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

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).

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Analysis Techniques For Nanoscale Solute Clustering In Atom Probe Tomography

Microscopy and Microanalysis ◽

10.1017/s1431927607075770 ◽

2007 ◽

Vol 13 (S02) ◽

Author(s):

A Ceguerra ◽

M Moody ◽

L Stephenson ◽

SP Ringer

Keyword(s):

Atom Probe Tomography ◽

Atom Probe ◽

Analysis Techniques

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Three Dimensional Laser-assisted Atom-probe Tomography: Advanced Analysis of Si Nanostructures

ECS Meeting Abstracts ◽

10.1149/ma2006-01/7/346 ◽

2006 ◽

Keyword(s):

Atom Probe Tomography ◽

Three Dimensional ◽

Atom Probe ◽

Advanced Analysis ◽

Si Nanostructures

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Corrigendum to: “Quantitative measurement of carbon content in Fe–C binary alloys by atom probe tomography” [Scripta Materialia 67 (2012) 999–1002]

Scripta Materialia ◽

10.1016/j.scriptamat.2013.01.001 ◽

2013 ◽

Vol 68 (8) ◽

pp. 658 ◽

Cited By ~ 1

Author(s):

Goro Miyamoto ◽

Kunio Shinbo ◽

Tadashi Furuhara

Keyword(s):

Carbon Content ◽

Atom Probe Tomography ◽

Quantitative Measurement ◽

Binary Alloys ◽

Atom Probe

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

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.172-174.111 ◽

2011 ◽

Vol 172-174 ◽

pp. 111-116 ◽

Cited By ~ 4

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.

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Quantitative Analysis of Precipitate Compositions in an Al-Li-Mg-Cu Alloy Using Atom Probe Tomography

Materials Science Forum ◽

10.4028/www.scientific.net/msf.654-656.914 ◽

2010 ◽

Vol 654-656 ◽

pp. 914-917 ◽

Cited By ~ 1

Author(s):

Xiang Yuan Xiong ◽

Stavroula Moutsos ◽

Russell King ◽

Barry C. Muddle

Keyword(s):

Quantitative Analysis ◽

Aluminium Alloy ◽

Atom Probe Tomography ◽

Lithium Concentration ◽

Stoichiometric Composition ◽

Atom Probe ◽

Field Evaporation ◽

Experimental Conditions ◽

3 Dimensional ◽

Cu Alloy

The composition of  precipitates in aluminium alloy 8090 has been analysed using a 3 dimensional atom probe with fast data acquisition rates. The effects of experimental conditions for the quantitative atom probe analysis have been examined in detail. The results show that i) lithium is prone to preferential DC field evaporation at temperatures > 25K and with a pulse fraction < 20%; ii) the lithium concentration of  precipitates can vary from precipitate to precipitate, ranging from 19.1 to 25.3 at.%, and iii) the stoichiometric composition of the  phase can be obtained provided that the probing temperature is  25K and pulse fraction is  20%.

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