# Effect of Ca Addition on the Oxidation Resistance of Ni–Al Alloy

https://mdr.nims.go.jp/datasets/5cf296c8-b84d-4d6c-bbc4-196ebbbe7a53

## File

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## Id

5cf296c8-b84d-4d6c-bbc4-196ebbbe7a53

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-09-27T00:47:31.790726Z

## Updated at

2024-01-05T13:12:13.767089Z

## Published at

2024-01-10T23:30:16.253322Z

## Doi

https://doi.org/10.48505/nims.4237

## First published url

https://doi.org/10.1007/s11661-022-06936-3

## Date published

2022-12-24

## Recorded date published

2023-5

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Effect of Ca Addition on the Oxidation Resistance of Ni–Al Alloy
  title_type: original
  lang: en

## Description

- description: "Ni-base superalloys are known for their high temperature oxidation
    resistance, however,\r\nimpurity of S at ppm order can significantly decrease
    the oxidation resistance of the alloy.\r\nMelting using a CaO crucible is reported
    to improve the oxidation resistance, but Ca can\r\nnegatively impact the oxidation
    resistance of the alloys, depending on the amount and method\r\nof addition. The
    objectives of this research were to determine the effect of Ca addition using\r\nAl–Ca
    alloy, and to understand how Ca affects the oxidation resistance of the alloy.
    Single\r\ncrystal Ni–9.8 wt pct Al model alloys melted in an Al<sub>2</sub>O<sub>3</sub>
    crucible were cast, with the addition of\r\n20 ppm of S in all samples, and 0,
    20, and 100 ppm of Ca using Al–4.9 wt pct Ca alloy. Ca\r\naddition improves the
    oxidation resistance of the samples, though it lacked in efficiency in the\r\nimprovement
    of this trait compared to when using a CaO crucible. Increasing the amount of
    Ca\r\naddition led to the increase in the amount of CaS formation and desulfurization,
    though the\r\nremoval of slag is crucial. Although Ca was effective in terms of
    desulfurization, to limit the\r\nnegative effects of Ca itself, the formation
    of sulfides must be the dominating reaction."
  description_type: abstract
  lang: eng

## Creator

- name: Chihiro Tabata
  role: author
  orcid: https://orcid.org/0000-0001-6597-4998
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Kyoko Kawagishi
  role: author
  orcid: https://orcid.org/0000-0001-7652-9232
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Tadaharu Yokokawa
  role: author
  orcid: https://orcid.org/0000-0003-1595-6729
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Jun Uzuhashi
  role: author
  orcid: https://orcid.org/0000-0003-2023-8158
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Tadakatsu Ohkubo
  role: author
  orcid: https://orcid.org/0000-0003-3548-1951
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Hiroshi Harada
  role: author
- name: Shinsuke Suzuki
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: oxidation resistance
  schema: not_defined
- subject: sulfur segregation
  schema: not_defined
- subject: Ni-base superalloy
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2022-12-24
end_date: 2023-12-25

## Journal

- title: METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS
    SCIENCE
  issn: '10735623'
  volume: '54'
  issue: '5'
  start_page: 1937
  end_page: 1945

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## Chemical composition



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## Fileset

- id: 91588bac-33d4-4dbc-9aa0-6dd2fe7a722d
  filename: Effect of Ca addition on the oxidation resistance of Ni-Al alloy.pdf
  content_type: application/pdf
  size: 1148349
  md5: 1767645fdcbfe534241dd58469720326

## Thumbnail

fileset_id: 91588bac-33d4-4dbc-9aa0-6dd2fe7a722d
filename: Effect of Ca addition on the oxidation resistance of Ni-Al alloy.pdf