| MA Li,ZHANG Ya-ming.Status and Development of Metal and Surface Strengthened Layers by Argon Arc Remelting Technology[J],45(4):218-225,231 |
| Status and Development of Metal and Surface Strengthened Layers by Argon Arc Remelting Technology |
| Received:December 14, 2015 Revised:April 20, 2016 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2016.04.037 |
| KeyWord:argon arc remelting principle of remelting cast iron coating hot-dipped coating layer wear resistance |
| Author | Institution |
| MA Li |
College of Mining Engineering, Liaoning Technical University, Fuxin , China |
| ZHANG Ya-ming |
College of Mining Engineering, Liaoning Technical University, Fuxin , China |
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| Abstract: |
| As a kind of widely used post-treatment process applied to the metal surface, argon arc remelting technology has many advantages, such as improving the microstructure on the surface of metal material, relieving the residual stress of welded joint and modifying the integrated state of interface between the metallic substrate and the strengthening layer, which promotes the combination properties of metal and surface strengthened layers to some degree. The principle, characteristics of argon arc remelting technology and the effects of process parameters, including remelting current, movement speed, flow rate of argon gas and arc length, on the result of remelting were introduced. Meanwhile, the applications of argon arc remelting technology in follow-up treatment methods of metals (including cast iron, steel and alloy), and surface strengthened layers (including coating, hot-dipped coating, layer and welding cladding) were highlighted. Furthermore, it also pointed out the development directions of metal and surface strengthened layers by argon arc remelting in the future. Firstly, the related research of the internal mechanism and interface reaction remains to be strengthened; secondly, the rapid solidification theory and the research related to interface structure remain to be perfected; thirdly, the degree of matching between the structural design of strengthening layer and the process conditions of argon arc remelting remains to be promoted; fourthly, the relevant numerical simulation study also remains to be strengthened. |
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