Removal and fracture characteristics of cemented tungsten carbide under nanoindenting and nanoscratching

Irwan, Rudy and Huang, Han (2010). Removal and fracture characteristics of cemented tungsten carbide under nanoindenting and nanoscratching. In: Jianhong Zhao, Masanori Kunieda, Guilin Yang and Xue-Ming Yuan, Advances in Precision Engineering. International Conference on Precision Engineering (ICoPE2010 and 13th ICPE), Singapore, Republic of Singapore, (16-20). 28-30 July 2010. doi:10.4028/www.scientific.net/KEM.447-448.16

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Author Irwan, Rudy
Huang, Han
Title of paper Removal and fracture characteristics of cemented tungsten carbide under nanoindenting and nanoscratching
Conference name International Conference on Precision Engineering (ICoPE2010 and 13th ICPE)
Conference location Singapore, Republic of Singapore
Conference dates 28-30 July 2010
Proceedings title Advances in Precision Engineering   Check publisher's open access policy
Journal name Key Engineering Materials   Check publisher's open access policy
Place of Publication Aedermannsdorf, Switzerland
Publisher Trans Tech Publications
Publication Year 2010
Sub-type Fully published paper
DOI 10.4028/www.scientific.net/KEM.447-448.16
ISBN 9780878492565
ISSN 1013-9826
Editor Jianhong Zhao
Masanori Kunieda
Guilin Yang
Xue-Ming Yuan
Volume 447-448
Start page 16
End page 20
Total pages 5
Collection year 2011
Language eng
Abstract/Summary Nanoindenting and nanoscratching were used to investigate removal and fracture characteristics of cemented tungsten carbide (cWC). Nanoindentation results indicated that the elastic modulus and hardness of WC grains were significantly greater than those measured in cobalt binder rich regions, respectively. Few evidences of cracking or fracture were observed on the indented surfaces using both in-situ atomic force microscopy and scanning electron microscopy. However, the pop-in events were observed from indenting load-displacement curves and the corresponding acoustic emissions were detected, indicating the occurrences of brittle fracture. Nanoscratch results demonstrated that similar removal characteristics existed, but cracking was observed in both surface and subsurface of the scratched samples.
Keyword Elastic Modulus
Grinding
Hardness
Removal Mechanism
Tungsten Carbide
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Online since September, 2010

 
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Created: Wed, 24 Nov 2010, 09:27:11 EST by Professor Han Huang on behalf of School of Mechanical and Mining Engineering