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| Study on Sliding Wear Behavior of 25%NiCr-Cr_2C_3 Coatings Sprayed by HVOF |
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| DOI：doi：10.3969/j.issn.1007-7545.年份.期号.顺序号 |
| KeyWord:High Velocity Oxy-Fuel Spraying(HVOF);Cr_3C_2-25%NiCr;Coating;Sliding wear; |
| GAO Feng,LIU Fu-rong,REN Xian-jing |
GAO Feng,LIU Fu-rong,REN Xian-jing (Beijing General Institute of Mining , Metallurgy,Beijing 100044,China)
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| Abstract: |
| Cr_3C_2-25%NiCr coatings were prepared on No.45 steel substrate by means of high velocity oxyfuel spraying(HVOF).Coating porosity,microhardness and weightness loss of coating in the sliding wear test were studied.Profiles of the sliding wear coefficients were described and the wear mechanisms of coatings were discussed as well.The results show that the coatings are compact with the porosity of 0.96%,and the hardness of the coatings is 867 HV under the loading of 300 gram.Abrasion of the coatings is stable a... |
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