Wear properties of reactive plasma clad (Cr,Fe)<sub>7</sub>C<sub>3</sub>/γ-Fe ceramal composite coatings

LIU Junbo; WANG Limei; HUANG Jihua

doi:10.13374/j.issn1001-053x.2007.01.011

Volume 29 Issue 1

Aug. 2021

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LIU Junbo, WANG Limei, HUANG Jihua. Wear properties of reactive plasma clad (Cr,Fe)7C3/γ-Fe ceramal composite coatings[J]. Chinese Journal of Engineering, 2007, 29(1): 50-54. doi: 10.13374/j.issn1001-053x.2007.01.011

Citation:

LIU Junbo, WANG Limei, HUANG Jihua. Wear properties of reactive plasma clad (Cr,Fe)₇C₃/γ-Fe ceramal composite coatings[J]. Chinese Journal of Engineering, 2007, 29(1): 50-54. doi: 10.13374/j.issn1001-053x.2007.01.011

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Wear properties of reactive plasma clad (Cr,Fe)₇C₃/γ-Fe ceramal composite coatings

doi: 10.13374/j.issn1001-053x.2007.01.011

1. Department of Mechanical and Electronic Engineering, Weifang University, Weifang 261041, China;
2. Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
3. Department of Information and Control Engineering, Weifang University, Weifang 261061, China

Received Date: 2005-10-12
Rev Recd Date: 2006-09-22

Available Online: 2021-08-16

Abstract

Abstract

An in-situ reinforcing phase (Cr,Fe)₇C₃ ceramal composite coating was fabricated on the substrate of a 0.45% carbon steel using Fe-Cr-C elemental powder blending by reactive plasma clad process. The microstructure and micro-hardness of the coating were evaluated by SEM, XRD, EDS and micro-hardness instrument, the room temperature and high temperature wear properties were evaluated under dry sliding wear test conditions, and the wear mechanism was discussed. The results indicated that the reactive plasma clad ceramal composite coating has a rapidly solidified microstructure consisting of primary (Cr,Fe)₇C₃ and (Cr,Fe)₇C₃/γ-Fe eutectics, with excellent wear properties under both room-temperature and high-temperature sliding wear test conditions.
- ceramal composite coating,
- reactive plasma clad,
- microstructure,
- wear properties