| STUDY ON PTA CLAD (Cr,Fe)7C3 /γ-Fe CERAMAL COMPOSITE COATING |
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| 作者姓名： | J.B. Liu J.H. Huang L.M. Wang |
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| 作者单位： | [1]Department of Mechanical and Electronic Engineering, Weifang University, Weifang 261061, China [2]School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| 摘 要： | A wear resistant （Cr, Fe）7C3/γ-Fe ceramalcomposite coating wasfabricatedon substrate of a 0.45% C carbon steel by plasma transferred arc （PTA） cladding process using the Fe-Cr-C elemental powder blends. The microstructure, microhardness and dry sliding wear resistance of the coating were evaluated. Results indicate that the plasma transferred arc clad ceramal composite coating has a rapidly solidified microstructure consisting of blocky primary （Cr, Fe）7C3 and the interblocky （ Cr, Fe）7C3/γ-Fe eutectics and is metallurgically bonded to the 0.45%C carbon steel substrate. The ceramal composite coating has high hardness and excellent wear resistance under dry sliding wear test condition.
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| 关 键 词： | （Cr Fe）7C3/γ-Fe 等离子弧喷涂 金属陶瓷 显微结构 显微硬度 |
| 收稿时间： | 2005-05-24 |
| 修稿时间： | 2005-09-06 |
STUDY ON PTA CLAD (Cr,Fe)7C3 /γ-Fe CERAMAL COMPOSITE COATING |
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| J.B. Liu J.H. Huang L.M. Wang.STUDY ON PTA CLAD (Cr,Fe)7C3 /γ-Fe CERAMAL COMPOSITE COATING[J].Acta Metallurgica Sinica(English Letters),2005,18(6):695-700. |
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| Authors: | JB Liu JH Huang and LM Wang |
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| Affiliation: | Department of Mechanical and Electronic Engineering, Weifang University, Weifang 261061, China |
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| Abstract: | A wear resistant (Cr,Fe)7C3 /γ-Fe ceramal composite coating was fabricated on substrate of a 0.45%C carbon steel by plasma transferred arc (PTA) cladding process using the Fe-Cr-C elemental powder blends. The microstructure, microhardness and dry sliding wear resistance of the coating were evaluated. Results indicate that the plasma transferred arc clad ceramal composite coating has a rapidly solidified microstructure consisting of blocky primary (Cr,Fe)7C3 and the inter- blocky (Cr,Fe)7C3 /γ-Fe eutectics and is metallurgically bonded to the 0.45%C carbon steel substrate. The ceramal composite coating has high hardness and excellent wear resistance under dry sliding wear test condition. |
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| Keywords: | plasma transferred arc (PTA) cladding (Cr Fe)7C3 /γ-Fe coating |
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