Wear Resistance of In Situ NbC-Reinforced Laser Cladding Ni45 Coatings-Reference-Cited by-同舟云学术

Wear Resistance of In Situ NbC-Reinforced Laser Cladding Ni45 Coatings

Published:2023-07-26 Issue:8 Volume:11 Page:316
ISSN:2075-4442
Container-title:Lubricants
language:en
Short-container-title:Lubricants

Author:

Liu Yingpeng¹,Wang Kaiming²^ORCID,Fu Hanguang¹^ORCID,Zong Bin¹,Zhang Jiguang¹

Affiliation:

1. Key Laboratory of Advanced Functional Materials, Ministry of Education, Department of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

2. College of Automobile and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410114, China

Abstract

In situ NbC-reinforced laser cladding Ni45 coatings have the advantages of high bond strengths, low dilution rates, small heat-affected zones and good wear resistance and have broad application prospects in the field of surface strengthening and repair of workpieces such as automotive molds and engine turbines. Previous studies have mostly used pure niobium powder for in situ synthesis to prepare Ni-based NbC coatings with a high production cost. In this paper, NbC was successfully synthesized in situ in Ni45 powder using inexpensive FeNb65 and Cr3C2. The prepared coating has a uniform microstructure and excellent wear resistance, and the reinforced phases are mainly NbC and Cr23C6. Coating 4# with 25 wt.% FeNb65 + Cr3C2 has the highest microhardness of 776.3HV0.2, about 1.45 times that of the Ni45 coating, and its wear resistance is 36.36 min/mg, about 60.6 times that of the Cr12MoV steel base material and about 23.76 times that of the Ni45 coating.

Funder

R&D Program of Beijing Municipal Education Commission

Publisher

MDPI AG

Subject

Surfaces, Coatings and Films,Mechanical Engineering

Link

https://www.mdpi.com/2075-4442/11/8/316/pdf

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