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Microstructures and mechanical properties of AZ91 alloys prepared by multi-pass friction stir processing

Published online by Cambridge University Press:  15 May 2018

Fang Chai ,
Fei Yan ,
Wei Wang ,
Qichen Lu  and
Xiang Fang
Fang Chai
Affiliation:
Hubei Key Laboratory of Advanced Technology (Wuhan University of Technology), Wuhan 430070, China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan 430070, China; and School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China
Fei Yan
Affiliation:
Hubei Key Laboratory of Advanced Technology (Wuhan University of Technology), Wuhan 430070, China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan 430070, China; and School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China
Wei Wang*
Affiliation:
Hubei Key Laboratory of Advanced Technology (Wuhan University of Technology), Wuhan 430070, China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan 430070, China; and School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China
Qichen Lu
Affiliation:
Hubei Key Laboratory of Advanced Technology (Wuhan University of Technology), Wuhan 430070, China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan 430070, China; and School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China
Xiang Fang
Affiliation:
Hubei Key Laboratory of Advanced Technology (Wuhan University of Technology), Wuhan 430070, China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan 430070, China; and School of Automotive Engineering, Wuhan University of Technology, Wuhan 430070, China
*
a)Address all correspondence to this author. e-mail: wei.wang@whut.edu.cn
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Abstract

AZ91 magnesium plates with a thickness of 6 mm were subjected to one- and two-pass friction stir processing (FSP). Microstructures and mechanical properties of the experimental materials were investigated. The results show that FSP can significantly refine the microstructures of magnesium alloys, and two-pass FSP can prepare slightly finer grains in comparison with one-pass FSP. Some coarse β-Mg17Al12 phases existed in the first pass FSP break and dissolve into the matrix under the action of the second pass FSP. Microhardness distribution of the two-pass FSP AZ91 alloy exhibits no too much difference with that of the one-pass FSP AZ91 alloy. Due to further finer microstructures, the tensile properties of the two-pass FSP alloy are slightly higher than those of the one-pass FSP alloy. Both FSP AZ91 alloys show typical ductile fracture characteristics, while the dimples on the two-pass FSP specimen are much deeper and increase in quantity.

Keywords

multi-pass friction stir processingAZ91 magnesium alloymicrostructuremechanical properties
Type
Article
Information
Journal of Materials Research , Volume 33 , Issue 12 , 28 June 2018 , pp. 1789 - 1796
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Copyright
Copyright © Materials Research Society 2018 

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References

REFERENCES

Fooladi, S. and Kiahosseini, S.R.: Creation and investigation of chitin/HA double-layer coatings on AZ91 magnesium alloy by dipping method. J. Mater. Res. 32, 2532 (2017).Google Scholar
Mordike, B.L. and Ebert, T.: Magnesium properties applications potential. Mater. Sci. Eng., A 302, 37 (2001).Google Scholar
Shan, H., Zhang, Y., Li, Y., and Luo, Z.: Dissimilar joining of AZ31B magnesium alloy and pure copper via thermo-compensated resistance spot welding. J. Manuf. Process. 30, 570 (2017).Google Scholar
Feng, A.H. and Ma, Z.Y.: Enhanced mechanical properties of Mg–Al–Zn cast alloy via friction stir processing. Scripta Mater. 56, 397 (2007).Google Scholar
Bryla, K., Morgiel, J., Faryna, M., Edalati, K., and Horita, Z.: Effect of high-pressure torsion on grain refinement, strength enhancement and uniform ductility of EZ magnesium alloy. Mater. Lett. 212, 323 (2018).Google Scholar
Amani, S., Faraji, G., and Abrinia, K.: Microstructure and hardness inhomogeneity of fine-grained AM60 magnesium alloy subjected to cyclic expansion extrusion (CEE). J. Manuf. Process. 28, 197 (2017).Google Scholar
Zhao, S., Guo, E., Cao, G.J., Wang, L.P., Lun, Y.C., and Feng, Y.C.: Microstructure and mechanical properties of Mg–Nd–Zn–Zr alloy processed by integrated extrusion and equal channel angular pressing. J. Alloys Compd. 705, 118 (2017).CrossRefGoogle Scholar
Schwarz, F., Eilers, C., and Krüger, L.: Mechanical properties of an AM20 magnesium alloy processed by accumulative roll-bonding. Mater. Charact. 105, 144 (2015).Google Scholar
Torbati-Sarraf, S.A. and Langdon, T.G.: Properties of a ZK60 magnesium alloy processed by high-pressure torsion. J. Alloys Compd. 613, 357 (2014).Google Scholar
Mishra, R.S. and Ma, Z.Y.: Friction stir welding and processing. Mater. Sci. Eng., R 50, 1 (2005).CrossRefGoogle Scholar
Xie, S.Y., Li, R.D., Yuan, T.C., Chen, C., Zhou, K.C., Song, B., and Shi, Y.S.: Laser cladding assisted by friction stir processing for preparation of deformed crack-free Ni–Cr–Fe coating with nanostructure. Opt. Laser Technol. 99, 374 (2018).Google Scholar
Vijayavel, P. and Balasubramanian, V.: Effect of pin profile volume ratio on microstructure and tensile properties of friction stir processed aluminum based metal matrix composites. J. Alloys Compd. 729, 828 (2017).Google Scholar
Raja, A. and Pancholi, V.: Effect of friction stir processing on tensile and fracture behavior of AZ91 alloy. J. Mater. Process. Technol. 248, 8 (2017).Google Scholar
Arora, H.S., Grewal, H.S., Singh, H., Dhindaw, B.K., and Mukherjee, S.: Enhancing the mechanical properties of AE42 magnesium alloy through friction stir processing. Adv. Eng. Mater. 16, 571 (2014).Google Scholar
Liang, J.H., Li, H.J., Qi, L.H., Tian, W.L., Li, X.F., Chao, X.J., and Wei, J.F.: Fabrication and mechanical properties of CNTs/Mg composites prepared by combining friction stir processing and ultrasonic assisted extrusion. J. Alloys Compd. 728, 282 (2017).Google Scholar
Zhang, D.T., Wang, S.X., Qiu, C., and Zhang, W.: Superplastic tensile behavior of a fine-grained AZ91 magnesium alloy prepared by friction stir processing. Mater. Sci. Eng., A 556, 100 (2012).Google Scholar
Zhang, H.J., Liu, H.J., and Yu, L.: Microstructure and mechanical properties as a function of rotation speed in underwater friction stir welded aluminum alloy joints. Mater. Des. 32, 4402 (2011).Google Scholar
Mousavizade, S.M., Pouranvari, M., Ghaini, F.M., Fujii, H., and Chung, Y.D.: Laser-assisted friction stir processing of IN738LC nickel-based superalloy: Stir zone characteristics. Sci. Technol. Weld. Join. 21, 374 (2016).Google Scholar
El-Rayes, M.M. and El-Danaf, E.A.: The influence of multi-pass friction stir processing on the microstructural and mechanical properties of aluminum alloy 6082. J. Mater. Process. Technol. 212, 1157 (2012).CrossRefGoogle Scholar
Chen, Y., Ding, H., Li, J., Cai, Z., Zhao, J., and Yang, W.: Influence of multi-pass friction stir processing on the microstructure and mechanical properties of Al-5083 alloy. Mater. Sci. Eng., A 650, 281 (2016).Google Scholar
Brown, R., Tang, W., and Reynolds, A.P.: Multi-pass friction stir welding in alloy 7050-T7451: Effects on weld response variables and on weld properties. Mater. Sci. Eng., A 513–514, 115 (2009).Google Scholar
Baruch, L.J., Raju, R., Balasubramanian, V., Rao, A.G., and Dinaharan, I.: Influence of multi-pass friction stir processing on microstructure and mechanical properties of die cast Al–7Si–3Cu aluminum alloy. Acta Metall. Sin. 29, 431 (2016).CrossRefGoogle Scholar
Asadi, P., Faraji, G., and Besharati, M.K.: Producing of AZ91/SiC composite by friction stir processing (FSP). Int. J. Adv. Manuf. Technol. 51, 247 (2010).Google Scholar
Nakata, K., Kim, Y.G., Fuji, H., Tsumura, T., and Komazaki, T.: Improvement of mechanical properties of aluminum die casting alloy by multi-pass friction stir processing. Mater. Sci. Eng., A 437, 274 (2006).CrossRefGoogle Scholar
Eftekhari, M., Movahedi, M., and Kokabi, A.H.: Microstructure, strength and wear behavior relationship in Al–Fe3O4 nanocomposite produced by multi-pass friction stir processing. J. Mater. Eng. Perform. 26, 3516 (2017).Google Scholar