[1]王 丽,顾 威,郭 荣,等.环保型无机缓蚀剂对AZ91D镁合金的缓蚀效果[J].电镀与精饰,2020,(4):18-22.[doi:10.3969/j.issn.1001-3849.2020.04.0040]
　WANG Li,GU Wei,GUO Rong,et al.Inhibition Effect of Environmental Protection Inorganic Corrosion Inhibitor on AZ91D Magnesium Alloy[J].Plating & Finishing,2020,(4):18-22.[doi:10.3969/j.issn.1001-3849.2020.04.0040]
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环保型无机缓蚀剂对AZ91D镁合金的缓蚀效果()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2020年4
页码:
18-22
栏目:
出版日期:
2020-04-15

文章信息/Info

Title:
Inhibition Effect of Environmental Protection Inorganic Corrosion Inhibitor on AZ91D Magnesium Alloy
作者:
王 丽; 顾 威; 郭 荣; 付 文
广东石油化工学院 化学工程学院，广东 茂名 525000
Author(s):
WANG Li;  GU Wei;  GUO Rong;  FU Wen
College of Chemical Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
关键词:
镁合金; 磷酸氢二钠; 四硼酸钠; 缓释剂
Keywords:
magnesium alloy disodium hydrogen phosphate sodium tetraborate corrosion inhibor
DOI:
10.3969/j.issn.1001-3849.2020.04.0040
文献标志码:
A
摘要:
本文采用微弧氧化工艺对镁合金进行预处理，然后研究了磷酸氢二钠、四硼酸钠、四硼酸钠/磷酸氢二钠等环保缓蚀剂对微弧氧化镁合金的缓蚀效果。用电子显微镜对微弧氧化样品及添加缓蚀剂浸泡样品的腐蚀形貌进行分析，用XRD对浸泡腐蚀样品表面成分进行分析。结果表明，室温下，1.2 g/L磷酸氢二钠、四硼酸钠、四硼酸钠/磷酸氢二钠的缓释率分别达到28.07%、45.41%和74.13%，四硼酸钠/磷酸氢二钠复配缓蚀剂缓释效果优于单一缓蚀剂。添加缓蚀剂样品表面形成偏硼酸镁及磷化物层，表面裂纹减少，浸泡腐蚀与电化学腐蚀结果一致。
Abstract:
In this paper, the magnesium alloys was pretreated by micro-arc oxidation process, and then the corrosion inhibition effects of environmental protection inhibitors of Na2HPO4, Na2B4O7 and Na2B4O7/Na2HPO4 on micro-arc oxidation magnesium alloys were studied. The corrosion morphology of micro-arc oxidation samples and corrosion inhibitor-impregnated samples were analyzed by electron microscopy, and the surface composition of corrosion samples was analyzed by XRD. The results showed that the slow release rates of 1.2 g/L Na2HPO4, Na2B4O7 and Na2B4O7/Na2HPO4 reached 28.07%, 45.41% and 74.13% respectively at room temperature. The corrosion inhibition effect of Na2B4O7/Na2HPO4 composite inhibitor was better than that of single inhibitor. Magnesium metaborate and phosphide layers were formed on the surface of the samples with corrosion inhibitors, and the surface cracks were reduced. The results of immersion corrosion were consistent with those of electrochemical corrosion.

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备注/Memo

备注/Memo:
收稿日期： 2019-03-28；修回日期： 2019-08-11
作者简介： 王丽（1983-），女，博士，副教授，主要从事金属腐蚀防护及其应用研究，Email：wanglihaha@126.com
通讯作者： 付文（1983-），男，博士，副教授，主要从事功能材料的制备及应用研究，Email：a449192213@163.com
基金项目： 广东省自然科学基金(2017A030310663，2018A030307018，2018A0303070003)；广东省教育厅育苗工程(702/517053)；广东省非常规能源工程技术研究中心(GF2018A005)。
更新日期/Last Update: 2020-04-10