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| Influence of Pretreatment on the Adhesion of Electroless Nickel Planting on Magnesium Alloy |
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| 东南大学材料科学与工程系 |
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Abstract It is an effective method to improve the corrosion resistance of magnesium alloys by using electroless nickel planting. However, the pretreatment of substrate can influence the adhesion of the coating on magnesium alloys significantly due to their high chemical activity. The influences of different pretreatment techniques on the adhesion of electroless nickel planting on magnesium alloy have been studied in this paper. Furthermore, the adhesive force between the coating and the magnesium substrate has been estimated by used bend test, file test, and scribe test. Through the test, we come to the conclusion that by using the one step pretreatment and once zincification, the film of the sample has the best adhesion; at the same time, the surface morphology has proved that the mesosphere is the thinnest.
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Received: 24 August 2005
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