Atomic scale investigation of solutes and precipitates in high strength steels

Peter D Hodgson; Subrata Mukherjee; Hossein Beladi; Xiang-Yuan Xiong; Ilana Timokhina

doi:10.4028/www.scientific.net/MSF.762.14

Atomic scale investigation of solutes and precipitates in high strength steels

Peter D Hodgson, Subrata Mukherjee, Hossein Beladi, Xiang-Yuan Xiong, Ilana Timokhina

Monash Centre for Electron Microscopy

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

7 Citations (Scopus)

Abstract

Two steels, ferritic, high strength with interphase precipitation and nano-bainitic, were used to show the advances in and application of atom probe. The coexistence of the nano-scale, interphase Nb-Mo-C clusters and stoichiometric MC nano particles was found in the high strength steel after thermomechanical processing. Moreover, the segregation of carbon at different heterogeneous sites such as grain boundary that reduces the solute element available for fine precipitation was observed. The APT study of the solutes redistribution between the retained austenite and bainitic ferrite in the nano-bainitic steel revealed: (i) the presence of two types of the retained austenite with higher and lower carbon content and (ii) segregation of carbon at the local defects such as dislocations in the bainitic ferrite during the isothermal hold.

Original language	English
Title of host publication	Physical and Numerical Simulation of Materials Processing VII
Editors	L Pentti Karjalainen, David A Porter, Seppo A Jarvenpaa
Place of Publication	Zurich Switzerland
Publisher	Trans Tech Publications
Pages	14 - 21
Number of pages	8
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.762.14
Publication status	Published - 2013
Event	International Conference on Physical and Numerical Simulation of Materials Processing (ICPNS) 2013 - Oulu Finland, Zurich Switzerland Duration: 1 Jan 2013 → …

Publication series

Name	Materials Science Forum
Publisher	Trans Tech Publications
Volume	762
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Conference

Conference	International Conference on Physical and Numerical Simulation of Materials Processing (ICPNS) 2013
City	Zurich Switzerland
Period	1/01/13 → …

Access to Document

10.4028/www.scientific.net/MSF.762.14

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Cite this

Hodgson, P. D., Mukherjee, S., Beladi, H., Xiong, X.-Y., & Timokhina, I. (2013). Atomic scale investigation of solutes and precipitates in high strength steels. In L. P. Karjalainen, D. A. Porter, & S. A. Jarvenpaa (Eds.), Physical and Numerical Simulation of Materials Processing VII (pp. 14 - 21). (Materials Science Forum; Vol. 762). Trans Tech Publications. https://doi.org/10.4028/www.scientific.net/MSF.762.14

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title = "Atomic scale investigation of solutes and precipitates in high strength steels",

abstract = "Two steels, ferritic, high strength with interphase precipitation and nano-bainitic, were used to show the advances in and application of atom probe. The coexistence of the nano-scale, interphase Nb-Mo-C clusters and stoichiometric MC nano particles was found in the high strength steel after thermomechanical processing. Moreover, the segregation of carbon at different heterogeneous sites such as grain boundary that reduces the solute element available for fine precipitation was observed. The APT study of the solutes redistribution between the retained austenite and bainitic ferrite in the nano-bainitic steel revealed: (i) the presence of two types of the retained austenite with higher and lower carbon content and (ii) segregation of carbon at the local defects such as dislocations in the bainitic ferrite during the isothermal hold.",

author = "Hodgson, {Peter D} and Subrata Mukherjee and Hossein Beladi and Xiang-Yuan Xiong and Ilana Timokhina",

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Hodgson, PD, Mukherjee, S, Beladi, H, Xiong, X-Y & Timokhina, I 2013, Atomic scale investigation of solutes and precipitates in high strength steels. in LP Karjalainen, DA Porter & SA Jarvenpaa (eds), Physical and Numerical Simulation of Materials Processing VII. Materials Science Forum, vol. 762, Trans Tech Publications, Zurich Switzerland, pp. 14 - 21, International Conference on Physical and Numerical Simulation of Materials Processing (ICPNS) 2013, Zurich Switzerland, 1/01/13. https://doi.org/10.4028/www.scientific.net/MSF.762.14

Atomic scale investigation of solutes and precipitates in high strength steels. / Hodgson, Peter D; Mukherjee, Subrata; Beladi, Hossein et al.
Physical and Numerical Simulation of Materials Processing VII. ed. / L Pentti Karjalainen; David A Porter; Seppo A Jarvenpaa. Zurich Switzerland: Trans Tech Publications, 2013. p. 14 - 21 (Materials Science Forum; Vol. 762).

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

TY - GEN

T1 - Atomic scale investigation of solutes and precipitates in high strength steels

AU - Hodgson, Peter D

AU - Mukherjee, Subrata

AU - Beladi, Hossein

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AU - Timokhina, Ilana

PY - 2013

Y1 - 2013

N2 - Two steels, ferritic, high strength with interphase precipitation and nano-bainitic, were used to show the advances in and application of atom probe. The coexistence of the nano-scale, interphase Nb-Mo-C clusters and stoichiometric MC nano particles was found in the high strength steel after thermomechanical processing. Moreover, the segregation of carbon at different heterogeneous sites such as grain boundary that reduces the solute element available for fine precipitation was observed. The APT study of the solutes redistribution between the retained austenite and bainitic ferrite in the nano-bainitic steel revealed: (i) the presence of two types of the retained austenite with higher and lower carbon content and (ii) segregation of carbon at the local defects such as dislocations in the bainitic ferrite during the isothermal hold.

AB - Two steels, ferritic, high strength with interphase precipitation and nano-bainitic, were used to show the advances in and application of atom probe. The coexistence of the nano-scale, interphase Nb-Mo-C clusters and stoichiometric MC nano particles was found in the high strength steel after thermomechanical processing. Moreover, the segregation of carbon at different heterogeneous sites such as grain boundary that reduces the solute element available for fine precipitation was observed. The APT study of the solutes redistribution between the retained austenite and bainitic ferrite in the nano-bainitic steel revealed: (i) the presence of two types of the retained austenite with higher and lower carbon content and (ii) segregation of carbon at the local defects such as dislocations in the bainitic ferrite during the isothermal hold.

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Hodgson PD, Mukherjee S, Beladi H, Xiong XY, Timokhina I. Atomic scale investigation of solutes and precipitates in high strength steels. In Karjalainen LP, Porter DA, Jarvenpaa SA, editors, Physical and Numerical Simulation of Materials Processing VII. Zurich Switzerland: Trans Tech Publications. 2013. p. 14 - 21. (Materials Science Forum). doi: 10.4028/www.scientific.net/MSF.762.14

Atomic scale investigation of solutes and precipitates in high strength steels

Abstract

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