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Study on the Preparation and Alleviating Fretting Wear Property of Ni-Tl-B Coatings on Steel
Abstract:
Both of coating with lead nitrate as stabilizer (common Ni-B coating) and coating with thallium sulfate as stabilizer (Ni-Tl-B coating) were prepared on steel substrates. Meanwhile, different Ni-Tl-B coatings were also prepared by changing the content of thallium salt in solution. Several kinds of process of electroless plating Ni-B were introduced. Surface morphology was observed with TM-1000 scanning electron microscope, and the alleviating fretting damage property was tested on DELTALAB-NENE high-precision hydraulic servo fretting wear tester. The results show that: The more content of thallium salt, the rougher the surface morphology of coatings is. When the content of thallium salt in plating solution is 2mg/L, the coating has the best alleviating fretting damage property with the coefficient of friction 0.12 in running-in stage.
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1340-1343
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March 2010
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© 2010 Trans Tech Publications Ltd. All Rights Reserved
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