AZ31镁合金的SiO<sub>2</sub>（Mg）涂层的组织及性能研究

代卫丽; 宋月红; 刘彦峰; 路遇; 王瑾; 刘凡

AZ31镁合金的SiO₂（Mg）涂层的组织及性能研究

代卫丽^1,2,
宋月红^1,2,
刘彦峰^1,2,
路遇¹,
王瑾¹,
刘凡¹

1. 商洛学院陕西省尾矿资源综合利用重点实验室, 陕西商洛 726000;
2. 商洛学院陕西省矿产资源清洁高效转化与新材料工程研究中心, 陕西商洛 726000

基金项目:

陕西省自然科学基础研究计划资助项目（2019JQ-156）；陕西省教育厅重点科研计划项目（20JS039）；陕西省教育厅重点科研计划项目（19JS026）；商洛学院博士科研项目（17SKY019和17SKY018）；商洛市高性能有色金属制备与加工技术创新团队（SK2019-75）

详细信息

作者简介:
代卫丽,女,1981年生,博士,讲师,研究方向为有色金属的制备与开发。E-mail:dweili@126.com

中图分类号: TG174.4
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出版历程
- 收稿日期: 2021-03-17
- 刊出日期: 2021-10-24

Microstructure and Performance Study on Si0₂(Mg) Coating on AZ31 Magnesium Alloy

1. Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University, Shangluo 726000, China;
2. Shaanxi Engineering Research Center for Mineral Resources Clean & Efficient Conversion and New Materials, Shangluo University, Shangluo 726000, China

摘要

摘要: 采用机械合金化的方法在AZ31镁合金表面涂覆SiO₂（Mg）涂层。通过XRD、显微硬度计、扫描电镜等测试手段对表面涂层的微观形貌结构、涂层的显微硬度进行分析，利用电化学工作站对涂覆前后的AZ31镁合金的耐蚀性能进行检测。结果表明：SiO₂涂层被成功地涂覆到AZ31镁合金表面；同时，随着球磨时间的增加，涂层的显微硬度呈增加趋势，且随着球料比的增加，显微硬度亦增加，最高达到370.6HV，较基体提高了15.2%；涂层的厚度也呈现先增加后趋于稳定的趋势，但球磨时间过长，涂层内部出现裂纹；当球料比为15：1、球磨时间为15 h时，所制备涂层厚度为148μm，涂层致密且与基体结合较好；所对应的自腐蚀电流密度较基体降低了一个数量级，对应的腐蚀电压提高了6.5%，耐腐蚀性能得到明显改善。
- AZ31镁合金 /
- 耐腐蚀性 /
- 机械合金化 /
- 涂层
Abstract: SiO₂(Mg) coating was applied on the surface of AZ31 magnesium alloy by mechanical alloying. The microstructure and microhardness of the surface coating were analyzed by XRD, microhardness tester and scanning electron microscope. The corrosion resistance of AZ31 magnesium alloy before and after being coated was tested by electrochemical workstation. The results showed that SiO₂ was successfully coated on the surface of AZ31 magnesium alloy. At the same time, with the increase of milling time and ball-to-material ratio, the microhardness increased, which could be up to 370.6 HV, 15.2% higher than that of the substrate. The thickness of the coating also showed a trend of increasing first and then stabilizing. However, if the ball milling time was too long, cracks would appear in the coating. When the ball-to-material ratio was 15:1 and the ball milling time was 15 h, the thickness of the prepared coating was 148 μm, the coating compact and the bond between the film and substrate excellent. The corresponding self-corrosion current density was reduced by 1 magnitude and the corresponding corrosion current increased by 6.5% compared with those of the substrate. The corrosion resistance was obviously improved.
- AZ31 magnesium alloy /
- corrosion resistance /
- mechanical alloying /
- coating

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参考文献(33)

[1]	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.
[2]	郭锐.我国应高度重视镁合金产业的战略地位[N].中国有色金属报, 2020-05-19(7).
[3]	屈伟平, 高崧.镁合金的特点及应用现状[J].金属世界, 2011(2):10-14.
[4]	张丁非, 彭建, 丁培道, 等.镁及镁合金的资源、应用及其发展现状[J].材料导报, 2004, 18(4):72-76.
[5]	刘丹.镁合金材料的应用及发展前景[J].科技资讯, 2012, 10(29):74.
[6]	宋光铃.镁合金腐蚀与防护[M].北京:化学工业出版社, 2006.
[7]	张玉芬.镁合金表面超疏水涂层的构建及其腐蚀行为[D].哈尔滨:哈尔滨工业大学, 2017.
[8]	LAMM S, MATSCHKAL D, GÖKEN M, et al.Impact of Mn on the precipitate structure and creep resistance of Ca containing magnesium alloys[J].Materials Science and Engineering:A, 2019, 761:137964.1-137964.9.
[9]	PENG C Y, CHEN Z Y, TIWARI M K.All-organic superhydrophobic coatings with mechanochemical robustness and liquid impalement resistance[J].Nature Materials, 2018, 17(4):355-360.
[10]	宋政伟.镁合金防腐复合涂层的制备及耐蚀性研究[D].长沙:湖南大学, 2015.
[11]	王梓名.AZ31镁合金表面三种过渡金属超疏水表面的构筑及其性能研究[D].哈尔滨:哈尔滨工程大学, 2018.
[12]	李海燕, 李志生, 张世珍, 等.镁合金的腐蚀与防护研究进展[J].腐蚀与防护, 2010, 31(11):878-881.
[13]	王喜峰, 齐公台, 蔡启舟, 等.混合稀土对AZ91镁合金在NaCl溶液中的腐蚀行为影响[J].材料开发与应用, 2002, 17(5):34-36.
[14]	尚伟, 王旭峰, 温玉清, 等.镁合金表面处理技术的研究进展[J].铸造技术, 2015, 36(12):2884-2886.
[15]	王丽, 付文, 陈砺.镁合金腐蚀防护技术研究进展[J].电镀与精饰, 2012, 34(9):20-24.
[16]	JI X J, LUAN G F, LYU J C, et al.Corrosion resistance and tunable release of ciprofloxacin-loaded multilayers on magnesium alloy:Effects of SiO₂ nanoparticles[J].Applied Surface Science, 2020, 508:145240.1-145240.11.
[17]	ZHAO Y B, ZHANG Z, SHI L Q, et al.Corrosion resistance of a self-healing multilayer film based on SiO₂ and CeO₂ nanoparticles layer-by-layer assembly on Mg alloys[J].Materials Letters, 2019, 237:14-18.
[18]	于凤梅, 杨薛军, 张科伟, 等.表面处理技术在航天材料中的应用[J].理化检验(物理分册), 2018, 54(6):411-417.
[19]	秦琴, 吴开霞, 荆志杰, 等.机械球磨涂覆技术的研究现状及应用[J].稀有金属与硬质合金, 2019, 47(3):66-69.
[20]	陈立甲, 查五生, 吴开霞, 等.机械球磨方法在表面薄膜涂层制备中的应用[J].粉末冶金技术, 2014, 32(1):64-67.
[21]	胡永志, 沈以赴, 李博, 等.机械合金化法制备Ti-Al非晶复合涂层[J].稀有金属材料与工程, 2013, 42(1):171-175.
[22]	LU Y, HAO L, TOH K, et al.Fabrication of TiO₂/Cu composite photocatalyst thin film by 2-step mechanical coating technique and its photocatalytic activity[J].Advanced Materials Research, 2011, 415-417:1942-1948.
[23]	张桂银, 查五生, 陈秀丽, 等.机械球磨技术在材料制备中的应用[J].粉末冶金技术, 2018, 36(4):315-318.
[24]	KOMAROV S V, SON S H, HAYASHI N, et al.Development of a novel method for mechanical plating using ultrasonic vibrations[J].Surface and Coatings Technology, 2007, 201(16-17):6999-7006.
[25]	LU Y, HAO L, HIRAKAWA Y, et al.Antibacterial activity of TiO₂/Ti composite photocatalyst films treated by ultrasonic cleaning[J].Advances in Materials Physics and Chemistry, 2012, 2(4):9-12.
[26]	YOSHIDA H, LU Y, NAKAYAMA H, et al.Fabrication of TiO₂ film by mechanical coating techniqueand its photocatalytic activity[J].Journal of Alloys and Compounds, 2009, 475(1-2):383-386.
[27]	沈以赴, 李永灿, 陈成, 等.Al₂O₃陶瓷表面机械合金化制备铜涂层研究[J].南京航空航天大学学报, 2012, 44(5):762-768.
[28]	ROMANKOV S, MAMAEVA A, KALOSHKIN S D, et al.Pulsed plasma treatment of Ti-Al coatings produced by mechanical alloying method[J].Materials Letters, 2007, 61(30):5288-5291.
[29]	RÉVÉSZ Á, TAKACS L.Coating metals by surface mechanical attrition treatment[J].Journal of Alloys and Compounds, 2007, 441(1-2):111-114.
[30]	TAKACS L, TOROSYAN A R.Surface mechanical alloying of an aluminum plate[J].Journal of Alloys and Compounds, 2007, 434:686-688.
[31]	MIAO H W, HUANG H, SHI Y J, et al.Effects of solution treatment before extrusion on the microstructure, mechanical properties and corrosion of Mg-Zn-Gd alloy in vitro[J].Corrosion Science, 2017, 122:90-99.
[32]	李大伟.镁合金仿生超疏水涂层的构建及耐腐蚀性研究[D].长春:吉林大学, 2019.
[33]	刘玉项.合金化对镁电化学腐蚀速率影响的研究进展[J].稀有金属材料与工程, 2021, 50(1):361-372.