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Book Chapter: Interfacial Strength Characterization in a High-Modulus Low-Density Steel-Based Fe-TiB2 Composite

TitleInterfacial Strength Characterization in a High-Modulus Low-Density Steel-Based Fe-TiB2 Composite
Authors
Issue Date2017
PublisherSpringer
Citation
Interfacial Strength Characterization in a High-Modulus Low-Density Steel-Based Fe-TiB2 Composite. In Ikhmayies, S ... (et al) (Eds.), Characterization of Minerals, Metals, and Materials 2017, p. 453-460. Cham: Springer, 2017 How to Cite?
AbstractThe titanium diboride (TiB2)-reinforced steel composite, designed for automotive applications, exhibits a combination of high isotropic Young’s modulus and low density as compared to existing advanced high strength steels (AHSS). The steel-based composite is produced by in situ precipitation of TiB2 particles during eutectic solidification followed by hot rolling, and its microstructure displays a homogeneous distribution of both large primary TiB2 and small eutectic TiB2 particles in the ferrite matrix. Instead of interfacial debonding, particle cracking is the primary mode of damage, revealing very high interfacial strength. To investigate the intrinsic interfacial strength, a hybrid method combining both nanoindentation and finite element analysis (FEA) was used. A micron-sized sample containing a single crystal TiB2 attached to the ferrite matrix was fabricated by focused iron beam (FIB), and was compressed using nanoindentation with a flat indentation tip. By combining the compression and FEA results, the interfacial strength was therefore determined.
Persistent Identifierhttp://hdl.handle.net/10722/243716
ISBN

 

DC FieldValueLanguage
dc.contributor.authorLi, YZ-
dc.contributor.authorHuang, MX-
dc.date.accessioned2017-08-25T02:58:35Z-
dc.date.available2017-08-25T02:58:35Z-
dc.date.issued2017-
dc.identifier.citationInterfacial Strength Characterization in a High-Modulus Low-Density Steel-Based Fe-TiB2 Composite. In Ikhmayies, S ... (et al) (Eds.), Characterization of Minerals, Metals, and Materials 2017, p. 453-460. Cham: Springer, 2017-
dc.identifier.isbn978-3-319-51381-2-
dc.identifier.urihttp://hdl.handle.net/10722/243716-
dc.description.abstractThe titanium diboride (TiB2)-reinforced steel composite, designed for automotive applications, exhibits a combination of high isotropic Young’s modulus and low density as compared to existing advanced high strength steels (AHSS). The steel-based composite is produced by in situ precipitation of TiB2 particles during eutectic solidification followed by hot rolling, and its microstructure displays a homogeneous distribution of both large primary TiB2 and small eutectic TiB2 particles in the ferrite matrix. Instead of interfacial debonding, particle cracking is the primary mode of damage, revealing very high interfacial strength. To investigate the intrinsic interfacial strength, a hybrid method combining both nanoindentation and finite element analysis (FEA) was used. A micron-sized sample containing a single crystal TiB2 attached to the ferrite matrix was fabricated by focused iron beam (FIB), and was compressed using nanoindentation with a flat indentation tip. By combining the compression and FEA results, the interfacial strength was therefore determined.-
dc.languageeng-
dc.publisherSpringer-
dc.relation.ispartofCharacterization of Minerals, Metals, and Materials 2017-
dc.titleInterfacial Strength Characterization in a High-Modulus Low-Density Steel-Based Fe-TiB2 Composite-
dc.typeBook_Chapter-
dc.identifier.emailHuang, MX: mxhuang@hku.hk-
dc.identifier.authorityHuang, MX=rp01418-
dc.identifier.doi10.1007/978-3-319-51382-9_49-
dc.identifier.hkuros274314-
dc.identifier.spage453-
dc.identifier.epage460-
dc.publisher.placeCham-

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