Study on Fracture Performance of In Situ Growth Whisker Toughened Composite Ceramic Tool

Xue Wen Chong; Chuan Zhen Huang; Bin Zou; Liang Xu; Guo Long Zhao; Han Lian Liu

doi:10.4028/www.scientific.net/AMR.497.35

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 497Study on Fracture Performance of In Situ Growth...

Study on Fracture Performance of In Situ Growth Whisker Toughened Composite Ceramic Tool

Abstract:

Three kinds of whisker toughened composite ceramic tools were prepared by carbothermal reduction process and their fracture performance was investigated in cutting the quenched 45 steel. The results suggest that the ratio of C to N has an effect on the fracture resistance of ceramic tool, and the whisker in tool material can inhibit the crack propagation and desquamation of grains. At the low cutting speed, the main fracture mode was conchoidal desquamation on the tool rake face and severe oxidation wear and some diffusion wear happened. At the medium cutting speed or high cutting speed, a combination of mechanical load and thermal load applied on the tool and adhesion was caused between workpiece material and tool material, and so the fracture mode was break-off of the cutting edge.

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Periodical:

Advanced Materials Research (Volume 497)

Pages:

35-40

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.497.35

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Online since:

April 2012

Authors:

Xue Wen Chong, Chuan Zhen Huang, Bin Zou, Liang Xu, Guo Long Zhao, Han Lian Liu

Keywords:

Ceramic Tool, Fracture Performance, Mechanism, Tool Fracture

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