Study on Properties of HVOF Coating Sprayed with Ultra-fine WC-12Co Composite Powder Prepared by Spray Conversion AITranslate
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Using ultra-fine WC-12Co composite powder prepared by spray conversion as raw material,WC- 12Co coating was prepared on 45# steel substrate by high velocity oxygen-fuel （HVOF） spray. The micro- hardness,fracture toughness and abrasive wear resistance of the coating were investigated. The phases of composite powder and coating were analyzed by XRD, and the microstructure of composite powder and coating cross-section was analyzed by SEM. The results indicate that WC particles of porous spherical shell composite powder are obviously decarburized during spraying. The coating contains W2 C, Co2 W4 C, W and amorphous phase, and shows typical lamellar microstructure. WC grains grow up and turn round. The aver- age HV0.3/10 microhardness and fracture toughness coating are 1 084 and 5.24 MPa · m1/2 ,respectively. The wear resistance of coating surface increases with roughness decreasing and microhardness increasing, and the average wear mass loss is 0. 783 mg/min.
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Basic Information:
DOI：
Chinese Library Classification Number:TG174.442[金属学及工艺—金属表面处理]
Citation Information:
Using ultra-fine WC-12Co composite powder prepared by spray conversion as raw material,WC- 12Co coating was prepared on 45# steel substrate by high velocity oxygen-fuel （HVOF） spray. The micro- hardness,fracture toughness and abrasive wear resistance of the coating were investigated. The phases of composite powder and coating were analyzed by XRD, and the microstructure of composite powder and coating cross-section was analyzed by SEM. The results indicate that WC particles of porous spherical shell composite powder are obviously decarburized during spraying. The coating contains W2 C, Co2 W4 C, W and amorphous phase, and shows typical lamellar microstructure. WC grains grow up and turn round. The aver- age HV0.3/10 microhardness and fracture toughness coating are 1 084 and 5.24 MPa · m1/2 ,respectively. The wear resistance of coating surface increases with roughness decreasing and microhardness increasing, and the average wear mass loss is 0. 783 mg/min.
quote
| GB/T 7714-2015 | [1] WU Jie, WANG Zhong-hua, SHANG Gen-feng, et al. Study on Properties of HVOF Coating Sprayed with Ultra-fine WC-12Co Composite Powder Prepared by Spray Conversion[J]. Rare Metals and Cemented Carbides, 2017(2): 39-44. |
| MLA | [1] WU Jie, et al., "Study on Properties of HVOF Coating Sprayed with Ultra-fine WC-12Co Composite Powder Prepared by Spray Conversion." Rare Metals and Cemented Carbides, no. 2, 2017, pp. 39-44. |
| APA | [1] WU Jie, WANG Zhong-hua, SHANG Gen-feng, YANG Jian-gao, LIU Fang, & LV Jian. (2017). Study on Properties of HVOF Coating Sprayed with Ultra-fine WC-12Co Composite Powder Prepared by Spray Conversion. Rare Metals and Cemented Carbides(2), 39-44. |
| IEEE | [1] WU Jie, WANG Zhong-hua, SHANG Gen-feng, YANG Jian-gao, LIU Fang, and LV Jian, "Study on Properties of HVOF Coating Sprayed with Ultra-fine WC-12Co Composite Powder Prepared by Spray Conversion," Rare Metals and Cemented Carbides, no. 2, pp. 39-44, 2017. keywords: {ultra-fine WC-12Co composite powder;spray conversion method;HVOF;coating} |