Quantitative measurement of carbon content in Fe–C binary alloys by atom probe tomography

2012 ◽  
Vol 67 (12) ◽  
pp. 999-1002 ◽  
Author(s):  
Goro Miyamoto ◽  
Kunio Shinbo ◽  
Tadashi Furuhara
Keyword(s):  
Carbon Content ◽  
Atom Probe Tomography ◽  
Quantitative Measurement ◽  
Binary Alloys ◽  
Atom Probe

Slow Bainite: an Opportunity to Determine the Carbon Content of the Bainitic Ferrite during Growth

2011 ◽  
Vol 172-174 ◽  
pp. 111-116 ◽  
Author(s):  
Francisca García Caballero ◽  
Michael K. Miller ◽  
Carlos García-Mateo
Keyword(s):  
Solid Solution ◽  
Carbon Content ◽  
Atom Probe Tomography ◽  
Early Stage ◽  
Bainitic Ferrite ◽  
Atom Probe ◽  
Transformation Kinetics ◽  
Bainite Transformation ◽  
Parent Austenite ◽  
Kinetics Of

The amount of carbon in solid solution in bainitic ferrite at the early stage of transformation has been directly determined by atom probe tomography at 200 °C, taking advantage of the extremely slow transformation kinetics of a novel nanocrystalline steel. Results demonstrated that the original bainitic ferrite retains much of the carbon content of the parent austenite providing strong evidence that bainite transformation is essentially displacive in nature.

scholarly journals Effect of Stress on Spinodal Decomposition in Binary Alloys: Atomistic Modeling and Atom Probe Tomography

2021 ◽  
Author(s):  
Alexander Dahlström ◽  
Frederic Danoix ◽  
Peter Hedström ◽  
Joakim Odqvist ◽  
Helena Zapolsky
Keyword(s):  
Tensile Stress ◽  
Spinodal Decomposition ◽  
Atom Probe Tomography ◽  
Critical Phenomenon ◽  
Binary Alloys ◽  
Alloy System ◽  
Atom Probe ◽  
Stress Effect ◽  
Atomistic Modeling ◽  
Characteristic Wavelength

AbstractSelf-organizing nanostructure evolution through spinodal decomposition is a critical phenomenon determining the properties of many materials. Here, we study the influence of stress on the morphology of the nanostructure in binary alloys using atomistic modeling and atom probe tomography. The atomistic modeling is based on the quasi-particle approach, and it is compared to quantitative three-dimensional (3-D) atom mapping results. It is found that the magnitude of the stress and the crystallographic direction of the applied stress directly affect the development of spinodal decomposition and the nanostructure morphology. The modulated nanostructure of the binary bcc alloy system is quantified by a characteristic wavelength, $$ \lambda $$ λ . From modeling the tensile stress effect on the A-35 at. pct B system, we find that $$ \lambda _{001}< \, \lambda _{111}< \, \lambda _{101}< \, \lambda _{112}$$ λ 001 < λ 111 < λ 101 < λ 112 and the same trend are observed in the experimental measurements on an Fe-35 at. pct Cr alloy. Furthermore, the effect of applied compressive and shear stress states differs from the effect of the applied tensile stress regarding morphological anisotropy.

Influence of multi-hit capability on quantitative measurement of NiPtSi thin film with laser-assisted atom probe tomography

2012 ◽  
Vol 259 ◽  
pp. 726-730 ◽  
Author(s):  
T. Kinno ◽  
H. Akutsu ◽  
M. Tomita ◽  
S. Kawanaka ◽  
T. Sonehara ◽  
...  
Keyword(s):  
Thin Film ◽  
Atom Probe Tomography ◽  
Quantitative Measurement ◽  
Atom Probe

PREDICTION OF THE DELAMINATION IN THE PEARLITIC STEEL FILAMENTS BY 3 DIMENAIONAL ATOM PROBE TOMOGRAPHY

2008 ◽  
Vol 22 (31n32) ◽  
pp. 5471-5476 ◽  
Author(s):  
Y. S. YANG ◽  
C. G. PARK ◽  
J. G. BAE ◽  
D. Y. BAN
Keyword(s):  
Carbon Content ◽  
Atom Probe Tomography ◽  
Critical Factor ◽  
Pearlitic Steel ◽  
Atom Probe ◽  
3 Dimensional ◽  
Analysis Techniques ◽  
Atom Probes ◽  
Advanced Analysis ◽  
Factor Governing

We have tried to find out the critical factor governing the delamination in the pearlitic steel filaments. Steel filaments were fabricated depending on the carbon content from 0.72 to 1.02 wt.%. The delamination was identified by a torsion tester specially designed for thin-sized wires and scanning electron microscopy. The results showed that as the carbon content increased, the number of twists to fracture decreased, and the delamination only occurred in the filament with 1.02 wt .% C . In order to elucidate this behavior, the microstructure of the filaments was observed using advanced analysis techniques such as 3 dimensional atom probes tomography (3-DAPT).

Quantitative analysis of carbon content in cementite in steel by atom probe tomography

2011 ◽  
Vol 111 (8) ◽  
pp. 1233-1238 ◽  
Author(s):  
J. Takahashi ◽  
K. Kawakami ◽  
Y. Kobayashi
Keyword(s):  
Quantitative Analysis ◽  
Carbon Content ◽  
Atom Probe Tomography ◽  
Atom Probe

scholarly journals Correlating nanoscale secondary ion mass spectrometry and atom probe tomography analysis of uranium enrichment in metallic nuclear fuel

The Analyst ◽  
2021 ◽  
Vol 146 (1) ◽  
pp. 69-74
Author(s):  
Elizabeth Kautz ◽  
John Cliff ◽  
Timothy Lach ◽  
Dallas Reilly ◽  
Arun Devaraj
Keyword(s):  
Mass Spectrometry ◽  
Nuclear Fuel ◽  
Atom Probe Tomography ◽  
Secondary Ion Mass Spectrometry ◽  
Atom Probe ◽  
Uranium Enrichment ◽  
Length Scales ◽  
Atom Probe Tomography Analysis ◽  
Secondary Ion ◽  
Tomography Analysis

235U enrichment in a metallic nuclear fuel was measured via NanoSIMS and APT, allowing for a direct comparison of enrichment across length scales and resolutions.

scholarly journals Inside Front Cover: Atom Probe Tomography of Encapsulated Hydroxyapatite Nanoparticles (Small Methods 2/2021)

Small Methods ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 2170004
Author(s):  
Daniel S. Mosiman ◽  
Yi‐Sheng Chen ◽  
Limei Yang ◽  
Brian Hawkett ◽  
Simon P. Ringer ◽  
...  
Keyword(s):  
Atom Probe Tomography ◽  
Atom Probe ◽  
Hydroxyapatite Nanoparticles ◽  
Front Cover
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