TY - GEN
T1 - Analysis of β´ Cu4Ti precipitation in Cu-Ti alloys by conventional and diffusion-couple methods
AU - Hernandez-Santiago, Felipe
AU - Lopez-Hirata, Victor M.
AU - Hernandez-Duran, Pamela E.
AU - Saucedo-Muñoz, Maribel L.
AU - Avila-Davila, Erika O.
N1 - Publisher Copyright:
© The Minerals, Metals & Materials Society 2017.
PY - 2017
Y1 - 2017
N2 - An analysis of the Cu4Ti precipitation process was carried out in binary Cu-Ti alloys using the conventional method and subsequently employing a diffusion-couple based method, known as the Macroscopic-Gradient Method. The phase separation took place via the mechanism of spinodal decomposition at early stages of aging. The precipitation of the β´ (Cu4Ti) phase preceded to that of the β (Cu3Ti) phase, which is formed by cellular precipitation. The highest hardness and fastest precipitation kinetics occurred at aging of 400 and 600 °C, respectively. In the case of the macroscopic gradient method, a diffusion couple of Cu-4 wt. Ti alloys and pure copper was prepared by a diffusion annealing. This analysis enabled to determine the equilibrium and coherent lines in this alloy system. The Gibbs-Thomson equation was verified for this type of precipitation.
AB - An analysis of the Cu4Ti precipitation process was carried out in binary Cu-Ti alloys using the conventional method and subsequently employing a diffusion-couple based method, known as the Macroscopic-Gradient Method. The phase separation took place via the mechanism of spinodal decomposition at early stages of aging. The precipitation of the β´ (Cu4Ti) phase preceded to that of the β (Cu3Ti) phase, which is formed by cellular precipitation. The highest hardness and fastest precipitation kinetics occurred at aging of 400 and 600 °C, respectively. In the case of the macroscopic gradient method, a diffusion couple of Cu-4 wt. Ti alloys and pure copper was prepared by a diffusion annealing. This analysis enabled to determine the equilibrium and coherent lines in this alloy system. The Gibbs-Thomson equation was verified for this type of precipitation.
KW - Age hardening
KW - Alloys
KW - Cu-Ti
KW - Cuti β´ precipitation
KW - Diffusion-couple
UR - http://www.scopus.com/inward/record.url?scp=85042380621&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-51493-2_75
DO - 10.1007/978-3-319-51493-2_75
M3 - Contribución a la conferencia
SN - 9783319514925
T3 - Minerals, Metals and Materials Series
SP - 783
EP - 789
BT - TMS 2017 146th Annual Meeting
PB - Springer International Publishing
T2 - 146th Annual Meeting and Exhibition Supplemental, TMS 2017
Y2 - 26 February 2017 through 2 March 2017
ER -