Thermal‐Shock Resistance and Fracture‐Strength Behavior of Two Tool Carbides

Y. W. MAI

doi:10.1111/j.1151-2916.1976.tb09415.x

Thermal‐Shock Resistance and Fracture‐Strength Behavior of Two Tool Carbides

Y. W. MAI

Research output: Journal article publication › Journal article › Academic research › peer-review

26 Citations (Scopus)

Abstract

The thermal‐stress resistance and fracture‐strength behavior of TiC and WC after severe thermal shocking were investigated. The damage‐resistance parameter, (X_Ic/δ_f)², for both carbides was determined over a wide range of loading rates and temperatures. The fracture‐strength behavior of these two carbides in the quenching temperature range of 25° to 800°C follows Has‐selman's model for an instantaneous strength loss at a critical quenching temperature. When WC was shocked at temperatures > 800°C, it exhibited higher retained strengths because of its higher (K_Ic/δ_f)² values at these temperatures. The effects of specimen size and repeated thermal shocks on retained strength and critical quenching temperature for these carbides were also investigated.

Original language	English
Pages (from-to)	491-494
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	59
Issue number	11-12
DOIs	https://doi.org/10.1111/j.1151-2916.1976.tb09415.x
Publication status	Published - Nov 1976
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.1976.tb09415.x

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abstract = "The thermal‐stress resistance and fracture‐strength behavior of TiC and WC after severe thermal shocking were investigated. The damage‐resistance parameter, (XIc/δf)2, for both carbides was determined over a wide range of loading rates and temperatures. The fracture‐strength behavior of these two carbides in the quenching temperature range of 25° to 800°C follows Has‐selman's model for an instantaneous strength loss at a critical quenching temperature. When WC was shocked at temperatures > 800°C, it exhibited higher retained strengths because of its higher (KIc/δf)2 values at these temperatures. The effects of specimen size and repeated thermal shocks on retained strength and critical quenching temperature for these carbides were also investigated.",

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AB - The thermal‐stress resistance and fracture‐strength behavior of TiC and WC after severe thermal shocking were investigated. The damage‐resistance parameter, (XIc/δf)2, for both carbides was determined over a wide range of loading rates and temperatures. The fracture‐strength behavior of these two carbides in the quenching temperature range of 25° to 800°C follows Has‐selman's model for an instantaneous strength loss at a critical quenching temperature. When WC was shocked at temperatures > 800°C, it exhibited higher retained strengths because of its higher (KIc/δf)2 values at these temperatures. The effects of specimen size and repeated thermal shocks on retained strength and critical quenching temperature for these carbides were also investigated.

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JO - Journal of the American Ceramic Society

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ER -

Thermal‐Shock Resistance and Fracture‐Strength Behavior of Two Tool Carbides

Abstract

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