Examining the multi-scale complexity and the crystallographic hierarchy of isothermally treated bainitic and martensitic structures

D. De-Castro; R. Rementeria; J. Vivas; T. Sourmail; J. D. Poplawsky; E. Urones-Garrote; J. A. Jimenez; C. Capdevila; F. G. Caballero

doi:10.1016/j.matchar.2020.110127

Examining the multi-scale complexity and the crystallographic hierarchy of isothermally treated bainitic and martensitic structures

D. De-Castro, R. Rementeria, J. Vivas, T. Sourmail, J. D. Poplawsky, E. Urones-Garrote, J. A. Jimenez, C. Capdevila, F. G. Caballero

electron Microscopy and Microanalysis

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

In this work, differences and similarities between bainitic and martensitic structures obtained by isothermal heat treatments such as austempering, quench and partitioning (Q&P) and quench and tempering (Q&T), are investigated by multiple techniques including X-ray diffraction, electron backscatter diffraction, scanning and transmission electron microscopy and atom probe tomography. Results reveal that analogous lath-like ferritic structures with similar austenite content can be achieved by adjusting the isothermal holding temperature. However, certain variability in hardness is recorded, which is consistent with differences on the precipitation state revealed by the nano-scale examination of the structure, and with dissimilar crystallographic size distribution of ferritic grains.

Original language	English
Article number	110127
Journal	Materials Characterization
Volume	160
DOIs	https://doi.org/10.1016/j.matchar.2020.110127
State	Published - Feb 2020

Funding

This research was funded by the European Research Fund for Coal and Steel under the contracts RFSR-CT-2014-00016 . APT was conducted at ORNL's Center for Nanophase Materials Sciences (CNMS), which is a U.S. DOE Office of Science User Facility. David de Castro acknowledges the Spanish Ministry of Economy and Competitiveness for his PhD research grant Ref. BES-2017-080945 . The authors acknowledge Dr. Cyril Cayron for kindly providing ARPGE software for EBSD data analyses. This research was funded by the European Research Fund for Coal and Steel under the contracts RFSR-CT-2014-00016. APT was conducted at ORNL's Center for Nanophase Materials Sciences (CNMS), which is a U.S. DOE Office of Science User Facility. David de Castro acknowledges the Spanish Ministry of Economy and Competitiveness for his PhD research grant Ref. BES-2017-080945. The authors acknowledge Dr. Cyril Cayron for kindly providing ARPGE software for EBSD data analyses.

Keywords

Atom probe tomography
Bainite
Carbide precipitation
Martensite
Steels

Access to Document

10.1016/j.matchar.2020.110127

Cite this

De-Castro, D., Rementeria, R., Vivas, J., Sourmail, T., Poplawsky, J. D., Urones-Garrote, E., Jimenez, J. A., Capdevila, C., & Caballero, F. G. (2020). Examining the multi-scale complexity and the crystallographic hierarchy of isothermally treated bainitic and martensitic structures. Materials Characterization, 160, Article 110127. https://doi.org/10.1016/j.matchar.2020.110127

@article{b428e88f8481419f8ff5441924217b34,

title = "Examining the multi-scale complexity and the crystallographic hierarchy of isothermally treated bainitic and martensitic structures",

abstract = "In this work, differences and similarities between bainitic and martensitic structures obtained by isothermal heat treatments such as austempering, quench and partitioning (Q&P) and quench and tempering (Q&T), are investigated by multiple techniques including X-ray diffraction, electron backscatter diffraction, scanning and transmission electron microscopy and atom probe tomography. Results reveal that analogous lath-like ferritic structures with similar austenite content can be achieved by adjusting the isothermal holding temperature. However, certain variability in hardness is recorded, which is consistent with differences on the precipitation state revealed by the nano-scale examination of the structure, and with dissimilar crystallographic size distribution of ferritic grains.",

keywords = "Atom probe tomography, Bainite, Carbide precipitation, Martensite, Steels",

author = "D. De-Castro and R. Rementeria and J. Vivas and T. Sourmail and Poplawsky, {J. D.} and E. Urones-Garrote and Jimenez, {J. A.} and C. Capdevila and Caballero, {F. G.}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Inc.",

year = "2020",

month = feb,

doi = "10.1016/j.matchar.2020.110127",

language = "English",

volume = "160",

journal = "Materials Characterization",

issn = "1044-5803",

publisher = "Elsevier",

}

TY - JOUR

T1 - Examining the multi-scale complexity and the crystallographic hierarchy of isothermally treated bainitic and martensitic structures

AU - De-Castro, D.

AU - Rementeria, R.

AU - Vivas, J.

AU - Sourmail, T.

AU - Poplawsky, J. D.

AU - Urones-Garrote, E.

AU - Jimenez, J. A.

AU - Capdevila, C.

AU - Caballero, F. G.

PY - 2020/2

Y1 - 2020/2

N2 - In this work, differences and similarities between bainitic and martensitic structures obtained by isothermal heat treatments such as austempering, quench and partitioning (Q&P) and quench and tempering (Q&T), are investigated by multiple techniques including X-ray diffraction, electron backscatter diffraction, scanning and transmission electron microscopy and atom probe tomography. Results reveal that analogous lath-like ferritic structures with similar austenite content can be achieved by adjusting the isothermal holding temperature. However, certain variability in hardness is recorded, which is consistent with differences on the precipitation state revealed by the nano-scale examination of the structure, and with dissimilar crystallographic size distribution of ferritic grains.

AB - In this work, differences and similarities between bainitic and martensitic structures obtained by isothermal heat treatments such as austempering, quench and partitioning (Q&P) and quench and tempering (Q&T), are investigated by multiple techniques including X-ray diffraction, electron backscatter diffraction, scanning and transmission electron microscopy and atom probe tomography. Results reveal that analogous lath-like ferritic structures with similar austenite content can be achieved by adjusting the isothermal holding temperature. However, certain variability in hardness is recorded, which is consistent with differences on the precipitation state revealed by the nano-scale examination of the structure, and with dissimilar crystallographic size distribution of ferritic grains.

KW - Atom probe tomography

KW - Bainite

KW - Carbide precipitation

KW - Martensite

KW - Steels

UR - http://www.scopus.com/inward/record.url?scp=85077736730&partnerID=8YFLogxK

U2 - 10.1016/j.matchar.2020.110127

DO - 10.1016/j.matchar.2020.110127

M3 - Article

AN - SCOPUS:85077736730

SN - 1044-5803

VL - 160

JO - Materials Characterization

JF - Materials Characterization

M1 - 110127

ER -

Examining the multi-scale complexity and the crystallographic hierarchy of isothermally treated bainitic and martensitic structures

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this