| LIU Xiu-juan,LI Qing-liang,JIANG Jun-xia,LIU Bai,WANG Hua-chang.Study on Growth of Vanadium Carbide Coating at Initial Stage of Salt Bath Vanadizing Process[J],39(4):39-41 |
| Study on Growth of Vanadium Carbide Coating at Initial Stage of Salt Bath Vanadizing Process |
| Received:March 28, 2010 Revised:August 10, 2010 |
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| DOI： |
| KeyWord:salt bath vanadizing process vanadium carbide coating morphology composition distribution |
| Author | Institution |
| LIU Xiu-juan |
Shenzhen Institute of Information Technology, Shenzhen , China |
| LI Qing-liang |
Shenzhen Institute of Information Technology, Shenzhen , China |
| JIANG Jun-xia |
Shenzhen Institute of Information Technology, Shenzhen , China |
| LIU Bai |
Shenzhen Institute of Information Technology, Shenzhen , China |
| WANG Hua-chang |
School of Material Science and Engineering, Wuhan University of Technology, Wuhan , China |
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| Abstract: |
| Salt-bath vanadizing process was carried out at different temperatures on the T12 steel substrate for different time. By scanning electron microscopy, XRD,electron microprobe, vanadizing surface morphology evolution at the early stage was analyzed.And comparison of the morphology and composition distribution of initial vanadizing coating between the substrates of domestic supply state T12 steel and globalization annealed state T12 steel was performed. The following results can be obtained:1)at different temperatures, all the initial vanadizing coatings are formed through initial nucleation and growth to cover the whole substrate, and sub-micro sized grain formation on the initial grains, and finally formation of a very smooth surface,2)the time for formation of similar morphology is different at various temperatures, 3)the microstructure of substrate has effect on the early appearance of vanadizing coating and the uniform distribution of cementite in the substrate helps the formation of uniform and dense coating. |
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