Microhardness, microstructure and tensile behavior of an AZ31 magnesium alloy processed by high-pressure torsion
Source abstract
Abstract
An AZ31 magnesium alloy was processed by high-pressure torsion (HPT) at room temperature under an imposed pressure of 6.0 GPa. Microstructural analysis showed that the HPT processing introduced significant grain refinement with a reduction in grain size from ~35 μm in the initial annealed condition to ~110 nm after ten turns of HPT. Microhardness measurements showed that a reasonable level of hardness homogeneity was achieved across the disk processed through ten turns. The results from tensile testing demonstrated that the ultrafine-grained (UFG) AZ31 alloy processed by HPT exhibits high ductility with a maximum elongation of ~400 % at the relatively low testing temperature of 423 K. The results confirm that the UFG AZ31 magnesium alloy processed by HPT through ten turns has a strong potential for use in micro-forming applications.
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Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (81)
Show source-provided references
1. Mordike BL, Ebert T (2001) Magnesium: properties—applications—potential. Mater Sci Eng A302:37–4510.1016/S0921-5093(00)01351-4 ↗
2. Witte F (2010) The history of biodegradable magnesium implants: a review. Acta Biomater 6:1680–169210.1016/j.actbio.2010.02.028 ↗
3. Valiev RZ, Islamgaliev RK, Alexandrov IV (2000) Bulk nanostructured materials from severe plastic deformation. Prog Mater Sci 45:103–18910.1016/S0079-6425(99)00007-9 ↗
4. Valiev RZ, Estrin Y, Horita Z, Langdon TG, Zehetbauer MJ, Zhu YT (2006) Producing bulk ultrafine-grained materials by severe plastic deformation. JOM 58(4):33–3910.1007/s11837-006-0213-7 ↗
5. Langdon TG (2013) Twenty-five years of ultrafine-grained materials: achieving exceptional properties through grain refinement. Acta Mater 61:7035–705910.1016/j.actamat.2013.08.018 ↗
6. Valiev RZ, Langdon TG (2006) Principles of equal-channel angular pressing as a processing tool for grain refinement. Prog Mater Sci 51:881–98110.1016/j.pmatsci.2006.02.003 ↗
7. Zhilyaev AP, Langdon TG (2008) Using high-pressure torsion for metal processing: fundamentals and applications. Prog Mater Sci 53:893–97910.1016/j.pmatsci.2008.03.002 ↗
8. Agnew SR, Horton JA, Lillo TM, Brown DW (2004) Enhanced ductility in strongly textured magnesium produced by equal channel angular processing. Scripta Mater 50:377–38110.1016/j.scriptamat.2003.10.006 ↗
9. Kim HK, Kim WJ (2004) Microstructural instability and strength of an AZ31 Mg alloy after severe plastic deformation. Mater Sci Eng A385:300–30810.1016/S0921-5093(04)00882-2 ↗
10. Zúberová Z, Estrin Y, Lamark TT, Janeček M, Hellmig RJ, Krieger M (2007) Effect of equal channel angular pressing on the deformation behaviour of magnesium alloy AZ31 under uniaxial compression. J Mater Process Technol 184:294–29910.1016/j.jmatprotec.2006.11.098 ↗
11. Janeček M, Popov M, Krieger MG, Hellmig RJ, Estrin Y (2007) Mechanical properties and microstructure of a Mg alloy AZ31 prepared by equal-channel angular pressing. Mater Sci Eng A462:116–12010.1016/j.msea.2006.01.174 ↗
12. Kang SH, Lee YS, Lee JH (2008) Effect of grain refinement of magnesium alloy AZ31 by severe plastic deformation on material characteristics. J Mater Process Technol 201:436–44010.1016/j.jmatprotec.2007.11.305 ↗
13. Figueiredo RB, Langdon TG (2008) Developing superplasticity in a magnesium AZ31 alloy by ECAP. J Mater Sci 43:7366–7371. doi: 10.1007/s10853-008-2846-010.1007/s10853-008-2846-0 ↗
14. Figueiredo RB, Langdon TG (2009) Principles of grain refinement and superplastic flow in magnesium alloys processed by ECAP. Mater Sci Eng A501:105–11410.1016/j.msea.2008.09.058 ↗
15. Figueiredo RB, Terzi S, Langdon TG (2010) Using X-ray microtomography to evaluate cavity formation in a superplastic magnesium alloy processed by equal-channel angular pressing. Acta Mater 58:5737–574810.1016/j.actamat.2010.06.049 ↗
16. Figueiredo RB, Langdon TG (2010) Grain refinement and mechanical behavior of a magnesium alloy processed by ECAP. J Mater Sci 45:4827–4836. doi: 10.1007/s10853-010-4589-y10.1007/s10853-010-4589-y ↗
17. Figueiredo RB, Langdon TG (2012) Influence of rolling direction on flow and cavitation in a superplastic magnesium alloy processed by equal-channel angular. Mater Sci Eng A556:211–22010.1016/j.msea.2012.06.079 ↗
18. Zhilyaev AP, Nurislamova GV, Kim BK, Barό MD, Szpunar JA, Langdon TG (2002) Orientation imaging microscopy of ultrafine-grained nickel. Scripta Mater 46:575–58010.1016/S1359-6462(02)00018-0 ↗
19. Zhilyaev AP, Kim BK, Nurislamova GV, Barό MD, Szpunar JA, Langdon TG (2003) Experimental parameters influencing grain refinement and microstructural evolution during high-pressure torsion. Acta Mater 51:753–76510.1016/S1359-6454(02)00466-4 ↗
20. Wongsa-Ngam J, Kawasaki M, Langdon TG (2013) A comparison of microstructures and mechanical properties in a Cu–Zr alloy processed using different SPD techniques. J Mater Sci 48:4653–4660. doi: 10.1007/s10853-012-7072-010.1007/s10853-012-7072-0 ↗
21. Kai M, Horita Z, Langdon TG (2008) Developing grain refinement and superplasticity in a magnesium alloy processed by high-pressure torsion. Mater Sci Eng A488:117–12410.1016/j.msea.2007.12.046 ↗
22. Harai Y, Kai M, Kaneko K, Horita Z, Langdon TG (2008) Microstructural and mechanical characteristics of AZ61 magnesium alloy processed by high-pressure torsion. Mater Trans 49:76–8310.2320/matertrans.ME200718 ↗
23. Serre P, Figueiredo RB, Gao N, Langdon TG (2011) Influence of strain rate on the characteristics of a magnesium alloy processed by high-pressure torsion. Mater Sci Eng A528:3601–360810.1016/j.msea.2011.01.066 ↗
24. Figueiredo RB, Langdon TG (2011) Development of structural heterogeneities in a magnesium alloy processed by high-pressure torsion. Mater Sci Eng A528:4500–450610.1016/j.msea.2011.02.048 ↗
25. Jenei P, Gubicza J, Yoon EY, Kim HS (2012) X-ray diffraction study on the microstructure of an Mg–Zn–Y alloy consolidated by high-pressure torsion. J Alloys Compd 539:32–3510.1016/j.jallcom.2012.05.100 ↗
26. Huang Y, Figueiredo RB, Baudin T, Helbert AL, Brisset F, Langdon TG (2012) Effect of temperature on the processing of a magnesium alloy by high-pressure torsion. J Mater Sci 47:7796–7806. doi: 10.1007/s10853-012-6578-910.1007/s10853-012-6578-9 ↗
27. Huang Y, Figueiredo RB, Baudin T, Brisset F, Langdon TG (2012) Evolution of strength and homogeneity in a magnesium AZ31 alloy processed by high-pressure torsion at different temperatures. Adv Eng Mater 14:1018–102610.1002/adem.201200016 ↗
28. Torbati-Sarraf SA, Langdon TG (2014) Properties of a ZK60 magnesium alloy processed by high-pressure torsion. J Alloys Compd 613:357–36310.1016/j.jallcom.2014.06.056 ↗
29. Lee HJ, Lee SK, Jung KH, Lee GA, Ahn B, Kawasaki M, Langdon TG (2015) Evolution in hardness and texture of a ZK60A magnesium alloy processed by high-pressure torsion. Mater Sci Eng A630:90–9810.1016/j.msea.2015.02.011 ↗
30. Stráská J, Janeček M, Gubicza J, Krajňák T, Yoon EY, Kim HS (2015) Evolution of microstructure and hardness in AZ31 alloy processed by high pressure torsion. Mater Sci Eng A625:98–10610.1016/j.msea.2014.12.005 ↗
31. Lee HJ, Ahn B, Kawasaki M, Langdon TG (2015) Evolution in hardness and microstructure of ZK60A magnesium alloy processed by high-pressure torsion. J Mater Res Technol 4:18–2510.1016/j.jmrt.2014.10.015 ↗
32. Kim WJ, Sa YK (2006) Micro-extrusion of ECAP processed magnesium alloy for production of high strength magnesium micro-gears. Scripta Mater 54:1391–139510.1016/j.scriptamat.2005.11.066 ↗
33. Kang SG, Na YS, Park KY, Jeon JE, Son SC, Lee JH (2007) A study on the micro-formability of Al 5083 superplastic alloy using micro-forging method. Mater Sci Eng A 449–451:338–34210.1016/j.msea.2006.01.166 ↗
34. Geißdörfer S, Rosochowski A, Olejnik L, Engel U, Richert M (2008) Micro-extrusion of ultrafine grained copper. Int J Mater Form 1:455–45810.1007/s12289-008-0093-1 ↗
35. Qiao XG, Gao N, Moktadir Z, Kraft M, Starink MJ (2010) Fabrication of MEMS components using ultrafine-grained aluminium alloys. J Micromech Microeng 20:04502910.1088/0960-1317/20/4/045029 ↗
36. Rosochowski A, Presz W, Olejnik L, Richert M (2007) Micro-extrusion of ultra-fine grained aluminium. Int J Adv Manuf Technol 33:137–14610.1007/s00170-007-0955-6 ↗
37. Durst K, Hofmann S, Backes B, Mueller J, Göken M (2010) Microimprinting of nanocrystalline metals-Influence of microstructure and work hardening. J Mater Process Technol 210:1787–179310.1016/j.jmatprotec.2010.06.010 ↗
38. Kim WJ, Yoo SJ, Kim HK (2008) Superplastic microforming of Mg–9Al–1Zn alloy with ultrafine-grained microstructure. Scripta Mater 59:599–60210.1016/j.scriptamat.2008.05.014 ↗
39. Xu J, Guo B, Shan D, Langdon TG (2014) Micro-tensile behavior at a high temperature in an AZ31 magnesium alloy processed by ECAP. Mater Sci Forum 783–786:2726–273110.4028/www.scientific.net/MSF.783-786.2726 ↗
40. Warthi N, Ghosh P, Chokshi AH (2013) Approaching theoretical strengths by synergistic internal and external size refinement. Scripta Mater 68:225–22810.1016/j.scriptamat.2012.09.029 ↗
41. Figueiredo RB, Cetlin PR, Langdon TG (2011) Using finite element modeling to examine the flow processes in quasi-constrained high-pressure torsion. Mater Sci Eng A528:8198–820410.1016/j.msea.2011.07.040 ↗
42. Figueiredo RB, Pereira PHR, Aguilar MTP, Cetlin PR, Langdon TG (2012) Using finite element modeling to examine the temperature distribution in quasi-constrained high-pressure torsion. Acta Mater 60:3190–319810.1016/j.actamat.2012.02.027 ↗
43. Figueiredo RB, Aguilar MTP, Cetlin PR, Langdon TG (2012) Analysis of plastic flow during high-pressure torsion. J Mater Sci 47:7807–7814. doi: 10.1007/s10853-012-6506-z10.1007/s10853-012-6506-z ↗
44. Pereira PHR, Figueiredo RB, Cetlin PR, Langdon TG (2015) An examination of the elastic distortions of anvils in high-pressure torsion. Mater Sci Eng A631:201–20810.1016/j.msea.2015.02.052 ↗
45. Kawasaki M, Langdon TG (2008) The significance of strain reversals during processing by high-pressure torsion. Mater Sci Eng A498:341–34810.1016/j.msea.2008.08.021 ↗
46. Loucif A, Figueiredo RB, Kawasaki M, Baudin T, Brisset F, Chemam R, Langdon TG (2012) Effect of aging on microstructural development in an Al–Mg–Si alloy processed by high-pressure torsion. J Mater Sci 47:7815–7820. doi: 10.1007/s10853-012-6400-810.1007/s10853-012-6400-8 ↗
47. Xu C, Horita Z, Langdon TG (2007) The evolution in homogeneity in processing by high-pressure torsion. Acta Mater 55:203–21210.1016/j.actamat.2006.07.029 ↗
48. Xu C, Horita Z, Langdon TG (2008) The evolution of homogeneity in an aluminum alloy processed using high-pressure torsion. Acta Mater 56:5168–517610.1016/j.actamat.2008.06.036 ↗
49. Al-Zubaydi A, Figueiredo RB, Huang Y, Langdon TG (2013) Structural and hardness inhomogeneities in Mg-Al-Zn alloys processed by high-pressure torsion. J Mater Sci 48:4661–4670. doi: 10.1007/s10853-013-7176-110.1007/s10853-013-7176-1 ↗
50. Vrátná J, Janeček M, Čížek J, Lee DJ, Yoon EY, Kim HS (2013) Mechanical properties and microstructure evolution in ultrafine grained AZ31 alloy processed by severe plastic deformation. J Mater Sci 48:4705–4712. doi: 10.1007/s10853-013-7151-x10.1007/s10853-013-7151-x ↗
51. Langdon TG (1994) A unified approach to grain boundary sliding in creep and superplasticity. Acta Metall Mater 42:2437–244310.1016/0956-7151(94)90322-0 ↗
52. Langdon TG (2009) Seventy-five years of superplasticity: historic developments and new opportunities. J Mater Sci 44:5998–6010. doi: 10.1007/s10853-009-3780-510.1007/s10853-009-3780-5 ↗
53. Stráská J, Janeček M, Čížek J, Stráský J, Hadzima B (2014) Microstructure stability of ultra-fine grained magnesium alloy AZ31 processed by extrusion and equal-channel angular pressing (EX-ECAP). Mater Charact 94:69–7910.1016/j.matchar.2014.05.013 ↗
54. Gzyl M, Rosochowski A, Boczkal S, Olejnik L (2015) The role of microstructure and texture in controlling mechanical properties of AZ31B magnesium alloy processed by I-ECAP. Mater Sci Eng A638:20–2910.1016/j.msea.2015.04.055 ↗
55. Young JP, Askari H, Hovanski Y, Heiden MJ, Field DP (2015) Thermal microstructural stability of AZ31 magnesium after severe plastic deformation. Mater Charact 101:9–1910.1016/j.matchar.2014.12.026 ↗
56. Yamashita A, Horita Z, Langdon TG (2001) Improving the mechanical properties of magnesium and a magnesium alloy through severe plastic deformation. Mater Sci Eng A300:142–14710.1016/S0921-5093(00)01660-9 ↗
57. Cetlin PR, Aguilar MTP, Figueiredo RB, Langdon TG (2010) Avoiding cracks and inhomogeneities in billets processed by ECAP. J Mater Sci 45:4561–4570. doi: 10.1007/s10853-010-4384-910.1007/s10853-010-4384-9 ↗
58. Figueiredo RB, Cetlin PR, Langdon TG (2010) Stable and unstable flow in materials processed by equal-channel angular pressing with an emphasis on magnesium alloys. Metall Mater Trans A41A:778–78610.1007/s11661-009-0100-2 ↗
59. Horita Z, Matsubara K, Makii K, Langdon TG (2002) A two-step processing route for achieving a superplastic forming capability in dilute magnesium alloys. Scripta Mater 47:255–26010.1016/S1359-6462(02)00135-5 ↗
60. Figueiredo RB, Langdon TG (2009) Principles of grain refinement in magnesium alloys processed by equal-channel angular pressing. J Mater Sci 44:4758–4762. doi: 10.1007/s10853-009-3725-z10.1007/s10853-009-3725-z ↗
61. Xia K, Wang JT, Wu X, Chen G, Gurvan M (2005) Equal channel angular pressing of magnesium alloy AZ31. Mater Sci Eng A410–411:324–32710.1016/j.msea.2005.08.123 ↗
62. Xu C, Xia K, Langdon TG (2009) Processing of a magnesium alloy by equal-channel angular pressing using a back-pressure. Mater Sci Eng A527:205–21110.1016/j.msea.2009.07.063 ↗
63. Furui M, Kitamura H, Anada H, Langdon TG (2007) Influence of preliminary extrusion conditions on the superplastic properties of a magnesium alloy processed by ECAP. Acta Mater 55:1083–109110.1016/j.actamat.2006.09.027 ↗
64. Figueiredo RB, Cetlin PR, Langdon TG (2007) The processing of difficult-to-work alloys by ECAP with an emphasis on magnesium alloys. Acta Mater 55:4769–477910.1016/j.actamat.2007.04.043 ↗
65. Xu J, Shirooyeh M, Wongsa-Ngam J, Shan D, Guo B, Langdon TG (2013) Hardness homogeneity and micro-tensile behavior in a magnesium AZ31 alloy processed by equal-channel angular pressing. Mater Sci Eng A586:108–11410.1016/j.msea.2013.07.096 ↗
66. Kawasaki M (2014) Different models of hardness evolution in ultrafine-grained materials processed by high-pressure torsion. J Mater Sci 49:18–34. doi: 10.1007/s10853-013-7687-910.1007/s10853-013-7687-9 ↗
67. Valiev RZ, Ivanisenko YV, Rauch EF, Baudelet B (1996) Structure and deformation behaviour of Armco iron subjected to severe plastic deformation. Acta Mater 44:4705–471210.1016/S1359-6454(96)00156-5 ↗
68. Wetscher F, Vorhauer A, Stock R, Pippan R (2004) Structural refinement of low alloyed steels during severe plastic deformation. Mater Sci Eng A387–389:809–81610.1016/j.msea.2004.01.096 ↗
69. Wetscher F, Pippan R, Sturm S, Kauffmann F, Scheu C, Dehm G (2006) TEM investigations of the structural evolution in a pearlitic steel deformed by high-pressure torsion. Metall Mater Trans A 37A:1963–196810.1007/s11661-006-0138-3 ↗
70. Vorhauer A, Pippan R (2004) On the homogeneity of deformation by high pressure torsion. Scripta Mater 51:921–92510.1016/j.scriptamat.2004.04.025 ↗
71. Edalati K, Ito Y, Suehiro K, Horita Z (2009) Softening of high purity aluminum and copper processed by high pressure torsion. Int J Mater Res 100:1668–167310.3139/146.110231 ↗
72. Loucif A, Figueiredo RB, Baudin T, Brisset F, Langdon TG (2010) Microstructural evolution in an Al-6061 alloy processed by high-pressure torsion. Mater Sci Eng A527:4864–486910.1016/j.msea.2010.04.027 ↗
73. Tian YZ, Wu SD, Zhang ZF, Figueiredo RB, Gao N, Langdon TG (2011) Microstructural evolution and mechanical properties of a two-phase Cu–Ag alloy processed by high-pressure torsion to ultrahigh strains. Acta Mater 59:2783–279610.1016/j.actamat.2011.01.017 ↗
74. Sabbaghianrad S, Langdon TG (2014) A critical evaluation of the processing of an aluminum 7075 alloy using a combination of ECAP and HPT. Mater Sci Eng A596:52–5810.1016/j.msea.2013.12.034 ↗
75. Edalati K, Yamamoto A, Horita Z, Ishihara T (2011) High-pressure torsion of pure magnesium: evolution of mechanical properties, microstructures and hydrogen storage capacity with equivalent strain. Scripta Mater 64:880–88310.1016/j.scriptamat.2011.01.023 ↗
76. Edalati K, Horita Z (2011) Significance of homologous temperature in softening behavior and grain size of pure metals processed by high-pressure torsion. Mater Sci Eng A528(7514–7523):751410.1016/j.msea.2011.06.080 ↗
77. Almazrouee AI, Al-Fadhalah KJ, Alhajeri SN, Langdon TG (2015) Microstructure and microhardness of OFHC copper processed by high-pressure torsion. Mater Sci Eng A641:21–2810.1016/j.msea.2015.06.016 ↗
78. Vollertsen F, Biermann D, Hansen HN, Jawahir IS, Kuzman K (2009) Size effects in manufacturing of metallic components. CIRP Ann Manuf Technol 58:566–58710.1016/j.cirp.2009.09.002 ↗
79. Fu MW, Chan WL (2013) A review on the state-of-the-art microforming technologies. Int J Adv Manuf Technol 67:2411–243710.1007/s00170-012-4661-7 ↗
80. Xu J, Zhu X, Shi L, Shan D, Guo B, Langdon TG (2015) Micro-forming using ultrafine-grained aluminum processed by equal-channel angular pressing. Adv Eng Mater 17:1022–103310.1002/adem.201400448 ↗
81. Xu J, Wang C, Shan D, Guo B, Langdon TG (2015) Micro-deformation behavior in micro-compression with high-purity aluminum processed by ECAP. Manuf Rev 2:1–710.1051/mfreview/2015003 ↗