Sn对Mg-5Zn-2.5Al合金微观组织与性能的影响

doi:10.3976/j.issn.1002-4026.2022.01.008

Abstract

Abstract:

In this study,the effects of different Sn contents on the microstructures and mechanical properties of Mg-5Zn-2.5Al-xSn(x=0, 1, 2, 3, 4) (ZAT52x) alloys were investigated. Curves of the mass fraction of liquid versus temperature during solidification of Mg-5Zn-2.5Al-xSn (x=0, 2, 4) (ZAT52x) were calculated using the Thermo-Calc software. It is found that α-Mg, Mg₂Sn (not precipitated when x=0), φ-Mg₂₁(Zn,Al)₁₇, τ-Mg₃₂(Zn,Al)₄₉, and MgZn precipitate in sequence during the solidification of ZAT52x magnesium alloy. As the Sn addition increases, the melting point of the ZAT52x alloy decreases and the amount of the second phases increases, and the tensile strength and elongation of the as-cast ZAT52x increased at first and then decreased. The as-cast ZAT522 alloy exhibits the best mechanical properties with tensile strength of 245.9 MPa and elongation of 14.4%. After extrusion, the ZAT522 alloy exhibits the highest tensile strength (376.2 MPa) and elongation (20.8%), while the ZAT524 alloy shows a more balanced mechanical property with tensile strength, yield strength, and elongation of 363.7 MPa, 260.4 MPa, and 17.9%, respectively.

Key words: Mg-Zn-Al-Sn, magnesium alloy, microstructure, deformation, mechanical property

CLC Number:

TG146.2

LI Guan-yu,LI Pei-liang,SUN Jia-xing,LIU Cong,ZHANG Su-qing,ZHOU Ji-xue,ZHAO Dong-qing,ZHUANG Hai-hua. Effects of Sn on the microstructures and properties of Mg-5Zn-2.5Al alloy[J].Shandong Science, 2022, 35(1): 56-64.

Figures/Tables 9

Table 1

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References 27

[1]	SONG J F, SHE J, CHEN D L, et al. Latest research advances on magnesium and magnesium alloys worldwide[J]. Journal of Magnesium and Alloys, 2020, 8(1):1-41. DOI: 10.1016/j.jma.2020.02.003. doi: 10.1016/j.jma.2020.02.003
[2]	KUMAR D, PHANDEN R K, THAKUR L. A review on environment friendly and lightweight Magnesium-Based metal matrix composites and alloys[J]. Materials Today: Proceedings, 2021, 38:359-364. DOI: 10.1016/j.matpr.2020.07.424. doi: 10.1016/j.matpr.2020.07.424
[3]	ZENG Z R, STANFORD N, DAVIES C H J, et al. Magnesium extrusion alloys: a review of developments and prospects[J]. International Materials Reviews, 2019, 64(1):27-62. DOI: 10.1080/09506608.2017.1421439. doi: 10.1080/09506608.2017.1421439
[4]	PAN H C, REN Y P, FU H, et al. Recent developments in rare-earth free wrought magnesium alloys having high strength: a review[J]. Journal of Alloys and Compounds, 2016, 663:321-331. DOI: 10.1016/j.jallcom.2015.12.057. doi: 10.1016/j.jallcom.2015.12.057
[5]	孙翠翠, 周吉学, 赵东清, 等. Sn对镁及镁合金显微组织和性能影响的研究现状及展望[J]. 材料导报, 2017, 31(19):60-65.DOI: 10.11896/j.issn.1005-023X.2017.019.008. doi: 10.11896/j.issn.1005-023X.2017.019.008
[6]	LIU H M, CHEN Y G, TANG Y B, et al. The microstructure, tensile properties, and creep behavior of as-cast Mg-(1-10)%Sn alloys[J]. Journal of Alloys and Compounds, 2007, 440(1/2):122-126. DOI: 10.1016/j.jallcom.2006.09.024. doi: 10.1016/j.jallcom.2006.09.024
[7]	CHENG W L, PARK S S, YOU B S, et al. Microstructure and mechanical properties of binary Mg-Sn alloys subjected to indirect extrusion[J]. Materials Science and Engineering: A, 2010, 527(18/19):4650-4653. DOI: 10.1016/j.msea.2010.03.031. doi: 10.1016/j.msea.2010.03.031
[8]	KANG D H, PARK S S, OH Y S, et al. Effect of nano-particles on the creep resistance of Mg-Sn based alloys[J]. Materials Science and Engineering: A, 2007, 449/450/451:318-321. DOI: 10.1016/j.msea.2006.02.332. doi: 10.1016/j.msea.2006.02.332
[9]	CAIN T W, GLOVER C F, SCULLY J R. The corrosion of solid solution Mg-Sn binary alloys in NaCl solutions[J]. Electrochimica Acta, 2019, 297:564-575. DOI: 10.1016/j.electacta.2018.11.118. doi: 10.1016/j.electacta.2018.11.118
[10]	潘瑜, 张殿涛, 谭雨宁, 等. 等通道挤压制备医用超细晶Mg-3Sn-0.5Mn合金及其力学性能[J]. 金属学报, 2017, 53(10):1357-1363. DOI: 10.11900/0412.1961.2017.00300. doi: 10.11900/0412.1961.2017.00300
[11]	HUANG X F, LI H J, CAI W P, et al. On the crystallographic features of Mn precipitates in a Mg-Sn-Mn alloy[J]. Journal of Alloys and Compounds, 2015, 633:54-58. DOI: 10.1016/j.jallcom.2015.02.026. doi: 10.1016/j.jallcom.2015.02.026
[12]	FANG D Q, MA N, CAI K L, et al. Age hardening behaviors, mechanical and corrosion properties of deformed Mg-Mn-Sn sheets by pre-rolled treatment[J]. Materials & Design (1980-2015), 2014, 54:72-78. DOI: 10.1016/j.matdes.2013.08.028. doi: 10.1016/j.matdes.2013.08.028
[13]	ZHAO C Y, PAN F S, PAN H C. Microstructure, mechanical and bio-corrosion properties of as-extruded Mg-Sn-Ca alloys[J]. Transactions of Nonferrous Metals Society of China, 2016, 26(6):1574-1582. DOI: 10.1016/S1003-6326(16)64232-2. doi: 10.1016/S1003-6326(16)64232-2
[14]	PAN H C, QIN G W, XU M, et al. Enhancing mechanical properties of Mg-Sn alloys by combining addition of Ca and Zn[J]. Materials & Design, 2015, 83:736-744. DOI: 10.1016/j.matdes.2015.06.032. doi: 10.1016/j.matdes.2015.06.032
[15]	ZHANG A Y, KANG R, WU L, et al. A new rare-earth-free Mg-Sn-Ca-Mn wrought alloy with ultra-high strength and good ductility[J]. Materials Science and Engineering: A, 2019, 754:269-274. DOI: 10.1016/j.msea.2019.03.095. doi: 10.1016/j.msea.2019.03.095
[16]	SHI Z Z. The crystallography of lath-shaped Mg₂Sn precipitates in a Mg-Sn-Zn-Mn alloy[J]. Journal of Alloys and Compounds, 2013, 559:158-161. DOI: 10.1016/j.jallcom.2013.01.109. doi: 10.1016/j.jallcom.2013.01.109
[17]	WANG C, LUO T J, LIU Y T, et al. Microstructure and mechanical properties of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy[J]. Materials Characterization, 2019, 147:406-413. DOI: 10.1016/j.matchar.2018.11.029. doi: 10.1016/j.matchar.2018.11.029
[18]	PARK S S, TANG W N, YOU B S. Microstructure and mechanical properties of an indirect-extruded Mg-8Sn-1Al-1Zn alloy[J]. Materials Letters, 2010, 64(1):31-34. DOI: 10.1016/j.matlet.2009.09.062. doi: 10.1016/j.matlet.2009.09.062
[19]	KIM S H, JUNG J G, YOU B S, et al. Effect of Ce addition on the microstructure and mechanical properties of extruded Mg-Sn-Al-Zn alloy[J]. Materials Science and Engineering: A, 2016, 657:406-412. DOI: 10.1016/j.msea.2016.01.073. doi: 10.1016/j.msea.2016.01.073
[20]	程鹏, 陈云贵, 丁武成, 等. 热挤压Mg-3Sn-1Zn-xCu合金的显微组织与力学性能[J]. 材料导报, 2018, 32(20):3562-3565. DOI: 10.11896/j.issn.1005-023X.2018.20.012. doi: 10.11896/j.issn.1005-023X.2018.20.012
[21]	周吉学. Mg-Sn-Zn(Al)系镁合金的组织与力学性能[D]. 北京: 中国科学院大学, 2009.
[22]	SASAKI T T, YAMAMOTO K, HONMA T, et al. A high-strength Mg-Sn-Zn-Al alloy extruded at low temperature[J]. Scripta Materialia, 2008, 59(10):1111-1114. DOI: 10.1016/j.scriptamat.2008.07.042. doi: 10.1016/j.scriptamat.2008.07.042
[23]	SASAKI T T, ELSAYED F R, NAKATA T, et al. Strong and ductile heattreatable Mg-Sn-Zn-Al wrought alloys[J]. Acta Materialia, 2015, 99:176-186. DOI: 10.1016/j.actamat.2015.06.060. doi: 10.1016/j.actamat.2015.06.060
[24]	CHEN J H, CHEN Z H, YAN H G, et al. Effects of Sn addition on microstructure and mechanical properties of Mg-Zn-Al alloys[J]. Journal of Alloys and Compounds, 2008, 461(1/2):209-215. DOI: 10.1016/j.jallcom.2007.07.066. doi: 10.1016/j.jallcom.2007.07.066
[25]	WANG B, CHEN X H, PAN F S, et al. Effects of Sn addition on microstructure and mechanical properties of Mg-Zn-Al alloys[J]. Progress in Natural Science: Materials International, 2017, 27(6):695-702. DOI: 10.1016/j.pnsc.2017.11.002. doi: 10.1016/j.pnsc.2017.11.002
[26]	赵东清, 周吉学, 刘运腾, 等. 低温挤压Mg-4Zn-2Al-2Sn合金的组织与力学性能研究[J]. 金属学报, 2014, 50(1):41-48. DOI: 10.3724/SP.J.1037.2013.00352. doi: 10.3724/SP.J.1037.2013.00352
[27]	SHI Z Z, ZHANG W Z. Investigation on the microstructure of a τ-Mg₃₂(Al, Zn)₄₉ strengthened Mg-Zn-Al alloy with relatively low Zn content[J]. Phase Transitions, 2012, 85(1/2):41-51. DOI: 10.1080/01411594.2011.586198. doi: 10.1080/01411594.2011.586198

合金	w(Zn)/%	w(Al)/%	w(Sn)/%	w(Mg)/%
ZAT520	4.97	2.51	0	剩余
ZAT521	4.96	2.52	0.98	剩余
ZAT522	5.02	2.49	2.01	剩余
ZAT523	4.99	2.52	2.97	剩余
ZAT524	5.01	2.48	3.95	剩余

合金	铸态			固溶态
合金	屈服强度/MPa	拉伸强度/MPa	伸长率/%	屈服强度/MPa	拉伸强度/MPa	伸长率/%
ZAT520	88.1	210.5	10.4	78.6	216.9	12.6
ZAT521	98.1	215.5	11.6	90.6	244.6	15.3
ZAT522	101.4	245.9	14.4	100.5	268.5	16.2
ZAT523	95.1	220.9	10.5	106.6	269.8	11.6
ZAT524	100.9	205.1	10.0	104.3	272.5	9.8

合金	屈服强度/MPa	拉伸强度/MPa	伸长率/%
ZAT520	153.7	354.3	16.2
ZAT521	155.4	373.4	19.6
ZAT522	215.2	376.2	20.8
ZAT523	249.2	361.0	19.3
ZAT524	260.4	363.7	17.9

Effects of Sn on the microstructures and properties of Mg-5Zn-2.5Al alloy

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