Bending behavior of HVOF produced WC-17Co coating: Investigated by acoustic emission

被引：15

作者：

Bouaricha, S ^{[1
]}

Legoux, JG ^{[1
]}

Marcoux, P ^{[1
]}

机构：

[1] Natl Res Council Canada, Boucherville, PQ J4B 6Y4, Canada

来源：

JOURNAL OF THERMAL SPRAY TECHNOLOGY | 2004年 / 13卷 / 03期

关键词：

acoustic emission; cermet coatings; four-point bending test; HVOF; thermal spray; WC-Co;

D O I：

10.1361/10599630419328

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

A four-point bend test using acoustic emission (AE) was used to compare coating properties under mechanical solicitation, mainly the toughness and spalling behavior. Coatings are made from the same material; Sulzer-Metco (Westbury, NY) 2005NS (WC-17Co) sprayed with an HVOF gun with different spray parameters. Coatings deposited on thin rectangular substrates were first bent in tension then in compression. AE features like the event number, energy per event, and cumulative energy were used to assess the damages in the coatings. The results are analyzed in relation to the coating microstructure.

引用

页码：405 / 414

页数：10

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