Application of MIM process for Nickel base superalloy

Hikaru Ikeda, Takanori Iwahashi, Toshiko Osada, Hideshi Miura

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Superalloys have been used especially for aerospace and atomic energy applications because of their excellent attributes of high corrosion and oxidation resistance, and high temperature strength. A Inconel 718 is one of representative Ni-base superalloys. However, it is not easy to produce the complicate shaped parts with low cost due to their poor workability. In this study, Metal Injection Molding (MIM) process, one of near net-shape forming of powders, has been applied to fabricate the Inconel 718 alloy compacts using different type of powders; gas and water atomized powders. By optimizing the MIM process, their obtained relative density was near full density (98 ∼ 99%) and the tensile property of as-sintered compacts was the strength of 1000 MPa and the elongation of around 10%, which are similar to those of wrought materials. The tensile properties were improved to the strength of 1250 MPa and the elongation of around 8% by heat treatment.

Original languageEnglish
Pages (from-to)33-37
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume58
Issue number1
DOIs
Publication statusPublished - Jan 1 2011

Fingerprint

Metal molding
Nickel
Superalloys
Injection molding
Powders
Tensile properties
Elongation
Oxidation resistance
Nuclear energy
Corrosion resistance
Gases
Heat treatment
Water
Costs
Temperature

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Application of MIM process for Nickel base superalloy. / Ikeda, Hikaru; Iwahashi, Takanori; Osada, Toshiko; Miura, Hideshi.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 58, No. 1, 01.01.2011, p. 33-37.

Research output: Contribution to journalArticle

Ikeda, Hikaru ; Iwahashi, Takanori ; Osada, Toshiko ; Miura, Hideshi. / Application of MIM process for Nickel base superalloy. In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 2011 ; Vol. 58, No. 1. pp. 33-37.
@article{08d71f70bd4b4d33b7f5deed59065931,
title = "Application of MIM process for Nickel base superalloy",
abstract = "Superalloys have been used especially for aerospace and atomic energy applications because of their excellent attributes of high corrosion and oxidation resistance, and high temperature strength. A Inconel 718 is one of representative Ni-base superalloys. However, it is not easy to produce the complicate shaped parts with low cost due to their poor workability. In this study, Metal Injection Molding (MIM) process, one of near net-shape forming of powders, has been applied to fabricate the Inconel 718 alloy compacts using different type of powders; gas and water atomized powders. By optimizing the MIM process, their obtained relative density was near full density (98 ∼ 99{\%}) and the tensile property of as-sintered compacts was the strength of 1000 MPa and the elongation of around 10{\%}, which are similar to those of wrought materials. The tensile properties were improved to the strength of 1250 MPa and the elongation of around 8{\%} by heat treatment.",
author = "Hikaru Ikeda and Takanori Iwahashi and Toshiko Osada and Hideshi Miura",
year = "2011",
month = "1",
day = "1",
doi = "10.2497/jjspm.58.33",
language = "English",
volume = "58",
pages = "33--37",
journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",
issn = "0532-8799",
publisher = "Japan Society of Powder and Powder Metallurgy",
number = "1",

}

TY - JOUR

T1 - Application of MIM process for Nickel base superalloy

AU - Ikeda, Hikaru

AU - Iwahashi, Takanori

AU - Osada, Toshiko

AU - Miura, Hideshi

PY - 2011/1/1

Y1 - 2011/1/1

N2 - Superalloys have been used especially for aerospace and atomic energy applications because of their excellent attributes of high corrosion and oxidation resistance, and high temperature strength. A Inconel 718 is one of representative Ni-base superalloys. However, it is not easy to produce the complicate shaped parts with low cost due to their poor workability. In this study, Metal Injection Molding (MIM) process, one of near net-shape forming of powders, has been applied to fabricate the Inconel 718 alloy compacts using different type of powders; gas and water atomized powders. By optimizing the MIM process, their obtained relative density was near full density (98 ∼ 99%) and the tensile property of as-sintered compacts was the strength of 1000 MPa and the elongation of around 10%, which are similar to those of wrought materials. The tensile properties were improved to the strength of 1250 MPa and the elongation of around 8% by heat treatment.

AB - Superalloys have been used especially for aerospace and atomic energy applications because of their excellent attributes of high corrosion and oxidation resistance, and high temperature strength. A Inconel 718 is one of representative Ni-base superalloys. However, it is not easy to produce the complicate shaped parts with low cost due to their poor workability. In this study, Metal Injection Molding (MIM) process, one of near net-shape forming of powders, has been applied to fabricate the Inconel 718 alloy compacts using different type of powders; gas and water atomized powders. By optimizing the MIM process, their obtained relative density was near full density (98 ∼ 99%) and the tensile property of as-sintered compacts was the strength of 1000 MPa and the elongation of around 10%, which are similar to those of wrought materials. The tensile properties were improved to the strength of 1250 MPa and the elongation of around 8% by heat treatment.

UR - http://www.scopus.com/inward/record.url?scp=79955718761&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79955718761&partnerID=8YFLogxK

U2 - 10.2497/jjspm.58.33

DO - 10.2497/jjspm.58.33

M3 - Article

VL - 58

SP - 33

EP - 37

JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

SN - 0532-8799

IS - 1

ER -