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2006•Transactions of the China Welding InstitutionRequires access

Effect of composition of interlayer on TiAl/TiB_2 cermet self-propagating high-temperature synthesis joint

Xie Feng-chun

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Abstract

SHS joining of TiAl intermetallic to TiB_2 cermet was studied.The study concentrated on the effect of composition of interlayer on TiAl/TiB_2 cermet joint.It was shown that the releasing heat became different when using different interlayer.As a result,the microstructure of TiAl/ TiB_2 cermet joint changed.The TiAl_3 reaction layer in TiAl / interlayer interface and the poor-Cu layer appeared in TiB_2/interlayer interface became wider with the increase of reaction releasing heat.The loop structure in interlayer changed correspondingly.

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What this paper is about

SHS joining of TiAl intermetallic to TiB_2 cermet was studied.The study concentrated on the effect of composition of interlayer on TiAl/TiB_2 cermet joint.It was shown that the releasing heat became different when using different interlayer.As a result,the microstructure of TiAl/ TiB_2 cermet joint changed.The TiAl_3 reaction layer in TiAl / interlayer interface and the poor-Cu layer appeared in TiB_2/interlayer interface became wider with the increase of reaction releasing heat.The loop structure in interlayer changed correspondingly.

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Available abstract

SHS joining of TiAl intermetallic to TiB_2 cermet was studied.The study concentrated on the effect of composition of interlayer on TiAl/TiB_2 cermet joint.It was shown that the releasing heat became different when using different interlayer.As a result,the microstructure of TiAl/ TiB_2 cermet joint changed.The TiAl_3 reaction layer in TiAl / interlayer interface and the poor-Cu layer appeared in TiB_2/interlayer interface became wider with the increase of reaction releasing heat.The loop structure in interlayer changed correspondingly.

Key concepts: Cermet, Intermetallic, Materials science, Microstructure, Joint (building), Metallurgy, Layer (electronics), Self-propagating high-temperature synthesis

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