Hostname: page-component-77c89778f8-n9wrp Total loading time: 0 Render date: 2024-07-23T09:07:19.410Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of pressure and aging treatment on microstructures and mechanical properties of rheo-squeeze casting Mg–3Nd–0.2Zn–0.4Zr alloy

Published online by Cambridge University Press:  15 February 2018

Yushi Chen Open the ORCID record for Yushi Chen [Opens in a new window] ,
Guohua Wu ,
Wencai Liu ,
Liang Zhang  and
Song Zhang
Yushi Chen
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Guohua Wu*
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Wencai Liu*
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Liang Zhang
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Song Zhang
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
*
a)Address all correspondence to these authors. e-mail: ghwu@sjtu.edu.cn
b)e-mail: liuwc@sjtu.edu.cn
Get access

Abstract

The influences of pressure and aging treatment on microstructures and mechanical properties of rheo-squeeze casting (RSC) Mg–3Nd–0.2Zn–0.4Zr alloys were studied. It was found that the nucleation rate, solid solubility of Nd and Zn in the α-Mg matrix, and dislocation density were increased with increasing applied pressure. After aging treatment, the amount of the Zn2Zr3 phase was increased with increasing pressure; β″ phase and β′ precipitates were observed in the RSC alloy and finer β′ precipitates formed in the permanent mold casting (PMC) alloy. The mechanical properties of as-cast alloys were initially increased and then decreased with increasing pressure, while the properties of T6-treated alloys were increased continuously. Due to the larger grain boundary strengthening contribution, the T6-treated RSC sample showed higher mechanical properties than the PMC sample, and the yield strength, ultimate tensile strength, and elongation could reach 165 MPa, 309 MPa, and 5.7%, respectively.

Keywords

Mgalloymicrostructure
Type
Articles
Information
Journal of Materials Research , Volume 33 , Issue 6 , 28 March 2018 , pp. 758 - 771
Check for updates
Copyright
Copyright © Materials Research Society 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Contributing Editor: Jürgen Eckert

References

REFERENCES

Antion, C., Donnadieu, P., Perrard, F., Deschampa, A., Tassin, C., and Pisch, A.: Hardening precipitation in a Mg–4Y–3RE alloy. Acta Mater. 51, 5335 (2003).Google Scholar
Li, Y.L., Wu, G.H., Chen, A.T., Nodooshan, H.R.J., Liu, W.C., Wang, Y.X., and Ding, W.J.: Effects of Gd and Zr additions on the microstructures and high-temperature mechanical behavior of Mg–Gd–Y–Zr magnesium alloys in the product form of a large structural casting. J. Mater. Res. 30, 3461 (2015).Google Scholar
Fu, P.H., Peng, L.M., Jiang, H.Y., Chang, J.W., and Zhai, C.Q.: Effects of heat treatments on the microstructures and mechanical properties of Mg–3Nd–0.2Zn–0.4Zr (wt%) alloy. Mater. Sci. Eng., A 486, 183 (2008).Google Scholar
Chen, Y.S., Wu, G.H., Liu, W.C., Zhang, L., Zhang, H.H., and Cui, W.D.: Effects of minor Y addition on microstructure and mechanical properties of Mg–Nd–Zn–Zr alloy. J. Mater. Res. 32, 3712 (2017).Google Scholar
Chen, Y.S., Wu, G.H., Liu, W.C., Zhang, L., and Wang, Q.: Effect of mold temperature on microstructure and mechanical properties of rheo-squeeze casting Mg–3Nd–0.2 Zn–0.4 Zr alloy. J. Mater. Res. 32, 4206 (2017).CrossRefGoogle Scholar
Fu, P.H., Peng, L.M., Jiang, H.Y., Ma, L., and Zhai, C.Q.: Chemical composition optimization of gravity cast Mg–yNd–xZn–Zr alloy. Mater. Sci. Eng., A 496, 177 (2008).Google Scholar
Sanaty-Zadeh, A., Luo, A.A., and Stone, D.S.: Comprehensive study of phase transformation in age-hardening of Mg–3Nd–0.2 Zn by means of scanning transmission electron microscopy. Acta Mater. 94, 294 (2015).Google Scholar
Qin, H., Zhao, Y.C., An, Z.Q., Cheng, M.Q., Wang, Q., Cheng, T., Wang, Q.J., Wang, J.X., Jiang, Y., Zhang, X.L., and Yuan, G.Y.: Enhanced antibacterial properties, biocompatibility, and corrosion resistance of degradable Mg–Nd–Zn–Zr alloy. Biomaterials 53, 211 (2015).Google Scholar
Li, Z.M., Fu, P.H., Peng, L.M., Wang, Y.X., and Jiang, H.Y.: Strengthening mechanisms in solution treated Mg–yNd–zZn–xZr alloy. J. Mater. Sci. 48, 6367 (2013).Google Scholar
Flemings, M.C.: Behavior of metal alloys in the semisolid state. Metall. Trans. B 22, 269 (1991).Google Scholar
Canyook, R., Wannasin, J., Wisuthmethangkul, S., and Flemings, M.C.: Characterization of the microstructure evolution of a semi-solid metal slurry during the early stages. Acta Mater. 60, 3501 (2012).Google Scholar
Xia, M., Huang, Y., Cassinath, Z., and Fan, Z.: Continuous twin screw rheo-extrusion of an AZ91D magnesium alloy. Metall. Mater. Trans. A 43, 4331 (2012).Google Scholar
Wannasin, J., Canyook, R., Wisutmethangoon, S., and Flemings, M.C.: Grain refinement behavior of an aluminum alloy by inoculation and dynamic nucleation. Acta Mater. 61, 3897 (2013).CrossRefGoogle Scholar
Zhang, Y., Wu, G.H., Liu, W.C., Zhang, L., Pang, S., and Ding, W.J.: Microstructure and mechanical properties of rheo-squeeze casting AZ91-Ca magnesium alloy prepared by gas bubbling process. Mater. Des. 67, 1 (2015).Google Scholar
Wan, J., Yan, H., and Xu, D.: Rheological study of semi-solid TiAl3/ZL101 composites prepared by ultrasonic vibration. Int. J. Mater. Res. 106, 1244 (2015).Google Scholar
Lu, S.L., Wu, S.S., Wan, L., and An, P.: Microstructure and tensile properties of wrought Al alloy 5052 produced by rheo-squeeze casting. Metall. Mater. Trans. A 44, 2735 (2013).Google Scholar
Li, Y., Zhang, Y., Bi, J., and Luo, Z.: Impact of electromagnetic stirring upon weld quality of Al/Ti dissimilar materials resistance spot welding. Mater. Des. 83, 577 (2015).Google Scholar
Wang, C.L., Chen, A.T., Zhang, L., Wu, G.H., and Ding, W.J.: Preparation of an Mg–Gd–Zn alloy semisolid slurry by low frequency electro-magnetic stirring. Mater. Des. 84, 53 (2015).Google Scholar
Chen, Y.S., Zhang, L., Liu, W.C., Wu, G.H., and Ding, W.J.: Preparation of Mg–Nd–Zn–(Zr) alloys semisolid slurry by electromagnetic stirring. Mater. Des. 95, 398 (2016).Google Scholar
Fang, X., Lü, S., Zhao, L., Wang, J., Liu, L.F., and Wu, S.S.: Microstructure and mechanical properties of a novel Mg–RE–Zn–Y alloy fabricated by rheo-squeeze casting. Mater. Des. 94, 353 (2016).Google Scholar
Guo, H.M., Zhang, S.G., Yang, X.J., Liu, X.B., and Jin, H.L.: Microstructure evolution and mechanical properties of rheo-squeeze cast Mg–9Al–1Zn alloy by experiments and thermodynamic calculation. Metall. Mater. Trans. A 46, 2134 (2015).Google Scholar
Chen, Y.S., Chen, T.J., Zhang, S.Q., and Li, P.B.: Effects of processing parameters on microstructure and mechanical properties of powder-thixoforged 6061 aluminum alloy. Trans. Nonferrous Metals Soc. China 25, 699 (2015).Google Scholar
Bindu, P. and Thomas, S.: Estimation of lattice strain in ZnO nanoparticles: X-ray peak profile analysis. J. Theor. Appl. Phys. 8, 123 (2014).Google Scholar
Li, K.J., Li, Q.A., Jing, X.T., Chen, J., Zhang, X.Y., and Zhang, Q.: Effects of Sm addition on microstructure and mechanical properties of Mg–6Al–0.6 Zn alloy. Scripta Mater. 60, 1101 (2009).Google Scholar
Suzuki, M., Kimura, T., Koike, J., and Maruyama, K.: Strengthening effect of Zn in heat resistant Mg–Y–Zn solid solution alloys. Scripta Mater. 48, 997 (2003).Google Scholar
Liu, S.J., Yang, G.Y., Luo, S.F., and Jie, W.Q.: Microstructure evolution during heat treatment and mechanical properties of Mg–2.49Nd–1.82Gd–0.19Zn–0.4Zr cast alloy. Mater. Charact. 107, 334 (2015).Google Scholar
Li, H.Z., Lv, F., Liang, X.P., Qi, Y.L., Zhu, Z.X., and Zhang, K.L.: Effect of heat treatment on microstructures and mechanical properties of a cast Mg–Y–Nd–Zr alloy. Mater. Sci. Eng., A 667, 409 (2016).Google Scholar
Yang, Y.L., Peng, L.M., Fu, P.H., Hu, B., and Ding, W.J.: Study on microstructure of squeeze casting AZ91D alloy. Mater. Sci. Technol. 27, 189 (2014).Google Scholar
Pan, M.X., Yao, Y.S., Zhuang, Y.X., and Wang, W.H.: Pressure-controlled nucleation and growth in Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass close to and beyond glass transition temperature. Phys. Lett. A 303, 229 (2002).CrossRefGoogle Scholar
Kleppa, O.J.: Ultrasonic velocities of sound in some metallic liquids. Adiabatic and isothermal compressibilities of liquid metals at their melting points. J. Chem. Phys. 18, 1331 (1950).CrossRefGoogle Scholar
Yamane, T., Mori, N., Minamino, Y., Miyamoto, Y., Koizumi, M., and Takahashi, T.: Effect of high pressure on interdiffusion in Cu–Zn alloys at temperatures near the melting point. Mater. Trans. A 19, 467 (1988).Google Scholar
Gale, W.F. and Totemeier, T.C.: Smithells Metals Reference Book (Butterworth-Heinemann, Boston, 2003).Google Scholar
Hafner, J.: Structure and thermodynamics of liquid metals and alloys. Phys. Rev. A 16, 351 (1977).Google Scholar
Paliwal, M., Das, S.K., Kim, J., and Jung, I.H.: Diffusion of Nd in hcp Mg and interdiffusion coefficients in Mg–Nd system. Scripta Mater. 108, 11 (2015).Google Scholar
Zhang, S.Q., Chen, T.J., Cheng, F.L., and Li, L.L.: Effects of mould temperature on microstructure and tensile properties of thixoforged Mg2Sip/AM60B in situ composites. J. Alloys Compd. 657, 582 (2016).Google Scholar
Chen, T.J., Huang, L.K., Huang, X.F., Ma, Y., and Hao, Y.: Effects of mould temperature and grain refiner amount on microstructure and tensile properties of thixoforged AZ63 magnesium alloy. J. Alloys Compd. 556, 167 (2013).CrossRefGoogle Scholar
Tang, C.P., Liu, W.H., Chen, Y.Q., Liu, X., and Deng, Y.L.: Effects of thermal treatment on microstructure and mechanical properties of a Mg–Gd-based alloy plate. Mater. Sci. Eng., A 659, 63 (2016).CrossRefGoogle Scholar
Bailey, J.E. and Hirsch, P.B.: The dislocation distribution, flow stress, and stored energy in cold-worked polycrystalline silver. Philos. Mag. 5, 485 (1960).Google Scholar
Cáceres, C.H. and Lukáč, P.: Strain hardening behaviour and the Taylor factor of pure magnesium. Philos. Mag. 88, 977 (2008).Google Scholar