Competing martensitic, bainitic, and pearlitic transformations in a hypoeutectoid Ti-5Cu alloy

A. Devaraj; S. Nag; B. C. Muddle; R. Banerjee

doi:10.1007/s11661-011-0656-5

Competing martensitic, bainitic, and pearlitic transformations in a hypoeutectoid Ti-5Cu alloy

A. Devaraj, S. Nag, B. C. Muddle, R. Banerjee

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

This article discusses the competing mechanisms of martensite formation vs eutectoid decomposition via pearlitic or bainitic mechanisms during continuous cooling of a Ti-5 wt pct Cu hypoeutectoid alloy, which falls under the category of active eutectoid systems. Faster cooling rates result in a mixed microstructure of nanoscale bainite consisting of a far-from-equilibrium Ti ₂Cu phase and martensitic alpha plates, as determined from three-dimensional atom probe (3DAP) coupled with energy-filtered transmission electron microscopy (EFTEM). Slower cooling resulted in near-equilibrium eutectoid-based microstructures.

Original language	English
Pages (from-to)	1139-1143
Number of pages	5
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	42
Issue number	5
DOIs	https://doi.org/10.1007/s11661-011-0656-5
State	Published - May 2011
Externally published	Yes

Funding

This work was supported, in part, by the National Science Foundation, Division of Materials Research, under Award No. 6701956. The authors also gratefully acknowledge the use of experimental facilities at the Center for Advanced Research and Technology (CART) at the University of North Texas.

Funders	Funder number
National Science Foundation
Division of Materials Research	6701956

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Competing martensitic, bainitic, and pearlitic transformations in a hypoeutectoid Ti-5Cu alloy

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