# Fatigue strength evaluation of 1180MPa class recycled steel

https://mdr.nims.go.jp/datasets/081dfb3d-4a5e-4460-b012-de5808d89499

## File

- [Fatigue2022_Abstract_Nobuo Nagashima.pdf](https://mdr.nims.go.jp/filesets/cf1bb2ab-dbd2-434f-8783-15e541d5a77b/download) ([Detail](https://mdr.nims.go.jp/filesets/cf1bb2ab-dbd2-434f-8783-15e541d5a77b.md))

## Id

081dfb3d-4a5e-4460-b012-de5808d89499

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-12-25T09:29:14.164443Z

## Updated at

2024-01-04T04:40:01.502042Z

## Published at

2023-12-28T23:30:22.925348Z

## Doi

https://doi.org/10.48505/nims.4320

## First published url



## Date published



## Recorded date published



## Resource type

conference_presentation

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Fatigue strength evaluation of 1180MPa class recycled steel
  title_type: original
  lang: en

## Description

- description: In this study, we evaluated the material properties of 1180MPa class
    recycled steel sheets created from waste scrap and conducted two types of fatigue
    tests to evaluate the required performance of parts as steel sheets for automobiles.
    The obtained results are shown below. In the fatigue test with R = -1, when a
    mirror-finished test piece was used, the fatigue limit of 107 times was 600 MPa
    for both bending and axial force. The 107-time fatigue limit was 500 MPa for the
    pickled and untouched test pieces. It was shown that this difference in fatigue
    limit is due to the effect of surface roughness. As a result of investigating
    the influence of the stress ratio by the bending fatigue test, the 107th fatigue
    limit was 610MPa for R = -1 and 476MPa for R = 0. As a result of plotting the
    fatigue limit diagram, it was shown that the fatigue limit of R = 0 is located
    almost on the modified goodman line, and that this test material can evaluate
    the effect of average stress by the fatigue limit diagram.
  description_type: abstract
  lang: eng

## Creator

- name: 長島 伸夫
  role: author
  orcid: https://orcid.org/0000-0003-3588-980X
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials/Materials Evaluation Field/Cryogenic
    Fatigue Group
  ror: https://ror.org/026v1ze26
- name: 早川 正夫
  role: author
  orcid: https://orcid.org/0000-0001-5143-8350
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials/Materials Evaluation Field/Cryogenic
    Fatigue Group
  ror: https://ror.org/026v1ze26
- name: 長井 寿
  role: author
  organization: National Institute for Materials Science
  department: Human Resources Division
  ror: https://ror.org/026v1ze26
- name: 升田 博之
  role: author
  organization: National Institute for Materials Science
  department: Human Resources Division
  ror: https://ror.org/026v1ze26
- name: 中西栄三郎
  role: author
  organization: Tokyo steel
- name: 中西宣文
  role: author
  organization: Tokyo steel
- name: 岩崎勝
  role: author
  organization: Tokyo steel

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## Keyword

- subject: High-strength recycled steel; 10^7 cycles fatigue limit; Stress ratio;
    Fatigue limit diagram
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal



## Conference

name: '13th International Fatigue Congress (FATIGUE2022+1) '
start_date: 2023-11-06
end_date: 2023-11-10
identifier: https://fatigue2022.org/

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## Fileset

- id: cf1bb2ab-dbd2-434f-8783-15e541d5a77b
  filename: Fatigue2022_Abstract_Nobuo Nagashima.pdf
  content_type: application/pdf
  size: 362367
  md5: 23bc31f33ff5b8a7476958077952275b

## Thumbnail

fileset_id: cf1bb2ab-dbd2-434f-8783-15e541d5a77b
filename: Fatigue2022_Abstract_Nobuo Nagashima.pdf