Influence of shot peening on fatigue strength of maraging steels with different hardness

Takanori Nagano, Norio Kawagoishi, Michihiko Moriyama, Qiang Chen, Etsuichi Nagashima

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

In order to investigate the hardness dependence on the fatigue strengths for surface fracture and internal fracture, rotating bending fatigue tests were carried out for maraging steels using specimens with different hardness obtained by heat-treating at different under-aging conditions. Fatigue limit for surface fracture was evaluated in electro-polished specimens and the one for internal fracture was in shot-peened ones, where fatigue limits were defined as fatigue strengths at 107 cycles for surface fracture and 108 cycles for internal fracture, respectively. Fatigue limit for internal fracture increased with increase in hardness similar to the one for surface fracture. However, the proportional relationship between the fatigue limit and the hardness existed till higher hardness in the fatigue limit for internal fracture than in the one for surface fracture. This difference in the hardness dependence on fatigue limit was discussed from the viewpoint of the influence of humidity on the fatigue strength.

元の言語英語
ページ(範囲)1126-1132
ページ数7
ジャーナルZairyo/Journal of the Society of Materials Science, Japan
56
発行部数12
DOI
出版物ステータス出版済み - 12 1 2007

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maraging steels
shot peening
Maraging steel
Shot peening
hardness
Hardness
Fatigue of materials
Fatigue strength
bending fatigue
cycles
Bending (deformation)
fatigue tests
shot
humidity
Atmospheric humidity
Aging of materials

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Influence of shot peening on fatigue strength of maraging steels with different hardness. / Nagano, Takanori; Kawagoishi, Norio; Moriyama, Michihiko; Chen, Qiang; Nagashima, Etsuichi.

:: Zairyo/Journal of the Society of Materials Science, Japan, 巻 56, 番号 12, 01.12.2007, p. 1126-1132.

研究成果: ジャーナルへの寄稿記事

Nagano, Takanori ; Kawagoishi, Norio ; Moriyama, Michihiko ; Chen, Qiang ; Nagashima, Etsuichi. / Influence of shot peening on fatigue strength of maraging steels with different hardness. :: Zairyo/Journal of the Society of Materials Science, Japan. 2007 ; 巻 56, 番号 12. pp. 1126-1132.
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