EFFECT OF ZIRCONIUM CONTENT ON PRECIPITATION OF SILICIDE IN TI-1100 ALLOY

Acta Metall Sin

2006, Vol. 42

Issue (7): 770-776 DOI:

Research Articles

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EFFECT OF ZIRCONIUM CONTENT ON PRECIPITATION OF SILICIDE IN TI-1100 ALLOY

XU Feng; LI Geping; YANG Rui M. Varlioglu; P. Nash

Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110016

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XU Feng; LI Geping; YANG Rui M. Varlioglu; P. Nash. EFFECT OF ZIRCONIUM CONTENT ON PRECIPITATION OF SILICIDE IN TI-1100 ALLOY. Acta Metall Sin, 2006, 42(7): 770-776 .

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Abstract Morphology and distribution of silicide in Ti-1100 alloy with different zirconium content were observed by TEM. Isopleths at 0.45wt %( 0.76at %) of the Ti–Zr–Si system for Ti-1100 alloy was deduced according to the TEM results, isothermal sections of Ti–Zr–Si system phase diagram and concerned references. Both the TEM observation and the Isopleths show that silicide resolve temperature increases as Zr content increase. Moreover, as Zr content increased, dissolvability of silicon in titanium declines. These changes result in silicide coarsening, silicide volume fraction increase and precipitation position change.

Key words: titanium alloy silicide

Received: 04 December 2005

ZTFLH:

TG113.2

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	YANG Rui M. Varlioglu
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