High temperature mechanical properties of Al 2 O 3 -based ceramic tool material toughened by SiC whiskers and nanoparticles

2017 ◽  
Vol 43 (1) ◽  
pp. 1160-1165 ◽  
Author(s):  
Liu Xuefei ◽  
Liu Hanlian ◽  
Huang Chuanzhen ◽  
Zhao Bin ◽  
Zheng Longwei
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Tool Material ◽  
Ceramic Tool ◽  
High Temperature Mechanical Properties ◽  
Ceramic Tool Material ◽  
Sic Whiskers

Effect of Mechanical Properties of Al2O3/(W,Ti)C Ceramic Tool Material on Its Tribological Characterization

2021 ◽  
Author(s):  
Limei Wang ◽  
Xiaorui Shi ◽  
Bo Wang ◽  
Hanlian Liu ◽  
Chuanzhen Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Friction Coefficient ◽  
High Speed ◽  
Cutting Tools ◽  
Tool Material ◽  
Ceramic Tool ◽  
Tool Materials ◽  
Ceramic Tool Material ◽  
Different Temperatures

Abstract Ceramic cutting tools are mainly used in high-speed dry machining, thus the tool material is in high temperature friction state with the workpiece material during cutting. The tribological characterizations have a direct impact on the cutting performance of the tool. Therefore, tribological characterizations of two kinds of ceramic tool materials with different mechanical properties against hardened steel H13 were compared at the same temperature, one material is Al2O3/(W,Ti)C/Ni with Ni(marked as AWTN), another is Al2O3/(W,Ti)C without Ni(marked as AWT). Also, the variation of tribological characterizations of AWT ceramic tool material with different temperatures was emphatically investigated. The results showed that the average friction coefficients of AWT and AWTN decreased with the increase of sliding speed under the same load, and the friction coefficient of AWT was lower than that of AWTN. Although AWTN material had better flexural strength and fracture toughness than AWT at ambient temperature, yet better hardness of AWT material both at room temperature and high temperature led to the lower friction coefficient and lower wear rate, indicating that the hardness had a greater impact on the wear of ceramic tool materials. The friction coefficient of AWT decreased with the increase of load and increased with the increase of temperature. The wear mechanism of Al2O3/(W,Ti)C ceramic tool material was different at different temperatures. The conclusion of this research had important guiding significance for the selection of cutting tools and cutting parameters in order to improve the machining quality.

Mechanical properties, microstructure and crack healing ability of Al2O3/TiC/TiB2/h-BN@Al2O3 self-lubricating ceramic tool material

2021 ◽  
Vol 47 (10) ◽  
pp. 14551-14560
Author(s):  
Shuai Zhang ◽  
Guangchun Xiao ◽  
Zhaoqiang Chen ◽  
Lianggang Ji ◽  
Chonghai Xu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tool Material ◽  
Crack Healing ◽  
Ceramic Tool ◽  
Ceramic Tool Material

Effects of Nano-Al2O3 on the Mechanical Property and Microstructure of Nano-Micro Composite Self-Lubricating Ceramic Tool Material

2013 ◽  
Vol 770 ◽  
pp. 308-311 ◽  
Author(s):  
Ming Dong Yi ◽  
Chong Hai Xu ◽  
Zhao Qiang Chen ◽  
Guang Yong Wu
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Fracture Toughness ◽  
Flexural Strength ◽  
Tool Material ◽  
Ceramic Tool ◽  
Ceramic Tool Material ◽  
Composite Self ◽  
Microstructure And Mechanical Property ◽  
Grain Refinement Strengthening

A new nanomicro composite self-lubricating ceramic tool material was prepared with vacuum hot pressing technique. The effect of nanoAl2O3 powders on the microstructure and mechanical properties of nanomicro composite self-lubricating ceramic tool material was investigated. With the increase of nanoAl2O3 content, the hardness and fracture toughness first up then down. When the nanoAl2O3 content is 4 vol.%, the flexural strength, hardness and fracture toughness reaches 562 MPa, 8.46 MPa·m1/2 and 18.95 GPa, respectively. The microstructure and mechanical property of nanomicro composite self-lubricating ceramic tool material can be improved by the grain refinement strengthening of nanoAl2O3.

Microstructure Simulation and Toughening Mechanism of Ceramic Tool Material

2011 ◽  
Vol 335-336 ◽  
pp. 688-694
Author(s):  
Xiao Hui Zhu ◽  
Chuan Zhen Huang ◽  
Han Lian Liu ◽  
Bin Zou ◽  
Hong Tao Zhu
Keyword(s):  
Mechanical Properties ◽  
Single Phase ◽  
Three Dimensional ◽  
Tool Material ◽  
Ceramic Tool ◽  
Toughening Mechanism ◽  
C Language ◽  
Finite Element Software ◽  
Microstructure Simulation ◽  
Ceramic Tool Material

Based on the microstructure results of Monte Carlo simulation, a three-dimensional grid model is built up, and imported into the finite element software with C++ language to analyze the mechanical properties of ceramic tool material. The stress field and residual stress of single-phase and multiphase ceramics have been analyzed by the computer simulation technology.

Mechanical properties and microstructure of Al2O3-SiCw ceramic tool material toughened by Si3N4 particles

2020 ◽  
Vol 46 (7) ◽  
pp. 8845-8852 ◽  
Author(s):  
Zhe Wang ◽  
Yue Liu ◽  
Bin Zou ◽  
Chuanzhen Huang ◽  
Kai Xue ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tool Material ◽  
Ceramic Tool ◽  
Ceramic Tool Material

A Study on the Mechanical Properties of Ti(C, N) Based Ceramic Tool Material

2004 ◽  
Vol 471-472 ◽  
pp. 369-373
Author(s):  
Sui Lian Wang ◽  
Li Qiang Xu ◽  
Chuan Zhen Huang ◽  
Han Lian Liu
Keyword(s):  
Mechanical Properties ◽  
Intergranular Fracture ◽  
Hot Pressing ◽  
Tool Material ◽  
Ceramic Tool ◽  
Tool Materials ◽  
Main Fracture ◽  
Ceramic Tool Material ◽  
Fracture Morphologies ◽  
Pressing Technology

Ti(C, N) based ceramic tool materials in the Ti (C0.7N0.3)-(Ni-Co)-Cr3C2-VC system have been made by hot-pressing technology, their mechanical properties and fracture morphologies have been studied under three different fabrication conditions. The results show that the mechanical properties are significantly influenced by fabrication conditions, and the main fracture mode is intergranular fracture.

Mechanical properties and microstructure of Al2O3-TiB2-TiSi2 ceramic tool material

2017 ◽  
Vol 43 (16) ◽  
pp. 14192-14199 ◽  
Author(s):  
Mingshuang Li ◽  
Chuanzhen Huang ◽  
Bin Zhao ◽  
Hanlian Liu ◽  
Jun Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tool Material ◽  
Ceramic Tool ◽  
Ceramic Tool Material
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