Long-Term Testing of WC–Ni–Fe Coating as an Inert Anode in a Low-Temperature Electrolyte for Aluminum Production
The behaviour of WC-Ni-Fe coating on 2Cr13 and X3CrNiMo18-12-3 stainless steel substrates was investigated in the context of their application as inert anode materials in a low-temperature (850 °C) electrolyte (50 wt.% AlF3-45 wt.% KF-5 wt.% Al2O3) by long-term testing around 50 h for aluminum produ...
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| Format: | Article |
| Language: | English |
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Kaunas University of Technology
2019-12-01
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| Series: | Medžiagotyra |
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| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/21574 |
| _version_ | 1818110718064459776 |
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| author | Chuhua LIU Yudong WANG Bin YANG Yongnian DAI |
| author_facet | Chuhua LIU Yudong WANG Bin YANG Yongnian DAI |
| author_sort | Chuhua LIU |
| collection | DOAJ |
| description | The behaviour of WC-Ni-Fe coating on 2Cr13 and X3CrNiMo18-12-3 stainless steel substrates was investigated in the context of their application as inert anode materials in a low-temperature (850 °C) electrolyte (50 wt.% AlF3-45 wt.% KF-5 wt.% Al2O3) by long-term testing around 50 h for aluminum production. The results show that the materials were corroded in a controlled manner and the extrapolated corrosion rates of WC–Ni–Fe/X3CrNiMo18-12-3 anode was 5.8 cm per year, which is acceptable from an industrial perspective. The total contamination level of anode constituents in the deposited metal was as low as 0.283 wt.%. These encouraging results seemed to be related in part to the X3CrNiMo18-12-3 substrate that allows only very slow penetration of oxygen atoms into the inner part. Post-electrolysis examination of the anodes indicates that the substrate material is one of the most important factors that determine the erosion resistance of coating inert anode. The results of electrolysis using 2Cr13 and X3CrNiMo18-12-3 substrates indicate that the electrical current is another important factor for the erosion resistance of inert anode coatings. |
| first_indexed | 2024-12-11T02:51:36Z |
| format | Article |
| id | doaj.art-9a50ed696d3344989046fb1fcf0e9ab0 |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-12-11T02:51:36Z |
| publishDate | 2019-12-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-9a50ed696d3344989046fb1fcf0e9ab02022-12-22T01:23:18ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892019-12-0126217918410.5755/j01.ms.26.2.2157421574Long-Term Testing of WC–Ni–Fe Coating as an Inert Anode in a Low-Temperature Electrolyte for Aluminum ProductionChuhua LIUYudong WANGBin YANGYongnian DAIThe behaviour of WC-Ni-Fe coating on 2Cr13 and X3CrNiMo18-12-3 stainless steel substrates was investigated in the context of their application as inert anode materials in a low-temperature (850 °C) electrolyte (50 wt.% AlF3-45 wt.% KF-5 wt.% Al2O3) by long-term testing around 50 h for aluminum production. The results show that the materials were corroded in a controlled manner and the extrapolated corrosion rates of WC–Ni–Fe/X3CrNiMo18-12-3 anode was 5.8 cm per year, which is acceptable from an industrial perspective. The total contamination level of anode constituents in the deposited metal was as low as 0.283 wt.%. These encouraging results seemed to be related in part to the X3CrNiMo18-12-3 substrate that allows only very slow penetration of oxygen atoms into the inner part. Post-electrolysis examination of the anodes indicates that the substrate material is one of the most important factors that determine the erosion resistance of coating inert anode. The results of electrolysis using 2Cr13 and X3CrNiMo18-12-3 substrates indicate that the electrical current is another important factor for the erosion resistance of inert anode coatings.http://matsc.ktu.lt/index.php/MatSc/article/view/21574carbideceramicscoatingscorrosionoxidationelectrical conductivity |
| spellingShingle | Chuhua LIU Yudong WANG Bin YANG Yongnian DAI Long-Term Testing of WC–Ni–Fe Coating as an Inert Anode in a Low-Temperature Electrolyte for Aluminum Production Medžiagotyra carbide ceramics coatings corrosion oxidation electrical conductivity |
| title | Long-Term Testing of WC–Ni–Fe Coating as an Inert Anode in a Low-Temperature Electrolyte for Aluminum Production |
| title_full | Long-Term Testing of WC–Ni–Fe Coating as an Inert Anode in a Low-Temperature Electrolyte for Aluminum Production |
| title_fullStr | Long-Term Testing of WC–Ni–Fe Coating as an Inert Anode in a Low-Temperature Electrolyte for Aluminum Production |
| title_full_unstemmed | Long-Term Testing of WC–Ni–Fe Coating as an Inert Anode in a Low-Temperature Electrolyte for Aluminum Production |
| title_short | Long-Term Testing of WC–Ni–Fe Coating as an Inert Anode in a Low-Temperature Electrolyte for Aluminum Production |
| title_sort | long term testing of wc ni fe coating as an inert anode in a low temperature electrolyte for aluminum production |
| topic | carbide ceramics coatings corrosion oxidation electrical conductivity |
| url | http://matsc.ktu.lt/index.php/MatSc/article/view/21574 |
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