Electric-Discharge Compaction of Nanocrystalline WC-10%Co Powders

Acta Metall Sin

2004, Vol. 40

Issue (9): 1000-1004 DOI:

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Electric-Discharge Compaction of Nanocrystalline WC-10%Co Powders

WU Xiyong; ZHANG Wei; WANG Wei; YANG Fei; MIN Jiayuan; GUO Jingdong

Shenyang National Laboratory for Materials Science; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110016

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WU Xiyong; ZHANG Wei; WANG Wei; YANG Fei; MIN Jiayuan; GUO Jingdong. Electric-Discharge Compaction of Nanocrystalline WC-10%Co Powders. Acta Metall Sin, 2004, 40(9): 1000-1004 .

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Abstract WC-10%Co (mass fraction) cemented carbide with an average grain size of 120 nm are fabricated by means of electric-discharge compacting (EDC) the nano-crystalline WC-10%Co powders which were synthesized by spray conversion process (SCP). Microstructure and mechanical properties of the cemented carbide are investigated. Because of short holding time during EDC, the grain growth is retarded. It is found that the dispersed micro-size pores are contributed to the high fracture toughness of the samples besides the bridging ligament mechanism.

Key words: WC-Co nano-crystalline material electric-discharge compacting (EDC)

Received: 12 August 2003

ZTFLH:	TG135.5
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	WU Xiyong
	ZHANG Wei
	WANG Wei
	YANG Fei
	MIN Jiayuan
	GUO Jingdong

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2004/V40/I9/1000

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