The Influence of Ni Addition on the Mechanical Properties and Microstructures of Al2O3-TiN-TiC Ceramic Tool Materials
Al2O3-TiN-TiC ceramic tool materials with different Ni content were fabricated by hot-pressing technique.Mechanical properties such as flexural strength,Vickers hardness and fracture toughness were obtained by three-point-bending test and Vickers indentation method.The microstructures of the sintered body were observed by scanning electron microscopy(SEM).The effects of Ni content on the mechanical properties and the microstructures of Al203-TiN-TiC were investigated.The results indicated that the addition of Ni could change the topography of the microstructure which displayed various core-shell structures.Moreover,the fracture mode changed with the increment of Ni content.When the addition of Ni was 3vol%,the flexural strength and fracture toughness were the greatest and the improvement could be explained by the unique microstructures of sintered bodies.
Ni addition Mechanical properties Microstructure Al2O3-TiN-TiC ceramic tool materials
Fei Yuhuan Huang Chuanzhen Liu Hanlian Zou Bin li Yongde
College of Engineering,Qufu Normal University,Rizhao 276826,P.R.China Center for Advanced Jet Engineering Technologies(CaJET),School of Mechanical Engineering,Shandong Un School of material science and engineering,Hebei University of Engineering,Handan 056038,P.R.China
国际会议
第十七届国际制造会议(The 17th International Manufacturing Conference in China)(IMCC 2017))
深圳
英文
1-6
2017-11-23（万方平台首次上网日期，不代表论文的发表时间）