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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationASTM Special Technical Publication
PublisherAmerican Society for Testing and Materials
Pages52-61
Number of pages10
Edition1413
Publication statusPublished - 2001
Externally publishedYes
EventMechanical Properties of Structural Films - Orlando, FL, United States
Duration: 2000 Nov 152000 Nov 16

Other

OtherMechanical Properties of Structural Films
CountryUnited States
CityOrlando, FL
Period00/11/1500/11/16

Fingerprint

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

Keywords

  • Amorphous alloy
  • Bending test
  • Fatigue crack growth
  • Ni-P
  • R ratio
  • Thin film

ASJC Scopus subject areas

  • Engineering(all)

Cite this

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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