| Autor: |
Jing, Qi Feng, Tan, Ye Fa, Tang, Jian, Tan, Hua, Hong, Xiang, Wang, Wei Gang |
| Zdroj: |
Advanced Materials Research; January 2014, Vol. 881 Issue: 1 p1400-1404, 5p |
| Abstrakt: |
Stellite190 cobalt alloy coating was deposited on 45 carbon steel by electro-spark deposition. Formation mechanism, microstructure, phase composition and mechanical properties of the coating were researched, fracture mechanism of the coating was analyzed. The results indicate that, the coating has dense and well distributed microstructure, mainly composed of Co, (CoCrW)6C, Cr7C3. The coating presents excellent mechanical properties with a tensile strength of 731.83 MPa, a bonding strength of 213.01 MPa and good peeling resistance. The mechanism for tensile fracture of the coating is dimple fracture, and for shear fracture is cleavage fracture. |
| Databáze: |
Supplemental Index |
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