# Effects of substrate preheating and processing parameters on the crystallographic texture of Hastelloy X on SX-like Ni fabricated by L-PBF process with flat-top laser beam

https://mdr.nims.go.jp/datasets/5f3b6bbd-358a-4cc8-a21f-e6cd943247cd

## Files

- [2026-P.DARAM-Effects of substrate preheating and processing parameters on the crystallographic texture of Hastelloy X on SX-like Ni fabricated by L-PBF process with flat-top laser beam.pdf](https://mdr.nims.go.jp/filesets/2035d34a-1456-46c5-83e2-ca0706356276/download) ([Detail](https://mdr.nims.go.jp/filesets/2035d34a-1456-46c5-83e2-ca0706356276.md))

## Id

5f3b6bbd-358a-4cc8-a21f-e6cd943247cd

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-01-27T02:49:36.535279Z

## Updated at

2026-02-16T08:22:12.364037Z

## Published at

2026-01-27T09:02:10.906332Z

## Doi



## First published url

https://doi.org/10.1016/j.jmrt.2026.01.142

## Date published

2026-01-20

## Recorded date published

2026-3

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Effects of substrate preheating and processing parameters on the crystallographic
    texture of Hastelloy X on SX-like Ni fabricated by L-PBF process with flat-top
    laser beam
  title_type: original
  lang: en

## Description

- description: This work investigates the effects of substrate preheating and processing
    parameters on the crystallographic texture of Hastelloy X (HX) deposited on a
    single crystal (SX)-like Ni substrate using laser powder bed fusion (L-PBF) process.
    Single- and multi-track experiments together with HX deposited on SX-like Ni substrate,
    were examined under varying laser powers and scanning speeds, with substrate preheating
    applied using a flat-top beam. A heat transfer model was employed to simulate
    the thermal history of melt pool. The results showed that higher laser power and
    lower scanning speed, combined with substrate preheating, produced larger melt
    pools and promoted elongated columnar grains formation throughout the Z-direction.
    Increasing the linear energy density (LED) from 1.5 J/mm to 5 J/mm at substrate
    preheating of 200 °C reduced the temperature gradient (G) by approximately -16%,
    as well as the solidification rate (R) and cooling rate (G×R) by -87% and -89%,
    respectively. These reductions in solidification kinetics promoted coarser primary
    dendrite arm spacing (PDAS), increasing from ~1.2 µm to ~2 µm. Moreover, substrate
    preheating improved metallurgical bonding and promoted epitaxial columnar growth,
    resulting in a strong <001> texture extending from the SX-like Ni into the HX
    layers. Consequently, the multiple of uniform distribution (MUD) increased from
    2.5 to 4 under higher energy density (E) with substrate preheating. The findings
    demonstrate that high E and substrate preheating effectively reduces G, R, and
    G×R, thereby enhancing texture control and improving process optimization for
    fabricating SX-like HX structures via the L-PBF process.
  description_type: abstract
  lang: und

## Creator

- name: Phuangphaga Daram
  role: author
  orcid: https://orcid.org/0000-0001-8937-6319
- name: Fabien Briffod
  role: author
  orcid: https://orcid.org/0000-0002-3635-4885
- name: Tomonori Kitashima
  role: author
  orcid: https://orcid.org/0000-0003-0828-7483
- 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: Hastelloy X
  schema: not_defined
- subject: Laser powder bed fusion process
  schema: not_defined
- subject: Substrate preheating
  schema: not_defined
- subject: Microstructure
  schema: not_defined
- subject: Texture
  schema: not_defined
- subject: Stray grains
  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: Journal of Materials Research and Technology
  issn: '22140697'
  volume: '41'
  start_page: 1974
  end_page: 1985

## Conference



## Related item



## Funding

- identifier: JPJ004596
  funder_name: The Acquisition, Technology, and Logistics Agency (ATLA), Japan
- identifier: AF- 2022201-A3
  funder_name: The 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: 2035d34a-1456-46c5-83e2-ca0706356276
  filename: 2026-P.DARAM-Effects of substrate preheating and processing parameters
    on the crystallographic texture of Hastelloy X on SX-like Ni fabricated by L-PBF
    process with flat-top laser beam.pdf
  content_type: application/pdf
  size: 15438705
  md5: 6f4d675aa109647fe21ca9f2101388df

## Thumbnail

fileset_id: 2035d34a-1456-46c5-83e2-ca0706356276
filename: 2026-P.DARAM-Effects of substrate preheating and processing parameters on
  the crystallographic texture of Hastelloy X on SX-like Ni fabricated by L-PBF process
  with flat-top laser beam.pdf