Structure and characteristics of electrodeposited RE-Ni-W-P-B₄C-PTFE composite coatings

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ÎÄÕÂÒ³Â룺887 - 890

Key words£ºelectrodeposited; RE-Ni-W-P-B₄C-PTFE composite coatings; structure; hardness; wearª²resistance

Abstract: Hardness, friction and wear characteristics of electrodeposited RE-Ni-W-P-B₄C-PTFE composite coatings were studied, and the reason for these fine characteristics was explained in respect of structure. The results show that 1) the structure of RE-Ni-W-P-B₄C-PTFE composite coatings experiences a transformation process from amorphous to mixture then to crystal as the heat-treatment temperature rises; 2) incorporating of B₄C greatly increases the hardness of the coating; 3) the wear resistance of the coating is best with heatª²treatment for 1hªªat 300¡æ,ªªwhich is greatly superior to that of the other traditional coatings.