# Effect of cooling rate after high-temperature heating on the ductility of 19Cr-0.020C-0.015N-0.4Nb stabilized ferritic stainless cast steel

https://mdr.nims.go.jp/datasets/2aaa1037-bece-4671-8d2f-dd49df1a8e27

## File

- [2025_MSEA_(Nishio_Cast).pdf](https://mdr.nims.go.jp/filesets/0b5a3f67-d3d6-40de-9b68-696374f45e6b/download) ([Detail](https://mdr.nims.go.jp/filesets/0b5a3f67-d3d6-40de-9b68-696374f45e6b.md))

## Id

2aaa1037-bece-4671-8d2f-dd49df1a8e27

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-19T04:14:42.045445Z

## Updated at

2025-12-19T05:03:10.813279Z

## Published at

2025-12-19T07:51:12.164452Z

## Doi



## First published url

https://doi.org/10.1016/j.msea.2025.148952

## Date published

2025-08-29

## Recorded date published

2025-11

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Effect of cooling rate after high-temperature heating on the ductility of
    19Cr-0.020C-0.015N-0.4Nb stabilized ferritic stainless cast steel
  title_type: original
  lang: en

## Description

- description: In as-cast material, cracking can occur during assembly or welding
    processes depending on the manufacturing conditions. This study proposed heat
    treatment strategies to improve the ductility of as-cast stabilized ferritic stainless
    cast steel containing Nb, particularly focusing on cooling rate after solution
    treatment. The specimen cooled at 1.0 ◦C/min (“Slow-cooled sample”) exhibited
    ductile fracture, while the specimen cooled at 2.0 × 104 ◦C/min (“Rapid-cooled
    sample”) exhibited low ductility and cleavage fracture. The fracture initiation
    site of the Rapid-cooled sample was a coarse oxide particle near the grain boundary.
    In the ferrite matrix surrounding the oxide particles in the Rapid-cooled sample,
    more dislocations were observed compared to the Slow-cooled sample. These dislocations
    are likely introduced by local thermal stress generated during rapid cooling,
    resulting in the suppression of plastic accommodation around the oxide particles
    during plastic deformation. Consequently, stress concentration at the crack tips
    of the oxide particles and their Nb(C, N) coating increases, causing the cracks
    to propagate into the ferrite matrix. Accordingly, we concluded that the dislocations
    introduced around the oxide particles are one of the major factors reducing the
    ductility of the Rapid-cooled sample.
  description_type: abstract
  lang: und

## Creator

- name: Rie Nishio
  role: author
  orcid: https://orcid.org/0009-0001-3579-298X
- name: Takuo Umetani
  role: author
- name: Yasuhiko Nakamura
  role: author
- name: Taisuke T. Sasaki
  role: author
  orcid: https://orcid.org/0000-0002-5952-7638
- name: Akinobu Shibata
  role: author
  orcid: https://orcid.org/0000-0001-8577-6411

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Ferritic stainless cast steel
  schema: not_defined
- subject: Nb stabilized steel
  schema: not_defined
- subject: Heat treatment
  schema: not_defined
- subject: Cooling rate
  schema: not_defined
- subject: Ductility
  schema: not_defined
- subject: Cleavage fracture
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: 'Materials Science and Engineering: A'
  issn: '09215093'
  volume: '945'
  article_number: '148952'

## Conference



## Related item



## Funding

- funder_name: National Institute for Materials Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



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## Fileset

- id: 0b5a3f67-d3d6-40de-9b68-696374f45e6b
  filename: 2025_MSEA_(Nishio_Cast).pdf
  content_type: application/pdf
  size: 15705998
  md5: 5fe93a597e37c5549fa2001b93615939

## Thumbnail

fileset_id: 0b5a3f67-d3d6-40de-9b68-696374f45e6b
filename: 2025_MSEA_(Nishio_Cast).pdf