High-throughput microanalysis of steel segregation using picosecond laser-induced breakdown spectroscopy

Shoujie Li; Zixiong Qin; Yuan Lu; Lihui Ren; Jingjun Lin; Zhenzhen Wang; Yoshihiro Deguchi; Ronger Zheng

doi:10.1016/j.talanta.2025.128229

High-throughput microanalysis of steel segregation using picosecond laser-induced breakdown spectroscopy

Shoujie Li
, Zixiong Qin
, Yuan Lu
, Lihui Ren
, Jingjun Lin
, Zhenzhen Wang
, Yoshihiro Deguchi
, Ronger Zheng

School of Rehabilitation Sciences and Engineering

Tokushima University
Ocean University of China
Changchun University of Technology
Xi'an Jiaotong University

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

3 Scopus citations

Abstract

Segregation monitoring plays an essential role in the quality control of steels, and laser-induced breakdown spectroscopy (LIBS) can be employed as a diagnostic tool in this process for elemental microanalysis. In this study, we constructed an ultrafast LIBS system employing a 1.2 kHz repetition-rate picosecond laser (ps-laser) to achieve high-throughput analysis of steel segregation with a spatial resolution of 1 μm. A large-scale elemental imaging was successfully accomplished with 100 million pixels covering an area of 1 cm², while only consuming a total time of 25.27 h. The mapping results demonstrated excellent agreement with those obtained from Electron Probe Microanalysis (EPMA), thereby confirming the measurement reliability. Due to its comparative performance, LIBS has the potential to be developed as an alternative method for steel segregation analysis.

Original language	English
Article number	128229
Journal	Talanta
Volume	295
DOIs	https://doi.org/10.1016/j.talanta.2025.128229
State	Published - 1 Dec 2025

Keywords

100 million pixels
High-resolution
High-throughput
LIBS imaging

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10.1016/j.talanta.2025.128229

Cite this

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title = "High-throughput microanalysis of steel segregation using picosecond laser-induced breakdown spectroscopy",

abstract = "Segregation monitoring plays an essential role in the quality control of steels, and laser-induced breakdown spectroscopy (LIBS) can be employed as a diagnostic tool in this process for elemental microanalysis. In this study, we constructed an ultrafast LIBS system employing a 1.2 kHz repetition-rate picosecond laser (ps-laser) to achieve high-throughput analysis of steel segregation with a spatial resolution of 1 μm. A large-scale elemental imaging was successfully accomplished with 100 million pixels covering an area of 1 cm2, while only consuming a total time of 25.27 h. The mapping results demonstrated excellent agreement with those obtained from Electron Probe Microanalysis (EPMA), thereby confirming the measurement reliability. Due to its comparative performance, LIBS has the potential to be developed as an alternative method for steel segregation analysis.",

keywords = "100 million pixels, High-resolution, High-throughput, LIBS imaging",

author = "Shoujie Li and Zixiong Qin and Yuan Lu and Lihui Ren and Jingjun Lin and Zhenzhen Wang and Yoshihiro Deguchi and Ronger Zheng",

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T1 - High-throughput microanalysis of steel segregation using picosecond laser-induced breakdown spectroscopy

AU - Li, Shoujie

AU - Qin, Zixiong

AU - Lu, Yuan

AU - Ren, Lihui

AU - Lin, Jingjun

AU - Wang, Zhenzhen

AU - Deguchi, Yoshihiro

AU - Zheng, Ronger

PY - 2025/12/1

Y1 - 2025/12/1

N2 - Segregation monitoring plays an essential role in the quality control of steels, and laser-induced breakdown spectroscopy (LIBS) can be employed as a diagnostic tool in this process for elemental microanalysis. In this study, we constructed an ultrafast LIBS system employing a 1.2 kHz repetition-rate picosecond laser (ps-laser) to achieve high-throughput analysis of steel segregation with a spatial resolution of 1 μm. A large-scale elemental imaging was successfully accomplished with 100 million pixels covering an area of 1 cm2, while only consuming a total time of 25.27 h. The mapping results demonstrated excellent agreement with those obtained from Electron Probe Microanalysis (EPMA), thereby confirming the measurement reliability. Due to its comparative performance, LIBS has the potential to be developed as an alternative method for steel segregation analysis.

AB - Segregation monitoring plays an essential role in the quality control of steels, and laser-induced breakdown spectroscopy (LIBS) can be employed as a diagnostic tool in this process for elemental microanalysis. In this study, we constructed an ultrafast LIBS system employing a 1.2 kHz repetition-rate picosecond laser (ps-laser) to achieve high-throughput analysis of steel segregation with a spatial resolution of 1 μm. A large-scale elemental imaging was successfully accomplished with 100 million pixels covering an area of 1 cm2, while only consuming a total time of 25.27 h. The mapping results demonstrated excellent agreement with those obtained from Electron Probe Microanalysis (EPMA), thereby confirming the measurement reliability. Due to its comparative performance, LIBS has the potential to be developed as an alternative method for steel segregation analysis.

KW - 100 million pixels

KW - High-resolution

KW - High-throughput

KW - LIBS imaging

UR - https://www.scopus.com/pages/publications/105004410952

U2 - 10.1016/j.talanta.2025.128229

DO - 10.1016/j.talanta.2025.128229

M3 - 文章

C2 - 40347639

AN - SCOPUS:105004410952

SN - 0039-9140

VL - 295

JO - Talanta

JF - Talanta

M1 - 128229

ER -

High-throughput microanalysis of steel segregation using picosecond laser-induced breakdown spectroscopy

Abstract

Keywords

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