Oxidation of Metals

, Volume 66, Issue 5–6, pp 253–268 | Cite as

Oxidation Behavior of In Situ-Synthesized (TiB+TiC)/Ti6242 Composites

  • YeXia Qin
  • Di Zhang
  • WeiJie Lu
  • Wei Pan

The oxidation behaviors of TiB and TiC particle-reinforced, titanium-matrix composites (TMCs) were studied in air at 550–650°C, The oxidation kinetics follow approximately a parabolic rate law. The oxidation rates, which were lower than those of Ti6242, decrease gradually as oxidation proceeds. The oxide scales formed on TMCs were predominantly rutile and α-Al2O3. No B2O3 and other oxides were observed within the oxide scale. The in situ-synthesized TiB and TiC reinforcements can increase the oxidation resistance of TMCs. The oxide scales that formed exhibited excellent spallation resistance under all testing conditions. No scale cracking or spallation could be observed, implying that growth and thermal stresses generated during heating and cooling have been effectively released. The mechanisms of the decrease in oxidation rate and the improvement on spallation resistance are discussed based on microstructure studies.


high-temperature oxidation In Situ-synthesized titanium-matrix composites oxide scale. 



We would like to acknowledge a financial support provided by A Foundation for the Author of National Excellent Doctoral Dissertation of P R China under Grant No: 200332, Research Fund of Science and Technology Commission of Shanghai Municipality under Grant No: 04DZ14002, and ItoYara Foundation.


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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  1. 1.State Key Laboratory of New Ceramics and Fine ProcessingTsinghua UniversityBeijingChina
  2. 2.State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghaiChina

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