摘要
1.Introduction Cemented carbides are composites of WC ceramic phases and metallic Co binders that endow them with superior hardness and excellent toughness.Hard metals are widely used as metal cutting and rock drilling tools[1,2].Their hardness is believed to be inversely proportional to the sizes of WC grains^([3]).Grain growth inhibitors are widely employed to achieve smaller grain sizes.
基金
the support from the National Natural Science Foundation of China(Nos.51871058 and 51701170)
Financial support from the Project of Science and Technology Plan of Fujian Province(No.2018J01520)
the Talented Youth Scientist Support Program of the Eyas Program of Fujian Province。
