Effect of Ni Content on Mechanical Properties and Corrosion Resistance of WC-Co-Ni Cemented Carbides AITranslate
Abstract AITranslate
WC,Co and Ni were used as raw materials to prepare cemented carbide samples with different nickel-cobalt ratios by powder metallurgy.The microstructure of the samples was studied, their mechanical properties, including hardness, wear resistance coefficient, bending strength, and fracture toughness were analyzed, and their corrosion resistance was studied through electrochemical experiments.The results show that with the increase of Ni content, the hardness, wear resistance coefficient and bending strength of WC-Co-Ni cemented carbides continue to decrease, while the fracture toughness increases at first and then decreases.The micro-grain structure of the three groups of samples with WC-10%Co, WC-9%Co-1%Ni and WC-7%Co-3%Ni is relatively fine and uniform while that of the remaining samples is coarse.The results of the electrochemical experiments in 3.5% NaCl solution with pH value of 7 show that the corrosion resistance of WC-Co-Ni cemented carbides increases with the increase of Ni content, and the WC-7%Co-3%Ni sample has the best comprehensive mechanical properties.Considering the corrosion resistan-ce of the sample, the optimized cemented carbides can better improve the working life of the shield tools.
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Basic Information:
DOI：
Chinese Library Classification Number:TG135.5[一般工业技术—材料科学与工程]
Citation Information:
WC,Co and Ni were used as raw materials to prepare cemented carbide samples with different nickel-cobalt ratios by powder metallurgy.The microstructure of the samples was studied, their mechanical properties, including hardness, wear resistance coefficient, bending strength, and fracture toughness were analyzed, and their corrosion resistance was studied through electrochemical experiments.The results show that with the increase of Ni content, the hardness, wear resistance coefficient and bending strength of WC-Co-Ni cemented carbides continue to decrease, while the fracture toughness increases at first and then decreases.The micro-grain structure of the three groups of samples with WC-10%Co, WC-9%Co-1%Ni and WC-7%Co-3%Ni is relatively fine and uniform while that of the remaining samples is coarse.The results of the electrochemical experiments in 3.5% NaCl solution with pH value of 7 show that the corrosion resistance of WC-Co-Ni cemented carbides increases with the increase of Ni content, and the WC-7%Co-3%Ni sample has the best comprehensive mechanical properties.Considering the corrosion resistan-ce of the sample, the optimized cemented carbides can better improve the working life of the shield tools.
quote
| GB/T 7714-2015 | [1] SUN Hua-xin, XU Shu-bo, LI Hui, et al. Effect of Ni Content on Mechanical Properties and Corrosion Resistance of WC-Co-Ni Cemented Carbides[J]. Rare Metals and Cemented Carbides, 2022(6): 77-82. |
| MLA | [1] SUN Hua-xin, et al., "Effect of Ni Content on Mechanical Properties and Corrosion Resistance of WC-Co-Ni Cemented Carbides." Rare Metals and Cemented Carbides, no. 6, 2022, pp. 77-82. |
| APA | [1] SUN Hua-xin, XU Shu-bo, LI Hui, ZHENG Jun-zi, & LU Qing-liang. (2022). Effect of Ni Content on Mechanical Properties and Corrosion Resistance of WC-Co-Ni Cemented Carbides. Rare Metals and Cemented Carbides(6), 77-82. |
| IEEE | [1] SUN Hua-xin, XU Shu-bo, LI Hui, ZHENG Jun-zi, and LU Qing-liang, "Effect of Ni Content on Mechanical Properties and Corrosion Resistance of WC-Co-Ni Cemented Carbides," Rare Metals and Cemented Carbides, no. 6, pp. 77-82, 2022. keywords: {powder metallurgy;WC-Co-Ni cemented carbide;mechanical property;electrochemical corro-sion;Ni content} |