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Askaran, Mohammadreza, Malekan, Mehdi, Emamy, Massoud, Lotfpour, Mehrab. (1398). Grain refinement, Microstructural characterization, and tensile properties of die-cast AZ91 alloy via Lead and Tin additions. , 52(2), 218-228. doi: 10.22059/jufgnsm.2019.02.11
Mohammadreza Askaran; Mehdi Malekan; Massoud Emamy; Mehrab Lotfpour. "Grain refinement, Microstructural characterization, and tensile properties of die-cast AZ91 alloy via Lead and Tin additions". , 52, 2, 1398, 218-228. doi: 10.22059/jufgnsm.2019.02.11
Askaran, Mohammadreza, Malekan, Mehdi, Emamy, Massoud, Lotfpour, Mehrab. (1398). 'Grain refinement, Microstructural characterization, and tensile properties of die-cast AZ91 alloy via Lead and Tin additions', , 52(2), pp. 218-228. doi: 10.22059/jufgnsm.2019.02.11
Askaran, Mohammadreza, Malekan, Mehdi, Emamy, Massoud, Lotfpour, Mehrab. Grain refinement, Microstructural characterization, and tensile properties of die-cast AZ91 alloy via Lead and Tin additions. , 1398; 52(2): 218-228. doi: 10.22059/jufgnsm.2019.02.11

Grain refinement, Microstructural characterization, and tensile properties of die-cast AZ91 alloy via Lead and Tin additions

Journal of Ultrafine Grained and Nanostructured Materials
مقاله 11، دوره 52، شماره 2، اسفند 2019، صفحه 218-228    اصل مقاله (3.14 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/jufgnsm.2019.02.11
نویسندگان
Mohammadreza Askaran؛ Mehdi Malekan* ؛ Massoud Emamy؛ Mehrab Lotfpour
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Iran.
چکیده
Effects of different amounts of lead (Pb) and tin (Sn) on microstructure and tensile properties of the AZ91 alloy were studied. The results presented that the microstructure of AZ91 alloy is consisted the α-Mg phase and semi-continuous network of β-Mg17Al12 intermetallics. For the as-cast AZ91 alloy, the average grain siz and the β phase volume fraction were 96.2 µm and of 25.3%, respectively. By adding 1 wt.% Pb and 0.5 wt.% Sn, the lowest grain size and volume fraction values obtained. Exceeding Pb and Sn additions have been led to the increasing of the grain size. Furthermore, Sn additions formed the Mg2Sn intermetallic, while Pb additions didn’t form any obvious intermetallics. The Ultimate Tensile Strength (UTS) and tensile elongation (%El) values of the cast AZ91 alloy were 129 MPa and 2.7%, respectively. The optimum amounts of UTS and %El values were achieved by adding 1 wt.% Pb and 0.5 wt.% Sn, respectively. More Pb and Sn additions deteriorated the tensile properties. The fracture surface observations showed that fracture mode in the cast AZ91 alloy was cleavage. Moreover, 1 wt,% Pb and 0.5 wt.% Sn additions altered the fracture mode to more quasi-cleavage fracture.
کلیدواژه‌ها
AZ91 cast alloy؛ Microstructure؛ Tensile properties؛ Grain Refinement
مراجع

1. Ali Y, Qiu D, Jiang B, Pan F, Zhang M-X. Current research progress in grain refinement of cast magnesium alloys: A review article. Journal of Alloys and Compounds. 2015;619:639-51.

2. Pan F, Yang M, Chen X. A Review on Casting Magnesium Alloys: Modification of Commercial Alloys and Development of New Alloys. Journal of Materials Science & Technology. 2016;32(12):1211-21.

3. Lin H, Yang M, Tang H, Pan F. Effect of minor Sc on the microstructure and mechanical properties of AZ91 Magnesium Alloy. Progress in Natural Science: Materials International. 2018;28(1):66-73.

4. Suresh M, Srinivasan A, Ravi KR, Pillai UTS, Pai BC. Influence of boron addition on the grain refinement and mechanical properties of AZ91 Mg alloy. Materials Science and Engineering: A. 2009;525(1-2):207-10.

5. Guangyin Y, Yangshan S, Wenjiang D. Effects of bismuth and antimony additions on the microstructure and mechanical properties of AZ91 magnesium alloy. Materials Science and Engineering: A. 2001;308(1-2):38-44.

6. Zhang D, Zhang D, Bu F, Li X, Guan K, Yang Q, et al. Effects of minor Sr addition on the microstructure, mechanical properties and creep behavior of high pressure die casting AZ91-0.5RE based alloy. Materials Science and Engineering: A. 2017;693:51-9.

7. Wu G, Fan Y, Gao H, Zhai C, Zhu YP. The effect of Ca and rare earth elements on the microstructure, mechanical properties and corrosion behavior of AZ91D. Materials Science and Engineering: A. 2005;408(1-2):255-63.

8. Meshinchi Asl K, Masoudi A, Khomamizadeh F. The effect of different rare earth elements content on microstructure, mechanical and wear behavior of Mg–Al–Zn alloy. Materials Science and Engineering: A. 2010;527(7-8):2027-35.

9. Çiçek B, Sun Y. A study on the mechanical and corrosion properties of lead added magnesium alloys. Materials & Design. 2012;37:369-72.

10. Koc E. Effect of Lead Additions on Microstructure and Casting Properties of AZ91 Magnesium Alloy. International Journal of Materials Science and Applications. 2018;7(1):13.

11. Hou H, Zhu T, Wang Y, Gao WEI. EFFECT OF Sn AND Pb ADDITIONS ON MICROSTRUCTURE OF Mg-6Al-1Zn AS-CAST MAGNESIUM ALLOYS. Modern Physics Letters B. 2013;27(19):1341023.

12. Hou H, Gao W. Effects of Pb addition on microstructures and elemental distribution of AS-CAST AZ61 Mg alloy. International Journal of Modern Physics B. 2017;31(16-19):1744002.

13. Candan S, Unal M, Turkmen M, Koc E, Turen Y, Candan E. Improvement of mechanical and corrosion properties of magnesium alloy by lead addition. Materials Science and Engineering: A. 2009;501(1-2):115-8.

14. Boby A, Pillai UTS, Pai BC. Investigation on Lead and Yttrium Addition on the Microstructure and Mechanical Properties of AZ91 Magnesium Alloy. Journal of Solid Mechanics and Materials Engineering. 2013;7(2):273-80.

15. Turen Y. Effect of Sn addition on microstructure, mechanical and casting properties of AZ91 alloy. Materials & Design. 2013;49:1009-15.

16. Yang M, Pan F. Effects of Sn addition on as-cast microstructure, mechanical properties and casting fluidity of ZA84 magnesium alloy. Materials & Design. 2010;31(1):68-75.

17. Sedighi O, Shabestari SG, Yavari F. Investigation on the effect of Sn on solidification and microstructure of AZ91 magnesium alloy using cooling curve thermal analysis. Thermochimica Acta. 2018;667:165-72.

18. Mahmudi R, Moeendarbari S. Effects of Sn additions on the microstructure and impression creep behavior of AZ91 magnesium alloy. Materials Science and Engineering: A. 2013;566:30-9.

19. Ping W, Jianping L, Yongchun G, Zhong Y, Feng X, Jianli W. Effect of Sn on Microstructure and Electrochemical Properties of Mg Alloy Anode Materials. Rare Metal Materials and Engineering. 2012;41(12):2095-9.

20. G. Petzow, V. Carle, Metallographic etching, ASM International, 2nd Edition, 2008;114-7.

21. Srinivasan A, Swaminathan J, Gunjan MK, Pillai UTS, Pai BC. Effect of intermetallic phases on the creep behavior of AZ91 magnesium alloy. Materials Science and Engineering: A. 2010;527(6):1395-403.

22. Zhao M-C, Liu M, Song G, Atrens A. Influence of the β-phase morphology on the corrosion of the Mg alloy AZ91. Corrosion Science. 2008;50(7):1939-53.

23. Nayeb-Hashemi AA, Clark JB.Phase diagrams of binary magnesium alloys. ASM International, Metals Park, 1988.

24. Ohno M, Mirkovic D, Schmidfetzer R. Liquidus and solidus temperatures of Mg-rich Mg–Al–Mn–Zn alloys. Acta Materialia. 2006;54(15):3883-91.

25. StJohn DH, Easton MA, Qian M, Taylor JA. Grain Refinement of Magnesium Alloys: A Review of Recent Research, Theoretical Developments, and Their Application. Metallurgical and Materials Transactions A. 2012;44(7):2935-49.

26. Xiang Q, Wu RZ, Zhang ML. Influence of Sn on microstructure and mechanical properties of Mg–5Li–3Al–2Zn alloys. Journal of Alloys and Compounds. 2009;477(1-2):832-5.

27. Zhang D, Zhang D, Bu F, Li X, Guan K, Yang Q, et al. Effects of minor Sr addition on the microstructure, mechanical properties and creep behavior of high pressure die casting AZ91-0.5RE based alloy. Materials Science and Engineering: A. 2017;693:51-9.

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