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2003•Transactions of the China Welding InstitutionRequires access

SHS joining of TiAl intermetallics to TiB_2 cermet

Xie Feng-chun

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Abstract

Self-propagating high-temperature synthesis (SHS) is a new technology that is widely applied in many fields. SHS joining of TiAl intermetallic to TiB_2 cermet was studied. It shows that the microstructure of TiAl/ TiB_2 cermet joint was very complex. The TiAl_3 reaction layer in TiAl / interlayer interface and the loop structure of Ti-Al system in interlayer was observed. The poor-Cu layer appeared in TiB_2/interlayer interface.

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What this paper is about

Self-propagating high-temperature synthesis (SHS) is a new technology that is widely applied in many fields. SHS joining of TiAl intermetallic to TiB_2 cermet was studied. It shows that the microstructure of TiAl/ TiB_2 cermet joint was very complex. The TiAl_3 reaction layer in TiAl / interlayer interface and the loop structure of Ti-Al system in interlayer was observed. The poor-Cu layer appeared in TiB_2/interlayer interface.

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Available abstract

Self-propagating high-temperature synthesis (SHS) is a new technology that is widely applied in many fields. SHS joining of TiAl intermetallic to TiB_2 cermet was studied. It shows that the microstructure of TiAl/ TiB_2 cermet joint was very complex. The TiAl_3 reaction layer in TiAl / interlayer interface and the loop structure of Ti-Al system in interlayer was observed. The poor-Cu layer appeared in TiB_2/interlayer interface.

Key concepts: Cermet, Intermetallic, Materials science, Microstructure, Metallurgy, Layer (electronics), FETI, Joint (building)

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