# Effect of Cyclic Stress Change on Creep Behavior in ASME P91 Steel

https://mdr.nims.go.jp/datasets/d3332583-eea2-438f-b428-a3a287d5315b

## File

- [別刷.pdf](https://mdr.nims.go.jp/filesets/ed317eee-ddfe-489e-892a-578e940b9110/download) ([Detail](https://mdr.nims.go.jp/filesets/ed317eee-ddfe-489e-892a-578e940b9110.md))

## Id

d3332583-eea2-438f-b428-a3a287d5315b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-03T01:42:57.952108Z

## Updated at

2025-02-03T03:30:27.520761Z

## Published at

2025-02-03T03:30:28.688237Z

## Doi



## First published url

https://doi.org/10.2355/tetsutohagane.tetsu-2024-114

## Date published

2025-02-01

## Recorded date published

2025

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Effect of Cyclic Stress Change on Creep Behavior in ASME P91 Steel
  title_type: original
  lang: en
- title: ASME P91鋼のクリープ挙動に及ぼす応力変動の影響
  title_type: alternative
  lang: ja

## Description

- description: "Effect of cyclic stress changes on creep rupture strength was investigated
    at 600oC for MGQ and MGS heat of ASME P91 steel. There was no large difference
    of creep rupture strength among the heats. However, the creep rupture ductility
    of MGS was lower than that of MGQ in the long-term. The initial creep stress and
    stress after stress reduction was 120MPa and 24MPa to 84MPa, respectively. The
    time interval of stress reduction was 6 days for each test. For MGQ heat, no effect
    of stress reduction to 84MPa on creep rupture strength was observed. The stress
    reduction to 60MPa slightly increased time to rupture as compared to creep test
    under constant stress. A small amount of decrease in time to rupture was confirmed
    in case of stress reduction to 36MPa.\r\nConsequently, there was no tendency of
    effect of stress reduction on creep rupture strength for both heats. The cyclic
    stress change did not affect the martensitic lath structure and precipitates distribution
    after creep rupture.\r\n"
  description_type: abstract
  lang: und

## Creator

- name: Kota Sawada
  role: author
  orcid: https://orcid.org/0000-0001-7780-1648
- name: Yasushi Taniuchi
  role: author
  orcid: https://orcid.org/0000-0002-9988-3370
- name: Takehiro Nojima
  role: author
  orcid: https://orcid.org/0000-0002-1307-2770
- name: Kaoru Sekido
  role: author
  orcid: https://orcid.org/0000-0003-2691-6589
- name: Tomotaka Hatakeyama
  role: author
  orcid: https://orcid.org/0000-0002-2904-8177
- name: Kazuhiro Kimura
  role: author
  orcid: https://orcid.org/0000-0001-7906-2703

## Contact agent



## Publisher

organization: Iron and Steel Institute of Japan

## Managing organization



## Keyword

- subject: P91 steel
  schema: not_defined
- subject: creep
  schema: not_defined
- subject: cyclic stress change
  schema: not_defined
- subject: creep ductility
  schema: not_defined
- subject: microstructure
  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: Tetsu-to-Hagane
  issn: '00211575'
  volume: '111'
  issue: '2'
  article_number: TETSU-2024-114

## Conference



## Related item



## Funding

- identifier: '0351194-A'
  funder_name: 公益財団法人池谷科学技術振興財団
  description: 改良9Cr-1Mo鋼の⻑期応⼒変動クリープ下の材質劣化機構解明

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## Specimen



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## Fileset

- id: ed317eee-ddfe-489e-892a-578e940b9110
  filename: 別刷.pdf
  content_type: application/pdf
  size: 3857725
  md5: 51a6b40cbc97557a22cb857648e464d8

## Thumbnail

fileset_id: ed317eee-ddfe-489e-892a-578e940b9110
filename: 別刷.pdf