The corrosion behavior of Mg–Nd binary alloys in the harsh marine environment
文献类型：CNKI期刊论文
| 作者 | Quantong Jiang; Dongzhu Lu; Ning Wang; Xiutong Wang; Jie Zhang ; Jizhou Duan; Baorong Hou
|
| 发表日期 | 2021-01-15 |
| 出处 | Journal of Magnesium and Alloys
 |
| 关键词 | Magnesium alloy Corrosion South China sea environment |
| 英文摘要 | The corrosion behavior of Mg-Nd binary alloys in the harsh South China Sea environment was researched by scanning electron microscopy,energy-dispersive spectrometry and X-ray diffraction analysis. In order to explain the corrosion mechanism, corrosion resistance was analyzed by weight loss rate and electrochemical measurement in the laboratory. With a continuous enlargement of Nd-content, Mg_(12) Nd phases increased and multiplied. The weight loss rate of Mg-0.5 Nd alloy was 0.0436 mg·cm~(-2)·y~(-1)(0.0837 mm·y~(-1)), whereas that of Mg-1.5 Nd alloy was 0.0294 mg·cm~(-2)·y~(-1)(0.0517 mm·y~(-1)) during the exposure corrosion in the South China Sea site. The mechanical strength of Mg-1.5 Nd alloy was 148 MPa before the exposure in the harsh marine environment, while the residual mechanical strength was merely about94 MPa after the exposure test. Both Mg-1.5 Nd alloy and Mg-1.0 Nd alloy occurred the brittle fracture, which resulted that the elongation was nearly equal to zero. The self-corrosion current density demonstrated that degradation rate of Mg-Nd binary alloys was as follows : Mg-0.5 Nd>Mg-1.0 Nd>Mg-1.5 Nd. For the South China Sea corrosion site, a large amount of sea salts exited in the atmospheric environment. Due to the heavy rainfall and high humidity, sodium chloride in the atmospheric environment dissolved, more serious electrochemical corrosion occurred on the surface of Mg-Nd binary alloys. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | the Fundamental Research Project of Technology Program of Qingdao (No.17–11–76-JCH) ; Shandong Provincial Natural Science Foundation (ZR201910230421) ; the National Natural Science Foundation of China for Exploring Key Scientific Instrument (No. 41827805) for providing support |
| 卷 | v.9期:01页:296-308 |
| 语种 | 英文; |
| 分类号 | TG172.3 |
| ISSN号 | 2213-9567 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187900]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CASKeyLaboratoryofMarineEnvironmentalCorrosionandBio-fouling,InstituteofOceanology,ChineseAcademyofSciences 2.OpenStudioforMarineCorrosionandProtection,QingdaoNationalLaboratoryforMarineScienceandTechnology 3.CenterforOceanMega-Science,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Quantong Jiang,Dongzhu Lu,Ning Wang,et al. The corrosion behavior of Mg–Nd binary alloys in the harsh marine environment. 2021. |
入库方式： OAI收割
来源：海洋研究所
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