Effect of Aging Condition on Fatigue Properties of Ni-Base Super Alloy Inconel 718 at Room Temperature

• KAWAGOISHI Norio

  Department of Mechanical Engineering, Kagoshima University,

• YOSHIMI Shogo

  鹿児島大学大学院理工学研究科

• GOTO Masahiro

  大分大学工学部

• NAKAMURA Yuzo

  Department of Mechanical Engineering, Kagoshima University,

• OHZONO Yoshihisa

  鹿児島大学FSRC機器分析室

Bibliographic Information

Other Title

• Ｎｉ基超合金インコネル７１８の室温における疲労特性に及ぼす時効条件の影響
• Niキ チョウゴウキン インコネル 718 ノ シツオン ニ オケル ヒロウ トクセイ ニ オヨボス ジコウ ジョウケン ノ エイキョウ

Abstract

Rotating bending fatigue tests were carried out using partially notched specimens of Ni-base super alloy Inconel 718 at room temperature in order to investigate the effect of aging condition on fatigue properties. Aging conditions selected were the under-aged and the over-aged conditions with the same hardness and the peak-aged condition. The conventional double-aged condition was also selected for comparison. Fatigue strength of the double-aged condition was the highest among the alloys, especially at fatigue limit. The growth rate of a crack smaller than the length of a few grains was suppressed in the double-aged alloy, though the growth rates of a longer crack were nearly the same in all of the alloys.

Journal

• TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A

  TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 74 (743), 994-999, 2008

  The Japan Society of Mechanical Engineers

Keywords

• Fatigue
• Inconel 718
• Aging Condition
• Rotating Bending
• Crack Initiation
• Crack Propagation

Details

• CRID: 1390001204478718720
• NII Article ID: 110006836791
• NII Book ID: AN0018742X
• DOI: 10.1299/kikaia.74.994
• COI: 1:CAS:528:DC%2BD1cXhtFOjtr3L
• ISSN: 18848338
• ISSN: 03875008
• HANDLE: 10559/13887
• NDL BIB ID: 9592713
• Web Site: https://our.repo.nii.ac.jp/records/2008248
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9592713
• Web Site: http://www.jstage.jst.go.jp/article/kikaia1979/74/743/74_743_994/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed