# Improvement of Oxidation Resistance for Ni-Base Single Crystal Superalloy TMS-238 by Suppression of Sb Segregation at Oxide/Substrate Interface Using CaO

https://mdr.nims.go.jp/datasets/00de9e25-b06e-49d9-a6be-cfa1a16a9d06

## File

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## Id

00de9e25-b06e-49d9-a6be-cfa1a16a9d06

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-07-17T09:18:59.212051Z

## Updated at

2024-11-07T07:30:28.489503Z

## Published at

2024-11-07T07:30:28.819434Z

## Doi

https://doi.org/10.48505/nims.4596

## First published url

https://doi.org/10.1007/s11663-023-02948-5

## Date published

2023-11-07

## Recorded date published

2024-2

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Improvement of Oxidation Resistance for Ni-Base Single Crystal Superalloy
    TMS-238 by Suppression of Sb Segregation at Oxide/Substrate Interface Using CaO
  title_type: original
  lang: en

## Description

- description: Impurity Sb degrades the oxidation resistance of Ni-base superalloys
    after Al2O3 crucible melting. The purpose of this study is to clarify the effect
    of CaO on the oxidation resistance of Ni-base SC superalloys TMS-238 containing
    Sb and the mechanism. Single crystal alloys containing Sb were cast using an Al2O3
    crucible and a CaO crucible. In the cyclic oxidation tests, the mass did not decrease
    for the alloy after CaO crucible melting. In STEM observations for the alloy after
    CaO crucible melting, Sb-Ca-O inclusion was found. In 3DAP for the oxide/substrate
    interface of the alloy after CaO crucible melting, Sb segregation was not detected.
    Moreover, the CaO rod was inserted in the TMS-238 melt to observe the CaO/melt
    interface. In EPMA observations of the surface of the CaO rod, Sb was observed.
    Therefore, the higher oxidation resistance of the alloy after CaO crucible melting
    than that of Al2O3 crucible melting is due to the suppression of Sb segregation
    at the oxide/substrate interface by removing Sb from the melt and fixing Sb in
    the alloy. These occurs by the formation of Sb-Ca-O on the surface of CaO, and
    the formation of Sb-Ca-O inclusions in the alloy, respectively.
  description_type: abstract
  lang: und

## Creator

- name: Hirotoshi Maezawa
  role: author
- name: Chihiro Tabata
  role: author
  orcid: https://orcid.org/0000-0001-6597-4998
  organization: National Institute for Materials Science
- name: Yuji Takata
  role: author
  orcid: https://orcid.org/0009-0006-9362-0250
  organization: National Institute for Materials Science
- name: Jun Uzuhashi
  role: author
  orcid: https://orcid.org/0000-0003-2023-8158
  organization: National Institute for Materials Science
- name: Tadakatsu Ohkubo
  role: author
  orcid: https://orcid.org/0000-0003-3548-1951
  organization: National Institute for Materials Science
- name: Tadaharu Yokokawa
  role: author
  orcid: https://orcid.org/0000-0003-1595-6729
  organization: National Institute for Materials Science
- name: Hiroshi Harada
  role: author
  organization: National Institute for Materials Science
- name: Kyoko Kawagishi
  role: author
  orcid: https://orcid.org/0000-0001-7652-9232
  organization: National Institute for Materials Science
- name: Shinsuke Suzuki
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Ni-base superalloy
  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/s11663-023-02948-5'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2023-11-07
end_date: 2024-11-07

## Journal

- title: Metallurgical and Materials Transactions B
  issn: '15431916'
  volume: '55'
  start_page: 183
  end_page: 194

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## Fileset

- id: fd919ff0-401d-4105-8a4f-36d7a745419b
  filename: Improvement of Oxidation Resistance for Ni-Base Single Crystal Superalloy
    TMS-238 by Suppression of Sb Segregation at Oxide-Substrate Interface Using CaO.pdf
  content_type: application/pdf
  size: 1642082
  md5: 02a7ef3a015298be2e0956553f2b3476

## Thumbnail

fileset_id: fd919ff0-401d-4105-8a4f-36d7a745419b
filename: Improvement of Oxidation Resistance for Ni-Base Single Crystal Superalloy
  TMS-238 by Suppression of Sb Segregation at Oxide-Substrate Interface Using CaO.pdf