# Revealing the Localization of NiAl-Type Nano-Scale B2 Precipitates Within the BCC Phase of Ni Alloyed Low-Density FeMnAlC Steel

https://mdr.nims.go.jp/datasets/3af89396-69cc-4039-9420-7c6ce2c3b0f0

## File

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## Id

3af89396-69cc-4039-9420-7c6ce2c3b0f0

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-07-20T04:46:01.555737Z

## Updated at

2024-07-25T03:30:12.355127Z

## Published at

2024-07-25T03:30:12.714696Z

## Doi

https://doi.org/10.48505/nims.4604

## First published url

https://doi.org/10.1007/s11837-022-05349-2

## Date published

2022-06-08

## Recorded date published

2022-8

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Revealing the Localization of NiAl-Type Nano-Scale B2 Precipitates Within
    the BCC Phase of Ni Alloyed Low-Density FeMnAlC Steel
  title_type: original
  lang: en

## Description

- description: Coherent intermetallic precipitate-strengthened, Fe-Mn-based low-density
    steels are of interest owing to their superior mechanical properties. We present
    here the observation of 2-4-nm-sized, Ni-Al-type B2 precipitates localized within
    the disordered BCC phase, which is embedded in the major FCC structured austenitic
    (gamma) matrix. Upon exposure to high temperatures of 1110C for 30 min, the B2
    phase coarsens, reaching a size of 26 nm while still positioned within the BCC
    phase. It further disintegrates into ~6-nm sized precipitates upon annealing at
    1200C for 30 min indicating the limited stability of the B2 phase. Thermodynamic
    phase analysis also supports the above observation of decreasing B2 phase stability
    with increasing temperature beyond 1100C. In addition, APT also revealed the presence
    of kappa-precipitates localized within the majority gamma matrix. The collective
    contribution of kappa, B2 and A2 phases strengthens the majority gamma matrix
    of the hot-rolled steel, resulting in achieving an ultimate tensile strength in
    excess of 1.2 GPa with an extended ductility of ~34% at room temperature.
  description_type: abstract
  lang: en

## Creator

- name: Mainak Saha
  role: author
  orcid: https://orcid.org/0000-0001-8979-457X
  organization: Indian Institute of Technology, Madras
  department: Metallurgical and Materials Engineering
- name: M. B. Ponnuchamy
  role: author
- name: M. Sadhasivam
  role: author
- name: Chinmoy Mahata
  role: author
- name: G. Vijayaragavan
  role: author
- name: Karanam Gururaj
  role: author
- name: K. Suresh
  role: author
- name: N. Chandrasekaran
  role: author
- name: D. Prabhu
  role: author
- name: Krushna Kumbhar
  role: author
- name: K. G. Pradeep
  role: author

## Contact agent



## Publisher

organization: Springer

## Managing organization



## Keyword

- subject: Precipitate localisation
  schema: not_defined
- subject: Atom Probe Tomography
  schema: not_defined
- subject: Steels
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: JOM
  issn: '15431851'
  volume: '74'
  issue: '8'
  start_page: 3181
  end_page: 3190

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## Fileset

- id: 64ad98fc-b605-4284-b5de-c621299e1d85
  filename: Manuscript_Final_after addressal_21.03.2022.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 23713846
  md5: 1a2ec8e4e19101fa5e83a2c0f99d663d

## Thumbnail

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filename: Manuscript_Final_after addressal_21.03.2022.docx