Given its use in a variety of technological applications, its studies have attracted increased interest in the community of scientists and researchers during the past decades. The shape memory alloy (Cu 83%-Al 13%-Ni 4%) and the other alloy with adding the alloying elements (Mg) with content of (0.25, 0.5, 0.75, 1.0, 1.25) % as a volumetric ratio which was taken from the copper percentage were prepared by powder metallurgy, The powders were mixed using (V-type) powders mixer with mixing speed and time (20 rpm), (16 min) respectively then the samples were pressed by a two-way press (floating die) and pressing pressure (500 MPa) then the green samples where sintered by using vacuum furnace with using Argon gas medium at a temperature (900°C) for one hour and left in the oven to cool down to room temperature. The results showed that both bulk density and apparent density compared to the base alloy increase by increasing the volumetric fraction of Mg by the ratios (5.49)% compared to the bulk density of the base alloy and by the ratios (1.51)% compared to the apparent density of the base alloy. accompanied by a decrease in the real and apparent porosity and water absorption, The results of the mechanical tests showed an increase in the hardness and diametrical compressive strength with the increase of volumetric fraction of (Mg) compared to the base alloy accompanied by a decrease in the rate of wear, The (XRD) test observes the composing phases (α(Cu4Al), β(Cu3Al), γ(Cu9Al44)) in addition to determining the transformation temperature from the Martensite to the Austenite by examining the (DSC) it was found that the Austenite initiation and finish (As), (Af) increased by adding the alloying elements (Mg).

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Keywords: Shape memory alloys, SMAs, Magnesium, Cu-Al-Ni, Mechanical properties, Copper based

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