# Precipitation behavior and anisotropic creep deformation behavior of laser powder bed fusion processed Hastelloy X at 1173 K

https://mdr.nims.go.jp/datasets/73efe7ca-edd3-405b-9fdc-6bed01baf475

## File

- [1-s2.0-S0921509326005836-main.pdf](https://mdr.nims.go.jp/filesets/72dc5fbc-ab6d-4e17-8735-6cfb3d7f69d4/download) ([Detail](https://mdr.nims.go.jp/filesets/72dc5fbc-ab6d-4e17-8735-6cfb3d7f69d4.md))

## Id

73efe7ca-edd3-405b-9fdc-6bed01baf475

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-04-30T01:54:39.214450Z

## Updated at

2026-04-30T03:01:11.491392Z

## Published at

2026-04-30T07:23:07.930582Z

## Doi



## First published url

https://doi.org/10.1016/j.msea.2026.150303

## Date published

2026-04-22

## Recorded date published

2026-7

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Precipitation behavior and anisotropic creep deformation behavior of laser
    powder bed fusion processed Hastelloy X at 1173 K
  title_type: original
  lang: en

## Description

- description: Hastelloy X was fabricated using Laser Powder Bed Fusion (LPBF). Creep
    tests of the as-built samples were conducted at 1173 K under conditions in which
    the build direction was parallel or perpendicular to the stress axis. The creep
    rupture time for samples with the stress axis parallel to the build direction
    was comparable to that of conventionally manufactured Hastelloy X. However, for
    samples with the stress axis perpendicular to the build direction, the creep rupture
    time was shorter by one order of magnitude. To elucidate the cause of this anisotropy,
    the microstructure of the creep-ruptured samples was analyzed using scanning electron
    microscopy-electron backscatter diffraction (SEM-EBSD). Precipitates were classified
    using EBSD pattern matching, successfully and more efficiently revealing the precipitation
    sites of four types of precipitates compared to traditional methods such as SEM-energy
    dispersive spectroscopy (SEM-EDS) and transmission electron microscopy-selected
    area diffraction pattern (TEM-SADP) analysis. The specific precipitates did not
    influence the formation of creep voids and cracks. Crack propagation occurred
    at high-angle grain boundaries, which were preferentially aligned parallel to
    the build direction and exhibited a significant deviation in the Taylor factor
    between adjacent grains. The anisotropy in the creep strength was attributed to
    the distribution of high-angle grain boundaries formed during the LPBF process,
    as these boundaries facilitated crack propagation when the stress axis was perpendicular
    to the build direction.
  description_type: abstract
  lang: und

## Creator

- name: Tomotaka Hatakeyama
  role: author
  orcid: https://orcid.org/0000-0002-2904-8177
- name: Kota Sawada
  role: author
  orcid: https://orcid.org/0000-0001-7780-1648
- 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: Elsevier BV

## Managing organization



## Keyword

- subject: Laser powder bed fusion
  schema: not_defined
- subject: Hastelloy X
  schema: not_defined
- subject: Creep
  schema: not_defined
- subject: Precipitation
  schema: not_defined
- subject: Grain boundary
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: 'Materials Science and Engineering: A'
  issn: '09215093'
  volume: '965'
  article_number: '150303'

## Conference



## Related item



## Funding

- identifier: AF-2022201-A3
  funder_name: The Amada Foundation
- identifier: JP25K01536
  funder_name: Japan Society for the Promotion of Science

## 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: 72dc5fbc-ab6d-4e17-8735-6cfb3d7f69d4
  filename: 1-s2.0-S0921509326005836-main.pdf
  content_type: application/pdf
  size: 15632599
  md5: 93498e7557731551a4664c3821ec8d04

## Thumbnail

fileset_id: 72dc5fbc-ab6d-4e17-8735-6cfb3d7f69d4
filename: 1-s2.0-S0921509326005836-main.pdf