Preparation of a highly toughened (Ti,W)C-20Ni cermet through in situ formation of solid solution and WC whiskers

Hanjung Kwon; Chang Yul Suh; Wonbaek Kim

doi:10.1016/j.ceramint.2014.11.031

Preparation of a highly toughened (Ti,W)C-20Ni cermet through in situ formation of solid solution and WC whiskers

Hanjung Kwon
, Chang Yul Suh
, Wonbaek Kim^*

^*Corresponding author for this work

Metallurgical System Engineering

Korea Institute of Geoscience and Mineral Resources

Research output: Contribution to journal › Journal article › peer-review

35 Scopus citations

Abstract

A highly toughened TiC-Ni type cermet was fabricated using nanosized TiC and WC powders. Nanosized TiC was synthesized by mechanical alloying and WC by supplementary heat treatment. During sintering with Ni, a solid-solution of (Ti,W)C and WC whiskers were synthesized in situ. A significant improvement of fracture toughness up to 16.56 MPam^1/2 was achieved. The high toughness of the cermet is attributed to the solid-solution strengthening of carbide phase and the WC whisker reinforcement.

Original language	English
Pages (from-to)	4223-4226
Number of pages	4
Journal	Ceramics International
Volume	41
Issue number	3
DOIs	https://doi.org/10.1016/j.ceramint.2014.11.031
State	Published - 2015.04.1

Keywords

Composites Whiskers Toughness and toughening Cutting tools

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10.1016/j.ceramint.2014.11.031

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title = "Preparation of a highly toughened (Ti,W)C-20Ni cermet through in situ formation of solid solution and WC whiskers",

abstract = "A highly toughened TiC-Ni type cermet was fabricated using nanosized TiC and WC powders. Nanosized TiC was synthesized by mechanical alloying and WC by supplementary heat treatment. During sintering with Ni, a solid-solution of (Ti,W)C and WC whiskers were synthesized in situ. A significant improvement of fracture toughness up to 16.56 MPam1/2 was achieved. The high toughness of the cermet is attributed to the solid-solution strengthening of carbide phase and the WC whisker reinforcement.",

keywords = "Composites Whiskers Toughness and toughening Cutting tools",

author = "Hanjung Kwon and Suh, \{Chang Yul\} and Wonbaek Kim",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier Ltd and Techna Group S.r.l.",

year = "2015",

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T1 - Preparation of a highly toughened (Ti,W)C-20Ni cermet through in situ formation of solid solution and WC whiskers

AU - Kwon, Hanjung

AU - Suh, Chang Yul

AU - Kim, Wonbaek

PY - 2015/4/1

Y1 - 2015/4/1

N2 - A highly toughened TiC-Ni type cermet was fabricated using nanosized TiC and WC powders. Nanosized TiC was synthesized by mechanical alloying and WC by supplementary heat treatment. During sintering with Ni, a solid-solution of (Ti,W)C and WC whiskers were synthesized in situ. A significant improvement of fracture toughness up to 16.56 MPam1/2 was achieved. The high toughness of the cermet is attributed to the solid-solution strengthening of carbide phase and the WC whisker reinforcement.

AB - A highly toughened TiC-Ni type cermet was fabricated using nanosized TiC and WC powders. Nanosized TiC was synthesized by mechanical alloying and WC by supplementary heat treatment. During sintering with Ni, a solid-solution of (Ti,W)C and WC whiskers were synthesized in situ. A significant improvement of fracture toughness up to 16.56 MPam1/2 was achieved. The high toughness of the cermet is attributed to the solid-solution strengthening of carbide phase and the WC whisker reinforcement.

KW - Composites Whiskers Toughness and toughening Cutting tools

UR - https://www.scopus.com/pages/publications/84921796867

U2 - 10.1016/j.ceramint.2014.11.031

DO - 10.1016/j.ceramint.2014.11.031

M3 - Journal article

AN - SCOPUS:84921796867

SN - 0272-8842

VL - 41

SP - 4223

EP - 4226

JO - Ceramics International

JF - Ceramics International

IS - 3

ER -

Preparation of a highly toughened (Ti,W)C-20Ni cermet through in situ formation of solid solution and WC whiskers

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Keywords

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