Analysis and characterisation of WC-10Co and AISI 4340 steel bimetal composite produced by powder–solid diffusion bonding

Hasan, M; Zhao, J; Huang, Z; Wei, D; Jiang, Z

Analysis and characterisation of WC-10Co and AISI 4340 steel bimetal composite produced by powder–solid diffusion bonding

Hasan, M Zhao, J Huang, Z Wei, D

Jiang, Z

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Publication Type:: Journal Article
Citation:: International Journal of Advanced Manufacturing Technology, 2019, 103 (9-12), pp. 3247 - 3263
Issue Date:: 2019-08-01

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Field	Value	Language
dc.contributor.author	Hasan, M	en_US
dc.contributor.author	Zhao, J	en_US
dc.contributor.author	Huang, Z	en_US
dc.contributor.author	Wei, D https://orcid.org/0000-0002-4247-8905	en_US
dc.contributor.author	Jiang, Z	en_US
dc.date.issued	2019-08-01	en_US
dc.identifier.citation	International Journal of Advanced Manufacturing Technology, 2019, 103 (9-12), pp. 3247 - 3263	en_US
dc.identifier.issn	0268-3768	en_US
dc.identifier.uri	http://hdl.handle.net/10453/137511
dc.description.abstract	© 2019, Springer-Verlag London Ltd., part of Springer Nature. Cermet and steel material bonding is a challenging task, due to their large difference of physical properties, e.g. coefficient of thermal expansion. In this study, a hot compaction diffusion bonding method was employed to fabricate a small-dimensional bimetallic composite of WC-10Co and high strength AISI 4340 steel, where the cermet was used in powder form and the steel as solid. The bimetal composite was characterised by microstructural analysis and mechanical properties evaluation. The interface microstructure reveals a successful metallurgical bonding between the cermet and steel materials. The influence of sintering temperature (1050–1250 °C) was examined at intervals of 50 °C. This study shows that the properties of sintered powder and the bonding quality with the steel improve with an increase in sintering temperature. A bonding beneficiary reaction layer was observed to grow at the joining interface by mutual diffusion of the alloying elements, which increases with the increasing temperature. The maximum width of the reaction layer observed was 4.13 μm and consists mainly of intermetallic ternary carbides. The bonding shear strength of the interface is found to be slightly higher than claimed in previous studies. The developed bimetal composite could be used in applications where a combination of high strength and hardness is required.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP150102732
dc.relation.ispartof	International Journal of Advanced Manufacturing Technology	en_US
dc.relation.isbasedon	10.1007/s00170-019-03709-y	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Industrial Engineering & Automation	en_US
dc.title	Analysis and characterisation of WC-10Co and AISI 4340 steel bimetal composite produced by powder–solid diffusion bonding	en_US
dc.type	Journal Article
utslib.citation.volume	9-12	en_US
utslib.citation.volume	103	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0910 Manufacturing Engineering	en_US
utslib.for	01 Mathematical Sciences	en_US
utslib.for	08 Information and Computing Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access	*
pubs.issue	9-12	en_US
pubs.publication-status	Published	en_US
pubs.volume	103	en_US

Abstract:

© 2019, Springer-Verlag London Ltd., part of Springer Nature. Cermet and steel material bonding is a challenging task, due to their large difference of physical properties, e.g. coefficient of thermal expansion. In this study, a hot compaction diffusion bonding method was employed to fabricate a small-dimensional bimetallic composite of WC-10Co and high strength AISI 4340 steel, where the cermet was used in powder form and the steel as solid. The bimetal composite was characterised by microstructural analysis and mechanical properties evaluation. The interface microstructure reveals a successful metallurgical bonding between the cermet and steel materials. The influence of sintering temperature (1050–1250 °C) was examined at intervals of 50 °C. This study shows that the properties of sintered powder and the bonding quality with the steel improve with an increase in sintering temperature. A bonding beneficiary reaction layer was observed to grow at the joining interface by mutual diffusion of the alloying elements, which increases with the increasing temperature. The maximum width of the reaction layer observed was 4.13 μm and consists mainly of intermetallic ternary carbides. The bonding shear strength of the interface is found to be slightly higher than claimed in previous studies. The developed bimetal composite could be used in applications where a combination of high strength and hardness is required.

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http://hdl.handle.net/10453/137511