EFFECT OF Y ON THE MECHANICAL PROPERTIES AND CORROSION RESISTANCE OF AS-EXTRUDED Mg-4Sn ALLOYS
Keywords:
Mg-Sn alloy, alloying, mechanical properties, corrosive properties
Abstract
In this study, the effects of Y element on the microstructure, mechanical properties and corrosion resistance of an extruded T4 alloy at room temperature were studied by comparing the as-extruded Mg-4Sn (T4) and Mg-4Sn-1Y (TW41) alloys. The results showed that the second phase of the as-extruded T4 alloy is mainly the Mg2Sn phase, while the ternary MgSnY and Mg2Sn phases mainly precipitate after the addition of Y element. Incomplete dynamic recrystallization of the two alloys occurs during the extrusion process, and the addition of Y element can promote dynamic recrystallization and refinement of the grains in T4 alloy. At room temperature, TW41 alloy has higher strength compared to T4 alloy, with tensile and yield strengths of 228 MPa and 165 MPa, respectively, but the elongation and corrosion resistance are reduced. Grain refinement is believed to play the key role in improving the yield strength of TW41 alloy, while the deterioration of the corrosion resistance of TW41 alloy is mainly attributed to the increase in the grain boundary density caused by grain refinement, accelerating the dissolution of the alloy anode.
References
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[3] PAN Fusheng,JIANG Bin. Development and application of plastic processing technology of magnesium alloy[J].Acta Metallurgica Sinica,2021,57(11):1362-1379.
[4] YANG Qiurong, ZENG Ying, ZHOU Mingyang, et al. Effect of trace Y (0.2%) on thermal deformation behavior of cast Mg-Sn alloy[J].Rare Metal Materials and Engineering,2019,48(07):2275-2283.
[5] Pan H, Yang C, Yang Y, et al. Ultra-fine grain size and exceptionally high strength in dilute Mg–Ca alloys achieved by conventional one-step extrusion[J]. Materials Letters, 2019, 237: 65-68.
[6] Zhang Y, Chen X, Lu Y, et al. Microstructure and mechanical properties of as-extruded Mg-Sn-Zn-Ca alloy with different extrusion ratios[J]. Transactions of Nonferrous Metals Society of China, 2018, 28(11): 2190-2198.
[7] Sadeddin O, Moazami-Goudarzi M, Nayyeri M J. Effect of hot extrusion on microstructure and mechanical properties of Mg-5Sn-xZr alloys[J]. Metals and Materials International, 2021: 1-12.
[8] ZHOU Huimin, HUANG Xuqiang, KONG Lingfei, et al. Research progress on corrosion behavior of magnesium alloys in marine atmospheric environment[J].Rare Metal Materials and Engineering,2024,53(04):1170-1180.
[9] CHEN Yawei, ZHOU Ji, LIU Yong, et al. Research progress on corrosion mechanism and regulation of magnesium alloy[J].Chinese Journal of Nonferrous Metals,2023,33(10):3152-3170.
[10] Gong C, He X, Fang D, et al. Effect of second phases on discharge properties and corrosion behaviors of the Mg-Ca-Zn anodes for primary Mg-air batteries[J]. Journal of Alloys and Compounds, 2021, 861: 158493.
[11] Xia Xianchao, Pan Yue, Yuan Xing, et al. Research progress on surface corrosion protection technology of magnesium alloy[J].Surface technology,2023,52(05):37-50+70.
[12] LI Lingjie, LI Fangjun, LEI Jinglei, et al. Research progress on the influence of alloying elements on the corrosion resistance of magnesium alloys[J].Materials Reports,2011,25(19):110-113.
[13] Ha H Y, Kang J Y, Yim C D, et al. Role of hydrogen evolution rate in determining the corrosion rate of extruded Mg–5Sn–(1–4 wt%) Zn alloys[J]. Corrosion science, 2014, 89: 275-285.
[14] Zhao C, Chen X, Pan F, et al. Effect of Sn content on strain hardening behavior of as-extruded Mg-Sn alloys[J]. Materials Science and Engineering: A, 2018, 713: 244-252.
[15] Qian X Y, Zeng Y, Jiang B, et al. Grain refinement mechanism and improved mechanical properties in Mg–Sn alloy with trace Y addition[J]. Journal of Alloys and Compounds, 2020, 820: 153122.
[16] Issa A, Saal J E, Wolverton C. Physical factors controlling the observed high-strength precipitate morphology in Mg–rare earth alloys[J]. Acta materialia, 2014, 65: 240-250.
[17] Yu X, Jiang B, Yang H, et al. High temperature oxidation behavior of Mg-Y-Sn, Mg-Y, Mg-Sn alloys and its effect on corrosion property[J]. Applied Surface Science, 2015, 353: 1013-1022.
[18] Jia Zheng, Yu Bing, Fu Li, et al. Effect of Zn on the corrosion resistance of extruded Mg-3Sn-1Ca alloy[J].Surface Technology,2023,52(04):233-242.
[19] Xiang C, Xiao Z, Ding H, et al. Compressive properties and energy absorption characteristics of extruded Mg-Al-Ca-Mn alloy at various high strain rates[J]. Materials, 2020, 14(1):87.
[20] Zhao H D, Qin G W, Ren Y P, et al. Microstructure and tensile properties of as-extruded Mg-Sn-Y alloys[J]. Transactions of Nonferrous Metals Society of China, 2010, 20: s493-s497.
[21] Ånes H W, van Helvoort A T J, Marthinsen K. Orientation dependent pinning of (sub) grains by dispersoids during recovery and recrystallization in an Al–Mn alloy[J]. Acta Materialia, 2023, 248: 118761.
[22] Meng Y , Yu J , Liu K , et al. The evolution of long-period stacking ordered phase and its effect on dynamic recrystallization in Mg-Gd-Y-Zn-Zr alloy processed by repetitive upsetting-extrusion[J]. Journal of Alloys and Compounds, 2020, 828:154454.
[23] Kwon Jaeho , Baek Soomin , Jung Hoseok , et al. Role of microalloyed Sm in enhancing the corrosion resistance of hot-rolled Mg-8Sn-1Al-1Zn alloy [J]. Corrosion Science, 2021, 185:109425.
[24] Chen W, Ma J, Cui C, et al. Texture role in the mechanical property improvement contributed by grain refinement for Mg-2.6 Nd-0.55 Zn-0.5 Zr alloy subjected to extrusion process[J]. Materials Science and Engineering: A, 2022, 831: 142185.
[25] ZHU Guijie, WANG Siqing, ZHA Min, et al. Effect of Rare Earth Element Ce on Texture and Mechanical Anisotropy of Extruded Mg-0.3Al-0.2Ca-0.5Mn Alloy Plate[J/OL].Acta Metallurgica Sinica:1-17[2024-05-28].
[26] Chai Y, Jiang B, Song J, et al. Improvement of mechanical properties and reduction of yield asymmetry of extruded Mg-Sn-Zn alloy through Ca addition[J]. Journal of Alloys and Compounds, 2019, 782: 1076-1086.
[27] Wang Q, Jiang B, Tang A, et al. Ameliorating the mechanical properties of magnesium alloy: Role of texture[J]. Materials Science and Engineering: A, 2017, 689: 395-403.
[28] Zeng R, Kainer K U, Blawert C, et al. Corrosion of an extruded magnesium alloy ZK60 component—The role of microstructural features[J]. Journal of Alloys and Compounds, 2011, 509(13): 4462-4469.
Published
2024-12-03
How to Cite
1.
Chen Q, Jia Z, Niu X, Hu A, Ji F, Liu C, Cui Q, Yu Y. EFFECT OF Y ON THE MECHANICAL PROPERTIES AND CORROSION RESISTANCE OF AS-EXTRUDED Mg-4Sn ALLOYS. MatTech [Internet]. 2024Dec.3 [cited 2026Oct.11];58(6):745–754. Available from: https://mater-tehnol.si/index.php/MatTech/article/view/1259
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