# Effects of yttrium content on solidification, microstructure, and mechanical properties of laser powder bed fused IN718 superalloy

https://mdr.nims.go.jp/datasets/b3f694b2-48ef-4061-bfa2-1f0ef2fdd33a

## File

- [Revised Manuscript_no color.pdf](https://mdr.nims.go.jp/filesets/b311d8fc-8058-4349-95fd-98ed75fa0ca3/download) ([Detail](https://mdr.nims.go.jp/filesets/b311d8fc-8058-4349-95fd-98ed75fa0ca3.md))

## Id

b3f694b2-48ef-4061-bfa2-1f0ef2fdd33a

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-12T01:19:02.626439Z

## Updated at

2025-02-20T00:48:00.237199Z

## Published at

2026-01-02T08:31:09.236063Z

## Doi

https://doi.org/10.48505/nims.5144

## First published url

https://doi.org/10.1016/j.jallcom.2023.173404

## Date published

2024-01-02

## Recorded date published

2024-3

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Effects of yttrium content on solidification, microstructure, and mechanical
    properties of laser powder bed fused IN718 superalloy
  title_type: original
  lang: en

## Description

- description: "The microstructural evolution and mechanical properties of IN718 superalloy
    with different yttrium (Y) contents were investigated. In this study, three alloys
    containing 0wt%, 0.07wt%, and 0.58wt% of Y were fabricated by laser powder bed
    fusion (L-PBF). The experimental results showed that with a minor addition of
    Y content (0.07wt%), the tensile ductility at 650ºC increased from 10.3% to 20.3%,
    and the creep life increased from 203h to 1545h. The increased tensile ductility
    and creep life are attributable to the formation of fine MC carbides, which induce
    serrated grain boundaries, and to the strong affinity of Y for oxygen, resulting
    in the formation of Y2O3 to strengthen the grain boundaries. However, when the
    Y addition\r\nincreased (0.58wt%), the formation of a large Y-rich phase at the
    grain boundary reduced the tensile ductility and creep life."
  description_type: abstract
  lang: und
- description: "The microstructural evolution and mechanical properties of IN718 superalloy
    with different yttrium (Y) contents were investigated. In this study, three alloys
    containing 0wt%, 0.07wt%, and 0.58wt% of Y were fabricated by laser powder bed
    fusion (L-PBF). The experimental results showed that with a minor addition of
    Y content (0.07wt%), the tensile ductility at 650ºC increased from 10.3% to 20.3%,
    and the creep life increased from 203h to 1545h. The increased tensile ductility
    and creep life are attributable to the formation of fine MC carbides, which induce
    serrated grain boundaries, and to the strong affinity of Y for oxygen, resulting
    in the formation of Y2O3 to strengthen the grain boundaries. However, when the
    Y addition\r\nincreased (0.58wt%), the formation of a large Y-rich phase at the
    grain boundary reduced the tensile ductility and creep life."
  description_type: abstract
  lang: und
- description: "The microstructural evolution and mechanical properties of IN718 superalloy
    with different yttrium (Y) contents were investigated. In this study, three alloys
    containing 0wt%, 0.07wt%, and 0.58wt% of Y were fabricated by laser powder bed
    fusion (L-PBF). The experimental results showed that with a minor addition of
    Y content (0.07wt%), the tensile ductility at 650ºC increased from 10.3% to 20.3%,
    and the creep life increased from 203h to 1545h. The increased tensile ductility
    and creep life are attributable to the formation of fine MC carbides, which induce
    serrated grain boundaries, and to the strong affinity of Y for oxygen, resulting
    in the formation of Y2O3 to strengthen the grain boundaries. However, when the
    Y addition\r\nincreased (0.58wt%), the formation of a large Y-rich phase at the
    grain boundary reduced the tensile ductility and creep life."
  description_type: abstract
  lang: und
- description: "The microstructural evolution and mechanical properties of IN718 superalloy
    with different yttrium (Y) contents were investigated. In this study, three alloys
    containing 0wt%, 0.07wt%, and 0.58wt% of Y were fabricated by laser powder bed
    fusion (L-PBF). The experimental results showed that with a minor addition of
    Y content (0.07wt%), the tensile ductility at 650ºC increased from 10.3% to 20.3%,
    and the creep life increased from 203h to 1545h. The increased tensile ductility
    and creep life are attributable to the formation of fine MC carbides, which induce
    serrated grain boundaries, and to the strong affinity of Y for oxygen, resulting
    in the formation of Y2O3 to strengthen the grain boundaries. However, when the
    Y addition\r\nincreased (0.58wt%), the formation of a large Y-rich phase at the
    grain boundary reduced the tensile ductility and creep life."
  description_type: abstract
  lang: und
- description: "The microstructural evolution and mechanical properties of IN718 superalloy
    with different yttrium (Y) contents were investigated. In this study, three alloys
    containing 0wt%, 0.07wt%, and 0.58wt% of Y were fabricated by laser powder bed
    fusion (L-PBF). The experimental results showed that with a minor addition of
    Y content (0.07wt%), the tensile ductility at 650ºC increased from 10.3% to 20.3%,
    and the creep life increased from 203h to 1545h. The increased tensile ductility
    and creep life are attributable to the formation of fine MC carbides, which induce
    serrated grain boundaries, and to the strong affinity of Y for oxygen, resulting
    in the formation of Y2O3 to strengthen the grain boundaries. However, when the
    Y addition\r\nincreased (0.58wt%), the formation of a large Y-rich phase at the
    grain boundary reduced the tensile ductility and creep life."
  description_type: abstract
  lang: und
- description: "The microstructural evolution and mechanical properties of IN718 superalloy
    with different yttrium (Y) contents were investigated. In this study, three alloys
    containing 0wt%, 0.07wt%, and 0.58wt% of Y were fabricated by laser powder bed
    fusion (L-PBF). The experimental results showed that with a minor addition of
    Y content (0.07wt%), the tensile ductility at 650ºC increased from 10.3% to 20.3%,
    and the creep life increased from 203h to 1545h. The increased tensile ductility
    and creep life are attributable to the formation of fine MC carbides, which induce
    serrated grain boundaries, and to the strong affinity of Y for oxygen, resulting
    in the formation of Y2O3 to strengthen the grain boundaries. However, when the
    Y addition\r\nincreased (0.58wt%), the formation of a large Y-rich phase at the
    grain boundary reduced the tensile ductility and creep life."
  description_type: abstract
  lang: und
- description: "The microstructural evolution and mechanical properties of IN718 superalloy
    with different yttrium (Y) contents were investigated. In this study, three alloys
    containing 0wt%, 0.07wt%, and 0.58wt% of Y were fabricated by laser powder bed
    fusion (L-PBF). The experimental results showed that with a minor addition of
    Y content (0.07wt%), the tensile ductility at 650ºC increased from 10.3% to 20.3%,
    and the creep life increased from 203h to 1545h. The increased tensile ductility
    and creep life are attributable to the formation of fine MC carbides, which induce
    serrated grain boundaries, and to the strong affinity of Y for oxygen, resulting
    in the formation of Y2O3 to strengthen the grain boundaries. However, when the
    Y addition\r\nincreased (0.58wt%), the formation of a large Y-rich phase at the
    grain boundary reduced the tensile ductility and creep life."
  description_type: abstract
  lang: und
- description: "The microstructural evolution and mechanical properties of IN718 superalloy
    with different yttrium (Y) contents were investigated. In this study, three alloys
    containing 0wt%, 0.07wt%, and 0.58wt% of Y were fabricated by laser powder bed
    fusion (L-PBF). The experimental results showed that with a minor addition of
    Y content (0.07wt%), the tensile ductility at 650ºC increased from 10.3% to 20.3%,
    and the creep life increased from 203h to 1545h. The increased tensile ductility
    and creep life are attributable to the formation of fine MC carbides, which induce
    serrated grain boundaries, and to the strong affinity of Y for oxygen, resulting
    in the formation of Y2O3 to strengthen the grain boundaries. However, when the
    Y addition\r\nincreased (0.58wt%), the formation of a large Y-rich phase at the
    grain boundary reduced the tensile ductility and creep life."
  description_type: abstract
  lang: und

## Creator

- name: Thaviti Naidu Palleda
  role: author
- name: Hasina Tabassum Chowdhury
  role: author
- name: Santhosh Banoth
  role: author
- name: Hideyuki Murakami
  role: author
- name: Koji Kakehi
  role: author

## Contact agent



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## Keyword

- subject: Ni-based superalloy, Yttrium, Laser powder bed fusion, MC carbides, Tensile
    and creep propertie
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-01-02
end_date: 2026-01-02

## Journal

- title: Journal of Alloys and Compounds
  issn: '09258388'
  volume: '978'
  article_number: '173404'

## Conference



## Related item



## Funding

- funder_name: National Cheng Kung University
- identifier: 22H01366
  funder_name: Japan Society for the Promotion of Science
- funder_name: National Institute for Materials Science
- identifier: AF-2018222-B3
  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



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## Fileset

- id: b311d8fc-8058-4349-95fd-98ed75fa0ca3
  filename: Revised Manuscript_no color.pdf
  content_type: application/pdf
  size: 4432382
  md5: 9985768fea77d2b802e4d94c362a344d

## Thumbnail

fileset_id: b311d8fc-8058-4349-95fd-98ed75fa0ca3
filename: Revised Manuscript_no color.pdf