Al2O3/(W,Ti)C/CaF2 multi-component graded self-lubricating ceramic cutting tool material

• Published in: International journal of refractory metals & hard materials Vol. 45; pp. 125 - 129
• Main Authors: Xu, C.H., Wu, G.Y., Xiao, G.C., Fang, B.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.07.2014
• Subjects: Cutting performance; Functionally graded ceramic; Mechanical property; Self-lubricating cutting tool; Self-lubricating cutting tool; Functionally graded ceramic; Mechanical property; Cutting performance
• ISSN: 0263-4368; 2213-3917
• DOI: 10.1016/j.ijrmhm.2014.04.006

Since the existed compositional distribution functions are not applicable to the design of functionally graded materials consisting of more than two main components, a multi-component gradient distribution model was proposed during the design process. An advanced Al2O3/(W,Ti)C/CaF2 multi-component graded self-lubricating ceramic cutting tool material was subsequently developed. The flexural strength, hardness, and fracture toughness of the as-developed material were increased by about 25%, 19%, and 6%, respectively, as compared with the corresponding homogeneous material. The cutting tests show that the Al2O3/(W,Ti)C/CaF2 multi-component graded self-lubricating ceramic cutting tool has better wear resistance than the homogeneous cutting tool. •A multi-component gradient distribution model was proposed.•A multi-component graded self-lubricating ceramic tool material was developed.•The tool material has higher mechanical property and cutting performance.