Morphological evolution of transformation products and eutectoid transformation(s) in a hyper-eutectoid Ti-12 at% Cu alloy
Source abstract
Abstract
Abstract Evidences of both sluggish eutectoid and active eutectoid (not suppressible under rapid cooling) transformations have been found for the first time in a single hyper-eutectoid Ti-Cu alloy. Both of these types of eutectoid reactions have been investigated in detail, at different length scales, by coupling scanning electron microscopy (SEM),transmission electron microscopy (TEM) and atom probe tomography (APT). The unique three phase crystallographic relationship between the parent β (bcc) and the two product phases, α (hcp) and Ti2Cu, has been established. The extent of partitioning of the solute (Cu) between the two product phases has been determined by APT and is rationalised in terms of thermodynamic considerations. Based on the observed lattice site correspondence and the extent of solute partitioning, a possible mechanism of active eutectoid transformation is proposed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · Titanium Alloys Microstructure and Properties · Aluminum Alloy Microstructure Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
Show source-provided references
1. The physical metallurgy of titanium alloys10.1016/0502-8205(58)90004-2 ↗
2. Banerjee · 2007
3. Froes · 2015
4. Beta-eutectoid decomposition in rapidly solidified titanium-nickel alloys10.1007/BF02669812 ↗
5. On the eutectoid transformation behaviour of the Ti-Zn system and its metastable phases10.1016/j.jallcom.2017.05.103 ↗
6. Microstructural study of rapidly solidified titanium eutectoid alloys10.1016/0025-5416(88)90164-4 ↗
7. On the decomposition of β phase in some rapidly quenched phase titanium-eutectoid alloys10.1007/BF02647587 ↗
8. Active eutectoid decomposition in Zr-3wt.% Fe10.1016/S1359-6462(98)00491-6 ↗
9. Active eutectoid decomposition in a near-eutectoid zirconium-copper alloy10.1007/BF02811653 ↗
10. The Cu-Ti (Copper-Titanium) system10.1007/BF02880329 ↗
11. Effects of cooling rate on the microstructure and solute partitioning in near eutectoid Ti–Cu alloys10.1080/14786435.2014.913113 ↗
12. Conjugated precipitation of twin-related and Ti2Cu phases in a Ti–25V–3Cu alloy10.1016/j.actamat.2014.10.053 ↗
13. The morphology and substructure of Ti-Cu martensite10.1007/BF02643444 ↗
14. Effect of cooling rate on Ti–Cu eutectoid alloy microstructure10.1016/j.msec.2008.09.007 ↗
15. Microstructural, electrochemical and tribo-electrochemical characterisation of titanium-copper biomedical alloys10.1016/j.corsci.2016.02.014 ↗
16. Electrochemical behavior of centrifuged cast and heat treated Ti–Cu alloys for medical applications10.1016/j.electacta.2009.09.016 ↗
17. A new antibacterial titanium–copper sintered alloy: preparation and antibacterial property10.1016/j.msec.2013.06.016 ↗
18. A survey of eutectoid decomposition in ten Ti-X systems10.1007/BF02661947 ↗
19. Eutectoid decomposition mechanisms in hypo eutectoid Ti-X alloys10.1007/BF01174047 ↗
20. The decomposition of hexagonal martensite in A titanium-copper alloy10.1016/0036-9748(85)90322-9 ↗
21. Competing martensitic, Bainitic,andPearlitic transformations in a hypo-eutectoid Ti-5Cu alloy10.1007/s11661-011-0656-5 ↗
22. Effects of composition and heat treatment on the mechanical behavior of Ti–Cu alloys10.1016/j.matdes.2013.10.050 ↗
23. Heat treatment and mechanical properties of Ti-Cu alloys
24. Hexagonal martensite decomposition and phase precipitation in Ti–Cu alloys10.1016/j.matdes.2011.03.040 ↗
25. Rodrigues-Carvajal · 2000
26. On theories of growth during discontinuous precipitation10.1007/BF02652840 ↗
27. Study of microstructure and precipitates of a Zr-2.5Nb-0.5Cu CANDU spacer material10.1016/j.jnucmat.2016.09.017 ↗
28. The determination of the elastic field of an ellipsoidal inclusion, and related problems
29. Mura · 1987
30. The strain energy of a spheroidal inclusion and its application to B.C.C.-H.C.P. Martensitic transformation10.1016/0001-6160(75)90099-1 ↗
31. Porter · 2015
32. Understanding mechanisms of solid-state phase transformations by probing nuclear material10.1016/j.jnucmat.2017.11.024 ↗
33. Plate-shaped transformation products in zirconium-base alloys10.1007/s11661-997-0178-3 ↗
34. Bainite in steels10.1007/BF02656561 ↗
35. The mechanism of bainite formation in steels10.1016/0001-6160(80)90082-6 ↗