| XUE Bing,LEI Wei-ning,LIU Xiao,CHEN Shi-xin.Friction and Wear Resistance and Corrosion Resistance of Low Carbon Steel Arc Welding Additive Layer[J],49(9):225-232 |
| Friction and Wear Resistance and Corrosion Resistance of Low Carbon Steel Arc Welding Additive Layer |
| Received:August 25, 2019 Revised:September 20, 2020 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2020.09.025 |
| KeyWord:additive layer arc welding friction and wear wear mechanism corrosion performance remanufacturing |
| Author | Institution |
| XUE Bing |
1.Jiangsu University of Technology, Changzhou , China |
| LEI Wei-ning |
1.Jiangsu University of Technology, Changzhou , China; 2.Jiangsu Key Laboratory of Advanced Materials Design and Additive Manufacturing, Changzhou , China |
| LIU Xiao |
1.Jiangsu University of Technology, Changzhou , China |
| CHEN Shi-xin |
1.Jiangsu University of Technology, Changzhou , China |
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| Abstract: |
| The work aims to study the feasibility of low carbon steel arc welding repair to meet the performance requirements of remanufactured parts through TIG welding arc cladding additive manufacturing process for the damage loss of low carbon steel parts and then ensure the application of TIG welding repair. The microstructure of the welded joint was analyzed by TIG welding on the groove of the low carbon steel, and the surface hardness of the repaired additive layer was tested. The substrate and the additive layer were tested for friction properties by a Nanovea Tribometer friction wearer and a NanoveaPS50 surface profiler. The surface morphology after friction and wear was characterized and the wear mechanism was investigated. The corrosion performance of the substrate and the additive layer was analyzed by an electrochemical workstation. The repaired layer had a microhardness of 220.17HV higher than that of substrate and its friction and corrosion performance was also better than that of substrate. As the wear load increased, the friction coefficient of the additive layer decreased gradually. The wear mechanism was mainly abrasive wear and adhesion abrasion. The surface of the additive layer was uniform and fine. The pitting pit was small and dispersed in the NaCl solution. The corrosion current density of the additive layer (1.8349× 10-6 A/cm2) was smaller than that of substrate (6.5251×10-5 A/cm2) and the corrosion resistance of the additive layer surface was significantly improved. Arc-clad low carbon steel can meet the requirements of remanufacturing performance of on-site arc rapid repair of low carbon steel parts, and realize the surface repair and strengthening of damaged parts of low carbon steel. |
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