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Atom Probe Tomography and Nano Secondary Ion Mass Spectroscopy Investigation of the Segregation of Boron at Austenite Grain Boundaries in 0.5 wt.% Carbon Steels SCIE SCOPUS KCI

Title
Atom Probe Tomography and Nano Secondary Ion Mass Spectroscopy Investigation of the Segregation of Boron at Austenite Grain Boundaries in 0.5 wt.% Carbon Steels
Authors
Seol, JBLim, NSLee, BHRenaud, LPark, CG
Date Issued
2011-06
Publisher
대한금속재료학회
Abstract
The grain boundary segregation of boron atoms in high strength low alloy steels containing 50 ppm boron was accomplished using atom probe tomography (APT) and nano-beam secondary ion mass spectroscopy (SIMS). The formation of boro-carbides under an excessive addition of boron to the steels was identified through the SIMS and TEM. The APT was performed in order to evaluate the composition of the alloying elements, such as, boron and carbon, segregated at prior austenite grain boundaries. The boron contents at the prior austenite grain boundaries were approximately 1.7 +/- 0.2 at.%, which was approximately 70 times more than the amount of boron added to the steels.
Keywords
metals; annealing; grain boundary segregation; atom-probe field-ion microscopy (AP-FIM); secondary ion mass spectroscopy (SIMS)
URI
https://oasis.postech.ac.kr/handle/2014.oak/16598
DOI
10.1007/S12540-011-0617-Y
ISSN
1598-9623
Article Type
Article
Citation
METALS AND MATERIALS INTERNATIONAL, vol. 17, no. 3, page. 413 - 416, 2011-06
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박찬경PARK, CHAN GYUNG
Dept of Materials Science & Enginrg
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