Three-dimensional atom probe analysis of boron segregation at austenite grain boundary in a low carbon steel - Effects of boundary misorientation and quenching temperature

Goro Miyamoto; Ai Goto; Naoki Takayama; Tadashi Furuhara

doi:10.1016/j.scriptamat.2018.05.046

Three-dimensional atom probe analysis of boron segregation at austenite grain boundary in a low carbon steel - Effects of boundary misorientation and quenching temperature

Goro Miyamoto, Ai Goto, Naoki Takayama, Tadashi Furuhara

Materials Design Division

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

22 Citations (Scopus)

Abstract

Segregation of boron at random austenite grain boundaries with known misorientation angle in a boron-added low carbon steel quenched from austenite state at different temperatures was investigated quantitatively using three-dimensional atom probe. Boron segregation is reduced at low angle boundaries or low quenching temperatures. The latter result indicates that non-equilibrium boron segregation plays an important role and is enhanced at higher quenching temperature due to more excess vacancies and longer diffusion distance during quenching from higher temperature.

Original language	English
Pages (from-to)	168-171
Number of pages	4
Journal	Scripta Materialia
Volume	154
DOIs	https://doi.org/10.1016/j.scriptamat.2018.05.046
Publication status	Published - 2018 Sep

Keywords

Boron
Grain boundary
Segregation
Three-dimensional atom probe

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Access to Document

10.1016/j.scriptamat.2018.05.046

Cite this

@article{803717216ccd407fb9c5b068fafdf266,

title = "Three-dimensional atom probe analysis of boron segregation at austenite grain boundary in a low carbon steel - Effects of boundary misorientation and quenching temperature",

abstract = "Segregation of boron at random austenite grain boundaries with known misorientation angle in a boron-added low carbon steel quenched from austenite state at different temperatures was investigated quantitatively using three-dimensional atom probe. Boron segregation is reduced at low angle boundaries or low quenching temperatures. The latter result indicates that non-equilibrium boron segregation plays an important role and is enhanced at higher quenching temperature due to more excess vacancies and longer diffusion distance during quenching from higher temperature.",

keywords = "Boron, Grain boundary, Segregation, Three-dimensional atom probe",

author = "Goro Miyamoto and Ai Goto and Naoki Takayama and Tadashi Furuhara",

year = "2018",

month = sep,

doi = "10.1016/j.scriptamat.2018.05.046",

language = "English",

volume = "154",

pages = "168--171",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Three-dimensional atom probe analysis of boron segregation at austenite grain boundary in a low carbon steel - Effects of boundary misorientation and quenching temperature

AU - Miyamoto, Goro

AU - Goto, Ai

AU - Takayama, Naoki

AU - Furuhara, Tadashi

PY - 2018/9

Y1 - 2018/9

N2 - Segregation of boron at random austenite grain boundaries with known misorientation angle in a boron-added low carbon steel quenched from austenite state at different temperatures was investigated quantitatively using three-dimensional atom probe. Boron segregation is reduced at low angle boundaries or low quenching temperatures. The latter result indicates that non-equilibrium boron segregation plays an important role and is enhanced at higher quenching temperature due to more excess vacancies and longer diffusion distance during quenching from higher temperature.

AB - Segregation of boron at random austenite grain boundaries with known misorientation angle in a boron-added low carbon steel quenched from austenite state at different temperatures was investigated quantitatively using three-dimensional atom probe. Boron segregation is reduced at low angle boundaries or low quenching temperatures. The latter result indicates that non-equilibrium boron segregation plays an important role and is enhanced at higher quenching temperature due to more excess vacancies and longer diffusion distance during quenching from higher temperature.

KW - Boron

KW - Grain boundary

KW - Segregation

KW - Three-dimensional atom probe

UR - http://www.scopus.com/inward/record.url?scp=85048466066&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048466066&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2018.05.046

DO - 10.1016/j.scriptamat.2018.05.046

M3 - Article

AN - SCOPUS:85048466066

VL - 154

SP - 168

EP - 171

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

ER -

Three-dimensional atom probe analysis of boron segregation at austenite grain boundary in a low carbon steel - Effects of boundary misorientation and quenching temperature

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this