| JIANG Wei,QI Jia-rui,SUN Hai-xia.Laser Surface Alloying on 30CrMnSi Electroplated with Cr[J],37(4):29-30 |
| Laser Surface Alloying on 30CrMnSi Electroplated with Cr |
| Received:February 22, 2008 Revised:August 10, 2008 |
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| DOI： |
| KeyWord:Laser surface alloying 30CrMnSi Parameters Microstructure Micro-hardness Chrome plating |
| Author | Institution |
| JIANG Wei |
Aviation Department of Mechanical Engineering, Qingdao Branch, Naval Aeronautical Engineering Academy, Qingda0 , China |
| QI Jia-rui |
Aviation Department of Mechanical Engineering, Qingdao Branch, Naval Aeronautical Engineering Academy, Qingda0 , China |
| SUN Hai-xia |
Aviation Department of Mechanical Engineering, Qingdao Branch, Naval Aeronautical Engineering Academy, Qingda0 , China |
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| Abstract: |
| For studying the impact of microstructure and micro-hardness of 30CrMnSi electroplated with Cr by laser surface alloying, using C02 laser as heat source and orthogonal test, the alloying layers by single-channel scanning were attained whose microstructure and micro-hardness were better than the substrates: The results indicate that: the laser alloying layers microstructure is refined remarkably, and the average micro-hardness is higher than the substrates'obviously. When laser power is 500W, scanning speed is lOmm/s and the protection of gas flow is lOL/min, the alloying layer has small dense uniform and the highest micro-hardness of 829HV is about 2. 6 times in contrast of the substrate's. |
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