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Deformation mechanism in nanoindentation of Ti63.375Fe 34.125Sn2.5 alloy

Conference Paper


Abstract


  • Ti63.375Fe34.125Sn2.5 alloy was fabricated by arc melting. In this study nanoindentation technology has been used to investigate the mechanical properties of the main component phases (TiFe and β-Ti). It has been found that the β-Ti and the TiFe phases have close values of Young modulus and hardness. The cross section beneath the indent was cut out by focus ion bean (FIB) and analysed by transmission electron microscopy (TEM). It was found that the high strength and limited plasticity of Ti 63.375Fe34.125Sn2.5 alloy are related to the interaction between dislocation and phase boundary. Phase boundaries stop the dislocation movement in most simulations. Dislocation only can pass through phase interfaces when the conjoint β-Ti and the TiFe phase are in particular orientation relationships.

Publication Date


  • 2012

Citation


  • Cheng, K., Lu, C., Tieu, K., Zhang, L., & Sun, Y. (2012). Deformation mechanism in nanoindentation of Ti63.375Fe 34.125Sn2.5 alloy. In TMS Annual Meeting Vol. 1 (pp. 971-977). doi:10.1002/9781118356074.ch122

Scopus Eid


  • 2-s2.0-84860849977

Web Of Science Accession Number


Start Page


  • 971

End Page


  • 977

Volume


  • 1

Abstract


  • Ti63.375Fe34.125Sn2.5 alloy was fabricated by arc melting. In this study nanoindentation technology has been used to investigate the mechanical properties of the main component phases (TiFe and β-Ti). It has been found that the β-Ti and the TiFe phases have close values of Young modulus and hardness. The cross section beneath the indent was cut out by focus ion bean (FIB) and analysed by transmission electron microscopy (TEM). It was found that the high strength and limited plasticity of Ti 63.375Fe34.125Sn2.5 alloy are related to the interaction between dislocation and phase boundary. Phase boundaries stop the dislocation movement in most simulations. Dislocation only can pass through phase interfaces when the conjoint β-Ti and the TiFe phase are in particular orientation relationships.

Publication Date


  • 2012

Citation


  • Cheng, K., Lu, C., Tieu, K., Zhang, L., & Sun, Y. (2012). Deformation mechanism in nanoindentation of Ti63.375Fe 34.125Sn2.5 alloy. In TMS Annual Meeting Vol. 1 (pp. 971-977). doi:10.1002/9781118356074.ch122

Scopus Eid


  • 2-s2.0-84860849977

Web Of Science Accession Number


Start Page


  • 971

End Page


  • 977

Volume


  • 1