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| Influence of B4C Content on Corrosion Behaviour and Wear Resistance of Cold Sprayed Aluminium-based Boron Carbide Composite Coatings |
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| DOI：10.7643/issn.1672-9242.2022.08.012 |
| KeyWord:boron carbide neutral absorption cold spray corrosion wear coatings |
| Author | Institution |
| XU Lu-Jie |
Naval Military Representative Office in Luoyang, Luoyang , China |
| HAN Chao |
State Key Laboratory for Marine Corrosion and Protection, Qingdao Branch of China State Shipbuilding Corporation, Ltd.724th Research Institute, Qingdao , China |
| HUANG Guo-sheng |
State Key Laboratory for Marine Corrosion and Protection, Qingdao Branch of China State Shipbuilding Corporation, Ltd.724th Research Institute, Qingdao , China |
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| Abstract: |
| Al/B4C composites materials are widely used as storage vessels for nuclear waste and nuclear reaction shielding device for its excellent anticorrosion, wear resistant and anti-neutron radiation performances. However, Al/B4C composite materials suffer from low structure strength, oxidation and decomposition in sintering process. Cold spray technology is considered to be an ideal method to prepare Al/B4C composites materials. There is few report on the properties influenced by the B4C content. In this paper, Al/B4C composites coatings were deposited on Q235 steel substrate with 4 kinds of B4C content. SEM, SKP, and BS methods were used to characterize the coatings. The results indicate that excellent Al/B4C coating can be deposited by cold spray. The highest bonding strength can reach 26.67 MPa as the B4C is 30%. The coating can decrease the wear rate significantly as the B4C content is more than 20%. But the uniformity of the coating decreases as the B4C content increases, which increase the risk of coating corrosion. |
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