Gibbs–Thomson relationship for the precipitation in Cu–Ti alloys

Hernández-Santiago, Felipe; López-Hirata, Vı́ctor M.; Saucedo‐Muñoz, Maribel L.; Dorantes-Rosales, Héctor J.

doi:10.1016/j.matchar.2006.05.008

Cited by 7 publications

(3 citation statements)

References 12 publications

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“…1-3, respectively. The β´ precipitates has a cuboid morphology and they are aligned on the <100> direction of the α phase matrix for all aging temperatures because of its low value of elastic-strain energy 7,19 . As aging progresses, the morphology changes to plates also aligned with respect to the matrix phase, Figs.…”

Section: A) Temporal Evolution Of Precipitationmentioning

confidence: 99%

Analysis of β´(Cu4Ti) Precipitation During Isothermal Aging of a Cu-4wt.%Ti Alloy

et al. 2018

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This work analyzed experimental and numerically the growth kinetics of β´precipitation of a Cu4wt.%Ti alloy after aging at 400, 500 and 600 °C for times from 0.0166 h to 200 h. Results indicated that the precipitation process is almost controlled by nucleation and growth during aging at 400 °C, originating a slow growth kinetics of precipitation. In contrast, the coarsening of precipitates dominates the precipitation process during aging at 500 and 600 °C. The interfacial energy of interface between the a matrix phase and β´ precipitates was determined to be about 0.1135, 0.0980 and 0.0725 Jm -2 for aging at 400, 500 and 600 °C, respectively. These values suggest a coherent interface which is in agreement with the flat faces of β´ cuboid precipitates. Calculated Time-Temperature-Precipitation diagram for the β´ precipitation indicated good agreement with experimental results. Precipitation hardening was higher for the slower growth kinetics of precipitation.

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Section: A) Temporal Evolution Of Precipitationmentioning

confidence: 99%

Analysis of β´(Cu4Ti) Precipitation During Isothermal Aging of a Cu-4wt.%Ti Alloy

et al. 2018

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“…It can be noticed that the size of precipitates decreases with the increase in Cr content as expected by the Gibbs-Thomson effect. 8,9) That is, the smaller Cr-rich particles have a higher solubility in the Ferich matrix. Besides, the Cr-rich phase volume percentage was determined to be about 24, 17 and 12% for the points P1, P2 and P3, respectively.…”

Section: Microstructural Evolutionmentioning

confidence: 99%

“…The diffusion-couples have shown to be a good alternative for studying phase transformation in different alloy systems. 8,9) For example, Diffusion-couples were used to study the precipitation process in binary alloys, called macroscopic composition gradient method. This method enables to determine solubility limits and phase equilibria and it is based on the microstructural observation of different composition alloys formed by a continuous composition gradient.…”

Section: Introductionmentioning

confidence: 99%