# Gigacycle fatigue properties of additively manufactured Hastelloy X

https://mdr.nims.go.jp/datasets/fc54fa49-98ec-4a3e-8918-314b431748dd

## File

- [Gigacycle fatigue properties of additively manufactured Hastelloy X.pdf](https://mdr.nims.go.jp/filesets/f5ef3f58-c937-411f-9634-4baa59c4bb9e/download) ([Detail](https://mdr.nims.go.jp/filesets/f5ef3f58-c937-411f-9634-4baa59c4bb9e.md))
- [Fatigue test data for Hastelloy X at RT.xlsx](https://mdr.nims.go.jp/filesets/6ee4dcd7-cdc2-4b58-aae3-e68e7a15929e/download) ([Detail](https://mdr.nims.go.jp/filesets/6ee4dcd7-cdc2-4b58-aae3-e68e7a15929e.md))

## Id

fc54fa49-98ec-4a3e-8918-314b431748dd

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-01-30T00:49:48.964503Z

## Updated at

2026-01-30T23:30:04.658758Z

## Published at

2026-01-30T08:46:25.156805Z

## Doi



## First published url

https://doi.org/10.1080/27660400.2025.2607165

## Date published

2026-12-31

## Recorded date published

2026-12-31

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Gigacycle fatigue properties of additively manufactured Hastelloy X
  title_type: original
  lang: en

## Description

- description: Gigacycle fatigue tests were conducted on additively manufactured (AM)
    Hastelloy X. Individual AM samples manufactured in the Z and X directions were
    tested at room temperature, and the results were compared with those for conventional
    samples. The samples were subjected to ultrasonic fatigue testing up to 10^9 cycles
    and to fatigue testing up to 10^7 cycles. The microstructures of the AM samples
    consisted of (101) texture that showed high internal plastic strain. The 0.2 %
    proof stress levels of the AM samples were much higher than those of the conventional
    samples. Internal fractures were seen in both the AM and the conventional samples
    at above 10^7 cycles, indicating conventional fatigue limits at 10^7 cycles to
    be absent in Hastelloy X. The gigacycle fatigue strengths were comparable between
    the AM and conventional samples and between the Z and X directions. The conventional
    fatigue test results for the AM samples revealed longer fatigue lives than those
    for the conventional samples because of the high 0.2 % proof stress. These results
    show the ultrasonic fatigue test results of the AM samples to be continuously
    connected to the conventional fatigue test results, unlike the gap seen with conventional
    samples. Conventional fatigue limits at 10^7 cycles appear to be absent in Hastelloy
    X, with new fatigue limits possible in the gigacycle region. The internal fracture
    origins in the AM samples were solidification cracks or the matrix itself, so
    we conclude that fatigue failure is not caused by porosities or lack of fusion.
  description_type: abstract
  lang: und

## Creator

- name: Yoshiyuki Furuya
  role: author
  orcid: https://orcid.org/0000-0002-3039-5280
- name: Hideaki Nishikawa
  role: author
  orcid: https://orcid.org/0000-0002-2484-6903
- name: Kota Sawada
  role: author
  orcid: https://orcid.org/0000-0001-7780-1648
- name: Tomotaka Hatakeyama
  role: author
  orcid: https://orcid.org/0000-0002-2904-8177
- name: Masahiro Kusano
  role: author
  orcid: https://orcid.org/0000-0002-5061-0195
- name: Makoto Watanabe
  role: author
  orcid: https://orcid.org/0000-0002-5064-9583

## Contact agent



## Publisher

organization: Informa UK Limited

## Managing organization



## Keyword

- subject: gigacycle fatigue
  schema: not_defined
- subject: additive manufacturing
  schema: not_defined
- subject: Hastelloy X
  schema: not_defined
- subject: internal fracture
  schema: not_defined
- subject: room temperature
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: 'Science and Technology of Advanced Materials: Methods'
  issn: '27660400'
  volume: '6'
  issue: '1'
  article_number: '2607165'

## Conference



## Related item



## Funding

- identifier: AF-2022201-A3
  funder_name: Amada Foundation

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: f5ef3f58-c937-411f-9634-4baa59c4bb9e
  filename: Gigacycle fatigue properties of additively manufactured Hastelloy X.pdf
  content_type: application/pdf
  size: 7366941
  md5: 860a0b8067e13abfe5f24f6257ac313f
- id: 6ee4dcd7-cdc2-4b58-aae3-e68e7a15929e
  filename: Fatigue test data for Hastelloy X at RT.xlsx
  content_type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
  size: 31060
  md5: a99a18648f610f542c25d01f647e54e6

## Thumbnail

fileset_id: f5ef3f58-c937-411f-9634-4baa59c4bb9e
filename: Gigacycle fatigue properties of additively manufactured Hastelloy X.pdf