# Segregation-induced microstructural refinement in a FeMnAlC-TiB metal matrix composite by laser powder bed fusion

https://mdr.nims.go.jp/datasets/99a7d158-921e-4081-92a0-ae6b3a9564aa

## File

- [Manuscript.docx](https://mdr.nims.go.jp/filesets/647e5a5d-2ea8-4bd9-8cc4-dbfbb618c32f/download) ([Detail](https://mdr.nims.go.jp/filesets/647e5a5d-2ea8-4bd9-8cc4-dbfbb618c32f.md))

## Id

99a7d158-921e-4081-92a0-ae6b3a9564aa

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-27T07:37:04.746431Z

## Updated at

2026-04-30T03:01:11.491392Z

## Published at

2026-05-06T01:23:40.731082Z

## Doi

https://doi.org/10.48505/nims.6100

## First published url

https://doi.org/10.1007/s40964-025-01104-6

## Date published

2025-05-06

## Recorded date published

2025-10

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Segregation-induced microstructural refinement in a FeMnAlC-TiB metal matrix
    composite by laser powder bed fusion
  title_type: original
  lang: en

## Description

- description: Microstructural control is crucial in laser powder bed fusion (LPBF)
    technique. The columnar-to-equiaxed transition is an effective approach to reducing
    anisotropy and improving mechanical properties of additively manufactured materials.
    Recent studies have shown that grain refinement can be induced through heterogeneous
    nucleation ahead of the epitaxially growing solid-liquid (S/L) interface. This
    paper investigated the solidification process of a metal matrix composite (FeMnAlC-TiB)
    produced by LPBF, which resulted in a texture-free nanoequiaxed δ-Fe matrix, reinforced
    by nanoprecipitates and a M2B-type network structure. The combined analysis of
    EBSD, TEM-ASTAR, and 3DAP indicated that boron (B) segregation plays a major role
    in terms of microstructure refinement by generating a thermal undercooling zone
    ahead of the S/L interface. As a result of the microstructural refinement and
    the presence of reinforced particles, the material achieved remarkable levels
    of strength as compared with the as-cast counterparts.
  description_type: abstract
  lang: und

## Creator

- name: André L. Vidilli
  role: author
- name: Leonardo F. Gomes
  role: author
- name: Adriel P. Oliveira
  role: author
- name: Mainak Saha
  role: author
  orcid: https://orcid.org/0000-0001-8979-457X
  organization: National Institute for Materials Science
- name: Taisuke Sasaki
  role: author
  orcid: https://orcid.org/0000-0002-5952-7638
  organization: National Institute for Materials Science
- name: Lucas B. Otani
  role: author
- name: Ilya Okulov
  role: author
- name: Claudemiro Bolfarini
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Laser powder bed fusion
  schema: not_defined
- subject: Metal matrix composite
  schema: not_defined
- subject: Solidification
  schema: not_defined
- subject: Segregation
  schema: not_defined

## Rights

- description: 'This version of the article has been accepted for publication, after
    peer review (when applicable) and is subject to Springer Nature’s AM terms of
    use, but is not the Version of Record and does not reflect post-acceptance improvements,
    or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s40964-025-01104-6.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2025-05-06
end_date: 2026-05-07

## Journal

- title: Progress in Additive Manufacturing
  issn: '23639512'
  volume: '10'
  issue: '10'
  start_page: 8171
  end_page: 8178

## Conference



## Related item



## Funding

- identifier: 2020/05049-1
  funder_name: Fundacão de Amparo à Pesquisa do Estado de São Paulo
- identifier: 141250/2020-8
  funder_name: Conselho Nacional de Desenvolvimento Científico e Tecnológico

## Instrument



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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: 647e5a5d-2ea8-4bd9-8cc4-dbfbb618c32f
  filename: Manuscript.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 5258086
  md5: 507d6deec09c9085cb2c786518284e11

## Thumbnail

fileset_id: 647e5a5d-2ea8-4bd9-8cc4-dbfbb618c32f
filename: Manuscript.docx