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Building a continuous cooling transformation diagram of β-CEZ alloy by metallography and electrical resistivity measurements

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Abstract

The phase transformations of Ti-5Al-2Sn-4Zr-4Mo-2Cr-1Fe (β-CEZ) have been studied during continuous cooling after β-solution treatment. For this purpose, electrical resistivity measurements and metallographical examinations have been carried out, and the continuous cooling transformation (CCT) diagram of β-CEZ alloy has been plotted. The different kinds of β-phase decomposition schemes in β-CEZ alloy during continuous cooling have been investigated in detail. Two main morphological features of the α/β structure are involved, depending on the cooling rate: the basket-weave and the colony structures are observed for high and low cooling rates, respectively. For the intermediate cooling rates, the two morphologies coexist. Finally, a generalized scheme of the β → β + α transformation sequences during continuous cooling is presented.

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Author notes

  1. S. Bein (Junior Lecturer)

    Present address: the Metallurgical Laboratory of Conservatoire National des Arts et Métiers (CNAM), France

Authors and Affiliations

  1. CACEMI-CNAM, 75003, Paris, France

    C. Angelier (General Secretary)

  2. LTPCM, ENSEFG, 38000, Grenoble, France

    S. Bein (Junior Lecturer)

  3. the Metallurgical Laboratory of Conservatoire National des Arts et Métiers (CNAM), 75003, Paris, France

    J. Béchet (Assistant Professor)

Authors
  1. C. Angelier
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  2. S. Bein
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  3. J. Béchet
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Angelier, C., Bein, S. & Béchet, J. Building a continuous cooling transformation diagram of β-CEZ alloy by metallography and electrical resistivity measurements. Metall Mater Trans A 28, 2467–2475 (1997). https://doi.org/10.1007/s11661-997-0004-y

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  • DOI: https://doi.org/10.1007/s11661-997-0004-y

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