Fatigue crack growth of a Ni-P amorphous alloy thin film

Kazuki Takashima, Masayuki Shimojo, Yakichi Higo, Michael V. Swain

研究成果: Conference contribution

4 引用 (Scopus)

抄録

Fatigue crack growth behavior has been investigated for micro-sized Ni-P amorphous alloy specimens. Cantilever beam type specimens (10 μm by 12 μm by 50 μm) with notches were prepared from Ni-P amorphous thin film by focused ion beam machining. Fatigue crack growth tests were carried out in air at room temperature using a newly developed mechanical testing machine that can apply cyclic loading to micro-sized specimens. Striations were observed clearly on the fatigue surface, and fatigue crack growth resistance curves as a function of stress intensity range (ΔK) were obtained from careful measurements of the striation spacings. The fatigue crack growth rates at stress ratios of 0.3 and 0.5 were greater than that at 0.1 under a given value of ΔK. This suggests crack closure may occur even in such micro-sized specimens and may affect the fatigue crack growth behavior.

元の言語English
ホスト出版物のタイトルASTM Special Technical Publication
出版者American Society for Testing and Materials
ページ52-61
ページ数10
エディション1413
出版物ステータスPublished - 2001
外部発表Yes
イベントMechanical Properties of Structural Films - Orlando, FL, United States
継続期間: 2000 11 152000 11 16

Other

OtherMechanical Properties of Structural Films
United States
Orlando, FL
期間00/11/1500/11/16

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Amorphous alloys
Fatigue crack propagation
Thin films
Crack closure
Mechanical testing
Focused ion beams
Cantilever beams
Amorphous films
Machining
Fatigue of materials
Air
Temperature

ASJC Scopus subject areas

  • Engineering(all)

これを引用

Takashima, K., Shimojo, M., Higo, Y., & Swain, M. V. (2001). Fatigue crack growth of a Ni-P amorphous alloy thin film. : ASTM Special Technical Publication (1413 版, pp. 52-61). American Society for Testing and Materials.

Fatigue crack growth of a Ni-P amorphous alloy thin film. / Takashima, Kazuki; Shimojo, Masayuki; Higo, Yakichi; Swain, Michael V.

ASTM Special Technical Publication. 1413. 編 American Society for Testing and Materials, 2001. p. 52-61.

研究成果: Conference contribution

Takashima, K, Shimojo, M, Higo, Y & Swain, MV 2001, Fatigue crack growth of a Ni-P amorphous alloy thin film. : ASTM Special Technical Publication. 1413 Edn, American Society for Testing and Materials, pp. 52-61, Mechanical Properties of Structural Films, Orlando, FL, United States, 00/11/15.
Takashima K, Shimojo M, Higo Y, Swain MV. Fatigue crack growth of a Ni-P amorphous alloy thin film. : ASTM Special Technical Publication. 1413 版 American Society for Testing and Materials. 2001. p. 52-61
Takashima, Kazuki ; Shimojo, Masayuki ; Higo, Yakichi ; Swain, Michael V. / Fatigue crack growth of a Ni-P amorphous alloy thin film. ASTM Special Technical Publication. 1413. 版 American Society for Testing and Materials, 2001. pp. 52-61
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