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Wear and Corrosion Resistance of Laser Cladding Ni60-TiC Ceramic Coating on 45 Steel Surface
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Affiliation:

University of Jinan

Clc Number:

TG174

Fund Project:

The National Natural Science Foundation of China (51575234, 51872122); China Postdoctoral Science Foundation (2017M620286); Shandong Provincial Key Research and Development Program (2018CXGC0809); Shandong Agricultural Machinery R&D Innovation Program (2018YF012) and Shandong Taishan Scholar Specialized Expert.

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    Abstract:

    The plunger pump plunger (45 steel) works in high friction and high corrosion environment for a long time, and needs to improve the wear resistance and corrosion resistance of its working surface to improve its working efficiency and prolong its service life. The cermet coating was prepared by cladding the Ni60-TiC mixed powder on the surface of 45 steel by laser cladding technology, and the coatings with different TiC contents (0%, 10%, 20%, 30%) were tested for hardness test and friction and wear test. Corrosion resistance test, at the same time, the surface morphology of the coating was characterized and the microhardness was tested. The results show that the addition of TiC to the coating can effectively improve the wear resistance and corrosion resistance of the coating, improve the hardness of the coating and reduce the friction coefficient. Considering the actual working environment of the plunger pump plunger, the wear resistance and corrosion resistance of the coating are best when the TiC content in the coating is 20%-30%.

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[Cao Jinlong, Yang Xuefeng. Wear and Corrosion Resistance of Laser Cladding Ni60-TiC Ceramic Coating on 45 Steel Surface[J]. Rare Metal Materials and Engineering,2020,49(2):611~617.]
DOI:10.12442/j. issn.1002-185X. QH20190043

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History
  • Received:March 25,2019
  • Revised:May 07,2019
  • Adopted:October 23,2019
  • Online: March 12,2020
  • Published: