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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 6    December 2001

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Structure and characteristics of electrodeposited
RE-Ni-W-P-B4C-PTFE composite coatings
CHEN Ling(陈  凌), GUO Zhong-cheng(郭忠诚),  YANG Xian-wan(杨显万)

Faculty of Materials and Metallurgy Engineering, Kunming University of
Science and Technology,Kunming 650093, P.R.China

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 heattreatment for 1hat 300℃,which is greatly superior to that of the other traditional coatings.

 

Key words:  electrodeposited; RE-Ni-W-P-B4C-PTFE composite coatings; structure; hardness; wearresistance

ISSN 1672-7029
CN 43-1423/U

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