Displacive Phase Transformations in Nanometric Dimension
The present work delves into the role of parent phase size on occurrence of displacive phase transformation with emphasis on transformation in nanometric dimension. Beta phase with compositions suitable for displacive martensitic and omega phase transformations has been generated in different length...
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| Veröffentlicht in: | Transactions of the Indian Institute of Metals 2022-04, Vol.75 (4), p.879-885 |
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| creator | Neogy, S. Srivastava, D. |
| description | The present work delves into the role of parent phase size on occurrence of displacive phase transformation with emphasis on transformation in nanometric dimension. Beta phase with compositions suitable for displacive martensitic and omega phase transformations has been generated in different length scales in a Zr-1 wt.% Nb alloy through heat treatment. The beta phase distribution was in the form of (i) patches at grain boundaries and tri-junctions and (ii) needle-shaped intragranular precipitates. The transformation inside the beta phase following quenching has been probed by transmission electron microscopy. Very fine beta precipitates remained untransformed despite their compositions falling in the domain of martensitic, omega phase transformations. The parent phase size dependency was more prevalent in the case of martensitic transformation. |
| doi_str_mv | 10.1007/s12666-021-02505-1 |
| format | Article |
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Beta phase with compositions suitable for displacive martensitic and omega phase transformations has been generated in different length scales in a Zr-1 wt.% Nb alloy through heat treatment. The beta phase distribution was in the form of (i) patches at grain boundaries and tri-junctions and (ii) needle-shaped intragranular precipitates. The transformation inside the beta phase following quenching has been probed by transmission electron microscopy. Very fine beta precipitates remained untransformed despite their compositions falling in the domain of martensitic, omega phase transformations. 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| source | Springer Nature - Complete Springer Journals |
| subjects | Beta phase Chemical precipitation Chemistry and Materials Science Composition Corrosion and Coatings Displacement Grain boundaries Heat treating Heat treatment Martensitic transformations Materials Science Metallic Materials Niobium base alloys Original Article Phase distribution Phase transitions Precipitates Tribology Zirconium |
| title | Displacive Phase Transformations in Nanometric Dimension |
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