| LI Gang,HOU Jun-ying,LIU Li,SHUI Dong-li,TANG Hai-peng,CHEN Yong-jun.Study on Microstructure and Properties of the Ni-based Amorphous Composite Coating Prepared by Laser Cladding[J],39(4):15-17,24 |
| Study on Microstructure and Properties of the Ni-based Amorphous Composite Coating Prepared by Laser Cladding |
| Revised:August 10, 2010 |
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| DOI： |
| KeyWord:laser cladding 45 steel microstructure properties |
| Author | Institution |
| LI Gang |
Liaoning Technical University, Fuxin , China |
| HOU Jun-ying |
Liaoning Technical University, Fuxin , China |
| LIU Li |
Liaoning Technical University, Fuxin , China |
| SHUI Dong-li |
Liaoning Technical University, Fuxin , China |
| TANG Hai-peng |
Liaoning Technical University, Fuxin , China |
| CHEN Yong-jun |
Liaoning Technical University, Fuxin , China |
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| Abstract: |
| Ni42Zr30Ta28alloy powder was pre-coated on 45 steel surface. Amorphous composite coating was prepared with DL-HL-T5000B-type cross-flow CO2laser helium-free. The microstructure was analyzed with XRD and metallurgical microscope analysis, meanwhile the hardness and friction properties of the layers were tested. The result shows that the coating is composed of intermetallic compounds, amorphous and nanocrystals, for example, Fe7Ta3, Ni7Zr2, FeNi3, Ni3Ta etc. The hardness of cladding layer reaches the maximum at the power of 3.3 kW, which is 2 954.3HK, and the wear rate is the lowest, which is 0.571 mg/mm2. |
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