Propagation of shear bands in Ti66.1Cu8Ni4.8Sn7.2Nb13.9 nanostructure-dendrite composite during deformation
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- K. B. Kim
- Technische Universität Darmstadt FG Physikalische Metallkunde, FB 11 Material- und Geowissenschaften, , Petersenstraße 23, D-64287 Darmstadt, Germany
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- J. Das
- Technische Universität Darmstadt FG Physikalische Metallkunde, FB 11 Material- und Geowissenschaften, , Petersenstraße 23, D-64287 Darmstadt, Germany
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- F. Baier
- Technische Universität Darmstadt FG Physikalische Metallkunde, FB 11 Material- und Geowissenschaften, , Petersenstraße 23, D-64287 Darmstadt, Germany
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- J. Eckert
- Technische Universität Darmstadt FG Physikalische Metallkunde, FB 11 Material- und Geowissenschaften, , Petersenstraße 23, D-64287 Darmstadt, Germany
書誌事項
- 公開日
- 2005-04-20
- DOI
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- 10.1063/1.1920424
- 公開者
- AIP Publishing
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説明
<jats:p>During deformation of Ti66.1Cu8Ni4.8Sn7.2Nb13.9 nanostructure-dendrite composite, primary and secondary shear bands form under perpendicular orientation. Detailed investigation of the microstructure of deformed specimens reveals deformed body-centered-cubic (bcc) β-Ti dendrites forming a stepped morphology at the interfaces between the bcc β-Ti dendrites and the nanostructured matrix, consisting of hexagonal close packed (hcp) α-Ti and body-centered-tetragonal (bct) Ti2Cu phases. In the nanostructured matrix, the primary shear bands pass through coherent grain boundaries between the hcp α-Ti and the bct Ti2Cu phases. In contrast, the secondary shear bands in the nanostructured matrix are arrested by sandwiched nanoscale grains of the hcp α-Ti and bct Ti2Cu phases.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 86 (17), 2005-04-20
AIP Publishing