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Micro-alloys precipitation in NiO- and CoO-bearing enamel coatings and their effect on adherence of enamel/steel
Chen, K; Chen, MH; Wang, QC; Zhu, SL; Wang, FH; Zhu, SL (reprint author), Chinese Acad Sci, Lab Corros & Protect, Inst Met Res, Shenyang, Liaoning, Peoples R China.; Chen, MH (reprint author), Northeastern Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang, Liaoning, Peoples R China.
2018
Source PublicationINTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE
ISSN2041-1286
Volume9Issue:1Pages:70-84
AbstractThe effect of CoO and NiO on the adherence between enamel coating and steel is investigated experimentally in this study. Enamel coatings are applied to the steel using a wet process with slurries. A total of five enamels were prepared including three single layer enamels: blank enamel (BL), NiO bearing enamel (MTNi3), CoO bearing enamel (MTCo3), and two double layer enamels: BL-MTNi3, BL-MTCo3, which consisted an inner layer of BL and an outer layer of MTNi3 or MTCo3. Falling-weights tests were performed and the cross-sections at the enamel/steel interface were analyzed with a scanning electron microscopy (SEM) coupled with an energy dispersive spectroscopy (EDS) and electron probe microanalysis (EPMA). Results show that the increases of adherence for MTCo3 and MTNi3 coated steel are attributed to the micro-alloys precipitation at the enamel/steel interface. These micro-alloy precipitations grow parallel to the steel/enamel interface for MTNi3, while they are dendritic and perpendicular for MTCo3. Compared with MTCo3, the negative reaction energy between NiO and FeO for MTNi3 causes micro-alloy precipitations formed far away from the enamel/steel interface, resulting in different morphology and adherence.; The effect of CoO and NiO on the adherence between enamel coating and steel is investigated experimentally in this study. Enamel coatings are applied to the steel using a wet process with slurries. A total of five enamels were prepared including three single layer enamels: blank enamel (BL), NiO bearing enamel (MTNi3), CoO bearing enamel (MTCo3), and two double layer enamels: BL-MTNi3, BL-MTCo3, which consisted an inner layer of BL and an outer layer of MTNi3 or MTCo3. Falling-weights tests were performed and the cross-sections at the enamel/steel interface were analyzed with a scanning electron microscopy (SEM) coupled with an energy dispersive spectroscopy (EDS) and electron probe microanalysis (EPMA). Results show that the increases of adherence for MTCo3 and MTNi3 coated steel are attributed to the micro-alloys precipitation at the enamel/steel interface. These micro-alloy precipitations grow parallel to the steel/enamel interface for MTNi3, while they are dendritic and perpendicular for MTCo3. Compared with MTCo3, the negative reaction energy between NiO and FeO for MTNi3 causes micro-alloy precipitations formed far away from the enamel/steel interface, resulting in different morphology and adherence.
description.department[chen, ken] univ sci & technol china, coll mat sci & engn, hefei, anhui, peoples r china ; [chen, ken ; zhu, shenglong] chinese acad sci, lab corros & protect, inst met res, shenyang, liaoning, peoples r china ; [chen, minghui ; wang, qunchang ; wang, fuhui] northeastern univ, sch mat sci & engn, minist educ, key lab anisotropy & texture mat, shenyang, liaoning, peoples r china
KeywordGas Desulfurization System Concentrated Sulfuric-acid Dew-point Corrosion Part 1 Behavior Glass Oxides Steel Interface Cobalt
Subject AreaMaterials Science, Ceramics
Funding OrganizationNational Natural Science Foundation of China [51471177]; Youth Innovation Promotion Association CAS [2016178]; Fundamental Research Funds for the Central Universities [N160205001]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79615
Collection中国科学院金属研究所
Corresponding AuthorZhu, SL (reprint author), Chinese Acad Sci, Lab Corros & Protect, Inst Met Res, Shenyang, Liaoning, Peoples R China.; Chen, MH (reprint author), Northeastern Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Chen, K,Chen, MH,Wang, QC,et al. Micro-alloys precipitation in NiO- and CoO-bearing enamel coatings and their effect on adherence of enamel/steel[J]. INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE,2018,9(1):70-84.
APA Chen, K.,Chen, MH.,Wang, QC.,Zhu, SL.,Wang, FH.,...&Chen, MH .(2018).Micro-alloys precipitation in NiO- and CoO-bearing enamel coatings and their effect on adherence of enamel/steel.INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE,9(1),70-84.
MLA Chen, K,et al."Micro-alloys precipitation in NiO- and CoO-bearing enamel coatings and their effect on adherence of enamel/steel".INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE 9.1(2018):70-84.
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