IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
The Role of Ammonium Chloride in the Powder Thermal Diffusion Alloying Process on a Magnesium Alloy
Lu, Dongzhu1,2,3; Jiang, Quantong1,2,3; Zheng, Meng1,2,3; Zhang, Jie1,2,3; Huang, Yanliang1,2,3; Hou, Baorong1,2,3
2019-04-01
Source PublicationCOATINGS
ISSN2079-6412
Volume9Issue:4Pages:10
Corresponding AuthorLu, Dongzhu(ldz@qdio.ac.cn)
AbstractThe powder thermal diffusion alloying method could be utilized to fabricate Al-rich intermetallic coatings on magnesium alloys in the air. While the role of ammonium chloride powder in the diffusion alloying source is still to be investigated. This research took the AZ91D magnesium alloy as the substrate. Diffusion sources with various powders were utilized as the diffusion source. Microstructure observation and phase identification were enrolled to investigate the role of the ammonium chloride powder in the diffusion alloying process. Results indicate that HCl gas could turn some solid Al powder into gaseous AlCl3 to enhance the transport of active Al atoms, moreover, it reacts with the dense MgO film and converts it to a loose one, which enables the AlCl3 gas to penetrate MgO and arrive the matrix to form a protective coating. Furthermore, the ammonium chloride content should be confined to 10 wt. % of the diffusion alloying source. Too much ammonium chloride powder would result in a worse intermetallic coating.
Keywordmagnesium alloy ammonium chloride diffusion coating powder
DOI10.3390/coatings9040252
Indexed BySCI
Language英语
Funding ProjectApplied Research Program of Qingdao[17-1-1-22-jch] ; Key Research & Development Program of Shandong Province[2018GSF117039]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Coatings & Films
WOS IDWOS:000467318800039
PublisherMDPI
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/161341
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorLu, Dongzhu
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Shandong, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Shandong, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lu, Dongzhu,Jiang, Quantong,Zheng, Meng,et al. The Role of Ammonium Chloride in the Powder Thermal Diffusion Alloying Process on a Magnesium Alloy[J]. COATINGS,2019,9(4):10.
APA Lu, Dongzhu,Jiang, Quantong,Zheng, Meng,Zhang, Jie,Huang, Yanliang,&Hou, Baorong.(2019).The Role of Ammonium Chloride in the Powder Thermal Diffusion Alloying Process on a Magnesium Alloy.COATINGS,9(4),10.
MLA Lu, Dongzhu,et al."The Role of Ammonium Chloride in the Powder Thermal Diffusion Alloying Process on a Magnesium Alloy".COATINGS 9.4(2019):10.
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