Cutting performance and failure mechanisms of an Al2O3/WC/TiC micro- nano-composite ceramic tool

An Al2O3-based composite ceramic cutting tool material reinforced with (W, Ti)C micro-particles and Al2O3 micro-nano-particles was fabricated by using hot-pressing technique, the composite was denoted as AWT. The cutting performance, failure modes and mechanisms of the AWT micro-nano-composite ceramic tool were investigated via continuous turning of hardened AISI 1045 steel in comparison with those of an Al2O3/(W, Ti)C micro-composite ceramic tool SG-4 and a cemented carbide tool YS8. Worn and fractured surfaces of the cutting tools were characterized by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The results of continuous turning revealed that tool lifetime of the AWT ceramic tool was higher than that of the SG-4 and YS8 tools at all the tested cutting speeds. The longer tool life of the AWT composite ceramic tool was attributed to its synergistic strengthening/toughening mechanisms induced by the (W, Ti)C micro-particles and Al2O3 nano-particles.

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Cutting Performance and Tool Failure in Intermittent Turning Processes of an Al2O3-Based Micro-Nano-Composite Ceramic Tool

Materials Science Forum ◽

10.4028/www.scientific.net/msf.723.56 ◽

2012 ◽

Vol 723 ◽

pp. 56-61

Author(s):

Yong Hui Zhou ◽

Jun Zhao ◽

Xiao Bin Cui

Keyword(s):

Failure Modes ◽

Composite Ceramic ◽

Cutting Performance ◽

Nano Particles ◽

Ceramic Tool ◽

Nano Composite ◽

Micro Particles ◽

Intermittent Turning ◽

Shock Resistance ◽

1045 Steel

An Al2O3-based micro-nano-composite ceramic cutting tool material reinforced with (W, Ti)C micro-particles and Al2O3 micro-nano-particles was fabricated by using hot-pressing technique, the composite was denoted as AWT. The cutting performance, failure modes and mechanisms of the AWT micro-nano-composite ceramic tool were investigated via intermittent turning of hardened AISI 1045 steel (44~48 HRC) in comparison with those of an Al2O3/(W, Ti)C micro-composite ceramic tool SG-4 and a cemented carbide tool YS8. Worn and fractured surfaces of the cutting tools were characterized by scanning electron microscopy (SEM). The results of intermittent turning revealed that shock resistance of the AWT ceramic tool was higher than that of the SG-4 and YS8 tools at all the tested cutting speeds. The excellent shock resistance of the AWT composite ceramic tool was attributed to its synergistic strengthening/toughening mechanisms induced by the (W, Ti)C micro-particles and Al2O3 nano-particles.

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Cutting performance and life prediction of an Al2O3/TiC micro–nano-composite ceramic tool when machining austenitic stainless steel

Ceramics International ◽

10.1016/j.ceramint.2015.02.012 ◽

2015 ◽

Vol 41 (5) ◽

pp. 7059-7065 ◽

Cited By ~ 38

Author(s):

Zengbin Yin ◽

Chuanzhen Huang ◽

Juntang Yuan ◽

Bin Zou ◽

Hanlian Liu ◽

...

Keyword(s):

Stainless Steel ◽

Austenitic Stainless Steel ◽

Life Prediction ◽

Composite Ceramic ◽

Cutting Performance ◽

Ceramic Tool ◽

Nano Composite

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Influences of Sintering Process on the Microstructure and Mechanical Behavior of ZrO2 Nano-Composite Ceramic Tool and Die Material

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.154-155.1356 ◽

2010 ◽

Vol 154-155 ◽

pp. 1356-1360 ◽

Cited By ~ 1

Author(s):

Ming Dong Yi ◽

Chong Hai Xu ◽

Jing Jie Zhang ◽

Zhen Yu Jiang

Keyword(s):

Mechanical Properties ◽

Ceramic Material ◽

Composite Ceramic ◽

Sintering Process ◽

Ceramic Tool ◽

Nano Composite ◽

Pure Zro2 ◽

Die Materials ◽

Die Material ◽

Composite Ceramic Material

A new ZrO2 nano-composite ceramic tool and die material was prepared with vacuum hot pressing technique. The effects of sintering parameters on the nano-composite ceramic tool and die materials were studied. The results indicated that the mechanical properties of ZrO2 nano-composite ceramic tool and die material with the additions of TiB2 and Al2O3 are higher than that of the pure ZrO2 ceramic material. Sintering at 1100 for 120min could improve the density and mechanical properties of ZrO2 nano-composite ceramic material. The flexural strength, fracture toughness and hardness with the optimum sintering parameters can reach 878MPa, 9.54MPa•m1/2 and 13.48GPa, respectively, obviously higher than that with non-optimum sintering parameters.

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