The β'-α' Interaction: a Study of early Stages of Phase Separation in a Fe-20%Cr-6%Al-0.5%Ti Alloy

2011 ◽  
Vol 172-174 ◽  
pp. 315-320
Author(s):  
Carlos Capdevila ◽  
Michael K. Miller ◽  
K.F. Russell ◽  
J. Chao ◽  
F.A. López
Keyword(s):  
Phase Separation ◽  
Atom Probe Tomography ◽  
Temporal Evolution ◽  
Theoretical Calculations ◽  
Three Dimensional ◽  
Atom Probe ◽  
Early Stages ◽  
Β Phase ◽  
Α Phase ◽  
Power Measurements

The temporal evolution of the microstructure resulting from phase separation into Fe-rich (α), Cr-rich (α¢), and Fe(Ti,Al) (β¢) phases of a Fe-20Cr-6Al-0.5Ti alloy has been analyzed by thermoelectric power measurements (TEP). The early stages of decomposition and the evolution of the three-dimensional microstructure have been analyzed by atom probe tomography (APT). The roles of Cr, Al, and Ti during the decomposition process have been investigated in terms of solute partitioning between the phases. Analysis of proximity histograms revealed that significant Al and Ti partitioning occurs, which is consistent with theoretical calculations. The results indicate that as the α-α¢ phase separation proceeds, Al and Ti are rejected into the α phase, which causes the β¢ phase to nucleate on the surface of the α¢ phase.

Early stages of phase separation using three-dimensional atom probe and atomistic modelling

2007 ◽  
Vol 39 (2-3) ◽  
pp. 178-183 ◽  
Author(s):  
Mattias Slabanja ◽  
Johan Angenete ◽  
Krystyna Stiller ◽  
Karin M. Carling ◽  
Göran Wahnström ◽  
...  
Keyword(s):  
Phase Separation ◽  
Three Dimensional ◽  
Atom Probe ◽  
Early Stages ◽  
Atomistic Modelling

Characterization of the Early Stages of Phase Separation by Atom probe Tomography

1999 ◽  
Vol 580 ◽  
Author(s):  
M. K. Miller
Keyword(s):  
Phase Separation ◽  
Atom Probe Tomography ◽  
Atom Probe ◽  
Alloy 718 ◽  
Early Stages ◽  
Nickel Based Superalloy ◽  
Secondary Precipitates ◽  
Isothermal Ageing

AbstractAn atom probe tomography characterization of the early stages of phase separation in the FeCu-Ni system has been performed. The development of the copper-enriched regions into copper precipitates has been investigated during isothermal ageing at 573 K and 673 K for times up to 10,000 h. The formation and growth of the secondary precipitates in the nickel based superalloy, Alloy 718, have been determined during isothermal ageing at 873 K. These secondary precipitates were found to be a mixture of the L12-ordered γ' phase and the DO22-ordered γ” phase.

scholarly journals High-Accuracy Sample Preparation for Three Dimensional Atom Probe Tomography Using Orthogonal Column Layout FIB-SEM and its STEM function

2018 ◽  
Vol 24 (S1) ◽  
pp. 830-831
Author(s):  
Miki Tsuchiya ◽  
Yoshihisa Orai ◽  
Takahiro Sato ◽  
Xin Man ◽  
Junichi Katane ◽  
...  
Keyword(s):  
Sample Preparation ◽  
Atom Probe Tomography ◽  
Three Dimensional ◽  
Atom Probe ◽  
High Accuracy

Early stages ofα−α′phase separation in Fe-Cr alloys: An atomistic study

2009 ◽  
Vol 79 (10) ◽  
Author(s):  
G. Bonny ◽  
D. Terentyev ◽  
L. Malerba ◽  
D. Van Neck
Keyword(s):  
Phase Separation ◽  
Early Stages ◽  
Α Phase ◽  
Atomistic Study

Three-Dimensional Chemical Mapping of a Single Protein in the Hydrated State with Atom Probe Tomography

2020 ◽  
Vol 92 (7) ◽  
pp. 5168-5177 ◽  
Author(s):  
Shi Qiu ◽  
Changxi Zheng ◽  
Vivek Garg ◽  
Yu Chen ◽  
Gediminas Gervinskas ◽  
...  
Keyword(s):  
Atom Probe Tomography ◽  
Three Dimensional ◽  
Atom Probe ◽  
Chemical Mapping ◽  
Single Protein

Three-dimensional doping and diffusion in nano scaled devices as studied by atom probe tomography

2013 ◽  
Vol 24 (27) ◽  
pp. 275705 ◽  
Author(s):  
Ajay Kumar Kambham ◽  
Arul Kumar ◽  
Antonios Florakis ◽  
Wilfried Vandervorst
Keyword(s):  
Atom Probe Tomography ◽  
Three Dimensional ◽  
Atom Probe ◽  
And Diffusion
Sign in / Sign up

Export Citation Format

Share Document