Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-28T06:00:20.077Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of mold temperature on microstructure and mechanical properties of rheo-squeeze casting Mg–3Nd–0.2Zn–0.4Zr alloy

Published online by Cambridge University Press:  24 October 2017

Yushi Chen ,
Guohua Wu ,
Wencai Liu ,
Liang Zhang  and
Quan Wang
Yushi Chen
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, 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, Shanghai Jiao Tong University, Shanghai 200240, China
Wencai Liu
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and Key State Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai 200240, China; and Shanghai Light Alloy Net Forming National Engineering Research Center Co., Ltd., Shanghai 201615, China
Liang Zhang
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
Quan Wang
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
*
a) Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

The effect of mold temperature on microstructure and mechanical properties of a rheo-squeeze casting (RSC) Mg–3Nd–0.2Zn–0.4Zr (NZ30K) alloy were investigated. The results indicated that the rise of mold temperature contributed to the increase of particle size and alloy density and the decrease of dislocation density. The rapid coarsening and then the normal growth of the particles during solution treatment were observed, and the long-rod-like Zn2Zr3 phase occurred. After age treatment, rod-like β′ precipitate was found in the conventional squeeze casting (CSC) alloy, while two types of precipitates including β′ phase and small plate-like β″ phase were observed in the RSC alloy. The amount of Zn2Zr3 phase was increased with rising mold temperature. Compared with the T6-treated CSC sample, the T6-treated RSC sample presented higher mechanical properties due to the larger precipitation strengthening contribution, and the yield strength, ultimate tensile strength, and elongation were up to 160 MPa, 296 MPa, and 7.7%.

Keywords

Mgalloycasting
Type
Articles
Information
Journal of Materials Research , Volume 32 , Issue 22 , 28 November 2017 , pp. 4206 - 4218
Check for updates
Copyright
Copyright © Materials Research Society 2017 

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).CrossRefGoogle 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. 1 (2017).Google Scholar
Bamberger, M., Atiya, G., Khawaled, S., and Katsman, A.: Comparison study of microstructure and phase evolution in Mg–Nd-and Mg–Gd-based alloys. Metall. Mater. Trans. A 45, 3241 (2014).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–0.2Zn 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).CrossRefGoogle 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).Google 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).CrossRefGoogle 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).CrossRefGoogle 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).CrossRefGoogle 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).CrossRefGoogle 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).CrossRefGoogle Scholar
Yang, Y.L., Peng, L.M., Fu, P.H., Hu, B., Ding, W.J., and Yu, B.Z.: Effects of process parameters on the macrostructure of a squeeze-cast Mg–2.5 mass% Nd alloy. Mater. Trans. 50, 2820 (2009).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
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 Met. 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).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).Google Scholar
Yan, D., Tasan, C.C., and Raabe, D.: High resolution in situ mapping of microstrain and microstructure evolution reveals damage resistance criteria in dual phase steels. Acta Mater. 96, 399 (2015).CrossRefGoogle Scholar
Jiang, J., Yang, J., Zhang, T., Zou, J., Wang, Y., Dunne, F.P.E., and Britton, T.B.: Microstructurally sensitive crack nucleation around inclusions in powder metallurgy nickel-based superalloys. Acta Mater. 117, 333 (2015).Google Scholar
Huang, H.J., Chen, T.J., Ma, Y., and Hao, Y.: Microstructural evolution during solution treatment of thixoformed AM60B Mg alloy. Trans. Nonferrous Met. Soc. China 21, 745 (2011).CrossRefGoogle Scholar
Zheng, X.W., Luo, A.A., Dong, J., Sachdev, A.K., and Ding, W.J.: Plastic flow behavior of a high-strength magnesium alloy NZ30K. Mater. Sci. Eng., A 532, 616 (2012).CrossRefGoogle Scholar
Cheng, F.L., Chen, T.J., Qi, Y.S., Zhang, S.Q., and Yao, P.: Effects of solution treatment in microstructure and mechanical properties of thixoformed Mg2Sip/AM60B composites. J. Alloys Compd. 636, 48 (2015).CrossRefGoogle Scholar
Wang, Y., Liu, G., and Fan, Z.: Microstructural evolution of rheo-diecast AZ91D magnesium alloy during heat treatment. Acta Mater. 54, 689 (2006).CrossRefGoogle 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).CrossRefGoogle Scholar
Nie, J.F.: Precipitation and hardening in magnesium alloys. Metall. Mater. Trans. A 43, 3891 (2012).Google Scholar
Ma, L., Mishra, R.K., Balogh, M.P., Peng, L.M., Luo, A.A., Sachdev, A.K., and Ding, W.J.: Effect of Zn on the microstructure evolution of extruded Mg–3Nd (–Zn)–Zr (wt%) alloys. Mater. Sci. Eng., A 543, 12 (2012).Google Scholar
Toda-Caraballo, I., Galindo-Nava, E.I., and Rivera-Díaz-del-Castillo, P.E.J.: Understanding the factors influencing yield strength on Mg alloys. Acta Mater. 75, 287 (2014).Google Scholar
Fleischer, R.L.: Substitutional solution hardening. Acta Metall. Mater. 11, 203 (1963).CrossRefGoogle Scholar
Labusch, R.: A statistical theory of solid solution hardening. Phys. Status Solidi B 41, 659 (1970).Google 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).CrossRefGoogle Scholar
Suzuki, M., Kimura, T., Koike, J., and Maruyama, K.: Strengthening effect of Zn in heat resistant Mg–Y–Zn solid solution alloys. Scr. Mater. 48, 997 (2003).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 (2011).CrossRefGoogle Scholar