郜清磊,贺俊光,李旭阳,文九巴

• 1:河南科技大学材料科学与工程学院
• 2:有色金属新材料与先进加工技术省部共建协同创新中心

摘要(Abstract)：

通过光学显微镜(OM)、扫描电镜(SEM)、X射线衍射仪(XRD)和能谱仪(EDS)等研究了不同固溶温度对Mg-6Al-1Zn-0.5Y-3Sm合金微观组织和耐腐蚀性能的影响，旨在优化热处理工艺以提高其耐腐蚀性能。结果表明：随着固溶温度的升高，合金的平均晶粒尺寸有所增加，合金中针状Al_(11)(Sm, Y)_3相逐渐向块状Al_2(Sm, Y)转变，降低了合金中的微电偶腐蚀，进而提高了其耐腐蚀性能；当固溶温度为420℃时，合金中第二相尺寸和分布最均匀，合金具有较好的耐腐蚀性能，质量损失腐蚀速率和析氢腐蚀速率分别为(1.81±0.12) mm/y和(1.65±0.14) mm/y。

关键词(KeyWords)： 镁合金;固溶处理;微观组织;耐腐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 河南省自然科学基金(242300420018)

作者(Author): 郜清磊,贺俊光,李旭阳,文九巴

DOI: 10.13289/j.issn.1009-6264.2024-0559

参考文献(References)：

• [1] Ling M,Mehrez S,Vignesh R V,et al.Investigation on underwater friction stir processing of AZ-61 magnesium alloy[J].Materials Today Communications,2023,36:106885.
• [2] Gneiger S,Papenberg N,Mitsche S,et al.Manufacturing and processing of sheets using a Mg-Al-Ca-Zn-Y alloy for automotive applications[J].Results in Engineering,2024,21:101700.
• [3] Putra A G,Manaf A,Prajitno D H.The effect of Ca and thixoforming process on hardness and microstructure of Mg-Al-Zn alloys[J].Journal of Materials Research and Technology,2022,19:643-652.
• [4] Li L,Nam N D.Effect of yttrium on corrosion behavior of extruded AZ61 Mg alloy[J].Journal of Magnesium and alloys,2016,4(1):44-51.
• [5] Wang L,Shinohara T,Zhang B P.Electrochemical behaviour of AZ61 magnesium alloy in dilute NaCl solutions[J].Materials & Design,2012,33:345-349.
• [6] Samaniego A,Llorente I,Feliu Jr S.Combined effect of composition and surface condition on corrosion behaviour of magnesium alloys AZ31 and AZ61[J].Corrosion Science,2013,68:66-71.
• [7] Li W,Qin W,Zhu S,et al.Revealing the influence of solution and pre-deformation treatment on the corrosion resistance of Y-modified AZ91 magnesium alloy for lithium-ion battery shell[J].Journal of Materials Research and Technology,2024,28:280-299.
• [8] Xiao W,Jia S,Wang L,et al.The microstructures and mechanical properties of cast Mg-Zn-Al-RE alloys[J].Journal of Alloys and Compounds,2009,480(2):L33-L36.
• [9] Zou Y,Qian X,Liu S,et al.Simultaneously improved mechanical properties and corrosion resistance of Mg-10.02Li-5.69Al-0.08Er alloy by solutionizing treatments[J].Journal of Alloys and Compounds,2024,1002:175188.
• [10] Pulido-González N,Hidalgo-Manrique P,García-Rodríguez S,et al.Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloys[J].Journal of Magnesium and Alloys,2022,10(2):540-554.
• [11] 邸鑫明，张正卫，许春香，等.固溶处理时间对Mg-Zn-Mn-Y合金微观组织和腐蚀性能的影响[J].材料热处理学报，2021,42(10):27-34.QIU Xin-ming,ZHANG Zheng-wei,XU Chun-xiang,et al.Effect of solution treatment time on microstructure and corrosion properties of Mg-Zn-Mn-Y alloy[J].Transactions of Materials and Heat Teratment,2021,42(10):27-34.
• [12] 李高林，文九巴，贺俊光，等.稀土Y对AZ80镁合金组织及耐蚀性能的影响[J].材料热处理学报，2012,33(3):52-56.LI Gao-lin,WEN Jiu-ba,HE Jun-guang,et al.Effect of yttrium addition on microstructure and corrosion resistance of AZ80 magnesium alloys[J].Transactions of Materials and Heat Teratment,2012,33(3):52-56.
• [13] Kwon J,Baek S M,Jung H,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.
• [14] Mingo B,Mohedano M,Blawert C,et al.Role of Ca on the corrosion resistance of Mg-9Al and Mg-9Al-0.5 Mn alloys[J].Journal of Alloys and Compounds,2019,811:151992.
• [15] Xiao W,Zhu S,Easton M A,et al.Microstructural characterization of high pressure die cast Mg-Zn-Al-RE alloys[J].Materials Characterization,2012,65:28-36.
• [16] Ke L,Feng L,Fu J,et al.Microstructure and corrosion behaviors of as-rolled Mg-Zn-Er alloy sheets[J].Transactions of Nonferrous Metals Society of China,2022,32(6):1881-1895.
• [17] Wu D G,Yan S H,Wang Z Q,et al.Effect of samarium on microstructure and corrosion resistance of aged as-cast AZ92 magnesium alloy[J].Journal of Rare Earths,2014,32(7):663-671.
• [18] Li K J,Li Q A,Jiang X T,et al.Effects of Sm addition on microstructure and mechanical properties of Mg-6Al-0.6Zn alloy[J].Scripta Materialia,2009,60(12):1101-1104.
• [19] 杨湘杰，郑彬，付亮华，等.稀土Y和Sm对AZ91D镁合金组织与性能的影响[J].材料工程，2022,50(7):139-148.YANG Xiang-jie,ZHENG Bin,FU Liang-hua,et al.Effect of Y and Sm on micorstructureand properties of AZ91D magnesiu malloy[J].Journal of Materials Engineering,2022,50(7):139-148.
• [20] Zhang J,Liu S,Leng Z,et al.Structure stability and mechanical properties of high-pressure die-cast Mg-Al-Ce-Y-based alloy[J].Transactions of Nonferrous Metals Society of China,2012,531:262-267.
• [21] Zhi H,Qun H,Hong Y,et al.Effect of trace Sm addition on microstructure and mechanical properties of AZ61 magnesium alloys[J].Rare Metal Materials and Engineering,2016,45(9):2275-2281.
• [22] Powell B R,Rezhets V,Balogh M P,et al.Microstructure and creep behavior in AE42 magnesium die-casting alloy[J].JOM,2002,54:34-38.
• [23] Zhu S M,Gibson M A,Nie J F,et al.Microstructural analysis of the creep resistance of die-cast Mg-4Al-2RE alloy[J].Scripta Materialia,2008,58(6):477-480.
• [24] Zhang J,Yu P,Liu K,et al.Effect of substituting cerium-rich mischmetal with lanthanum on microstructure and mechanical properties of die-cast Mg-Al-RE alloys[J].Materials & Design,2009,30(7):2372-2378.
• [25] Chang L,Jing G,Su X.Effect of Y on microstructure evolution and mechanical properties of Mg-4Li-3Al alloys[J].Transactions of Nonferrous Metals Society of China,2021,31(12):3691-3702.
• [26] Chen X,Zou Q,Le Q,et al.Two distinct roles of Al2Sm and Al11Sm3 phases on the corrosion behavior of the magnesium alloy Mg-5Sm-xAl[J].Progress in Natural Science:Materials International,2021,31(4):599-608.
• [27] Li X,Hu Z,Yan H,et al.Effect of Sm-rich phase on corrosion behavior of hot-extruded AZ31-1.5 Sm magnesium alloy[J].Journal of Materials Engineering and Performance,2018,27:3072-3082.
• [28] 李美栓，钱余海，辛丽.合金上氧化物的体积比的分析[J].腐蚀科学与防护技术，1999,11(5):284-289.LI Mei-shuan,QIAN Yu-hai,XIN Li.Analysis of the volume ratio of oxides on alloys[J].Corrosion Science and Protection Technology,1999,11(5):284-289.
• [29] Xu C,Gao W.Pilling-Bedworth ratio for oxidation of alloys[J].Material Research Innovations,2000,3:231-235.
• [30] Peng X,Sun J,Liu H,et al.Microstructure and corrosion behavior of as-homogenized and as-extruded Mg-xLi-3Al-2Zn-0.5Y alloys (x= 4,8,12)[J].Transactions of Nonferrous Metals Society of China,2022,32(1):134-146.

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