Effects of Carbon Content in Cemented Carbides on Inhibition Effect of Grain Growth Inhibitors AITranslate
Abstract AITranslate
WC-gCo （containing 0.8 % Cr3 C2/VC） ultrafine cemented carbides were prepared at different sintering temperature by using mixture with different total carbon content of 5.66% and 5.70%. Change with ball milling time in the oxygen content of the mixture,size and internal strain of WC grains was measured, and the change of magnetic properties in the wc-gCo cemented carbides sintered at different temperatures with ball milling time was also investigated. The results show that the nano-size WC grains cannot be crushed by rolling ball milling. With the increase of ball milling time, the oxygen content of mixture with different carbon contents linearly increases,and the increase rate is slower with higher carbon content. Corn value of the ultrafine cemented carbides is a main factor affecting Hc value. Hc value increases at first and then decreases with the increase of Corn value showing a parabolic law, and the maximum Hc value is reached at a certain Corn value. It can be deduced that the carbon content affects the precipitation of V and Cr on the WC/Co interface and the formation of （W,Cr）Cx and （W,V）Cx interphases which can inhibit the growth of WC grains,and therefore affects the inhibition effect.
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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-gCo （containing 0.8 % Cr3 C2/VC） ultrafine cemented carbides were prepared at different sintering temperature by using mixture with different total carbon content of 5.66% and 5.70%. Change with ball milling time in the oxygen content of the mixture,size and internal strain of WC grains was measured, and the change of magnetic properties in the wc-gCo cemented carbides sintered at different temperatures with ball milling time was also investigated. The results show that the nano-size WC grains cannot be crushed by rolling ball milling. With the increase of ball milling time, the oxygen content of mixture with different carbon contents linearly increases,and the increase rate is slower with higher carbon content. Corn value of the ultrafine cemented carbides is a main factor affecting Hc value. Hc value increases at first and then decreases with the increase of Corn value showing a parabolic law, and the maximum Hc value is reached at a certain Corn value. It can be deduced that the carbon content affects the precipitation of V and Cr on the WC/Co interface and the formation of （W,Cr）Cx and （W,V）Cx interphases which can inhibit the growth of WC grains,and therefore affects the inhibition effect.
quote
| GB/T 7714-2015 | [1] LIU Yan-jun, CHEN Kang-hua, LI Yong-xia, et al. Effects of Carbon Content in Cemented Carbides on Inhibition Effect of Grain Growth Inhibitors[J]. Rare Metals and Cemented Carbides, 2017(3): 65-70. |
| MLA | [1] LIU Yan-jun, et al., "Effects of Carbon Content in Cemented Carbides on Inhibition Effect of Grain Growth Inhibitors." Rare Metals and Cemented Carbides, no. 3, 2017, pp. 65-70. |
| APA | [1] LIU Yan-jun, CHEN Kang-hua, LI Yong-xia, WU En-xi, ZOU Dan, & XIE Yuan-yan. (2017). Effects of Carbon Content in Cemented Carbides on Inhibition Effect of Grain Growth Inhibitors. Rare Metals and Cemented Carbides(3), 65-70. |
| IEEE | [1] LIU Yan-jun, CHEN Kang-hua, LI Yong-xia, WU En-xi, ZOU Dan, and XIE Yuan-yan, "Effects of Carbon Content in Cemented Carbides on Inhibition Effect of Grain Growth Inhibitors," Rare Metals and Cemented Carbides, no. 3, pp. 65-70, 2017. keywords: {grain growth inhibitor;carbon content;WC-Co;cemented carbide;cobalt magnetism;magnetic coercivity;precipitated phase} |