Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
권호 표지
DOI QR코드

DOI QR Code

Nano-Scale Surface Observation of Cyclically Deformed Copper and Cu-Al Single Crystals

반복변형된 Cu 및 Cu-Al 단결정 표면형상의 나노-스케일 관찰

  • 최성종 (영남대학교 공업기술연구소) ;
  • 이권용 (대구대학교 자동차 · 산업 · 기계공학부)
  • Published : 2000.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

Scanning Probe Microscope (SPM) such as Scanning Tunneling Microscope (STM) and Atomic Force Microscope (AEM) was shown to be the powerful tool for nano-scale characterization of material surfaces. Using this technique, surface morphology of the cyclically deformed Cu or Cu-Al single crystal was observed. The surface became proportionately rough as the number of cycles increased, but after some number of cycles no further change was observed. Slip steps with the heights of 100 to 200 nm and the widths of 1000 to 2000 nm were prevailing at the stage. The slipped distance of one slip system at the surface was not uniform, and formation of the extrusions or intrusions was assumed to occur such place. By comparing the morphological change caused by crystallographic orientation, strain amplitude, number of cycles or stacking fault energy, some interesting results which help to clarify the basic mechanism of fatigue damage were obtained. Furthermore, applicability of the scanning tunneling microscopy to fatigue damage is discussed.

Keywords

References

  1. ASTM STP 924 v.I Basic questions in fatigue Jin, N. J.;Fong, J. T.(Eds.);Fields, R. J.(Eds.)
  2. Acta Metall v.37 Copper single crystal PSB morphology between 4.2K and 350K Basinski, Z. S.;Basinski, S. J.
  3. Acta Metall v.37 Fatigue damage in copper single crystals at room and cryogenic temperatures Kwon, I. B.;Fine, M. E.;Weertman, J.
  4. Deformation and fracture mechanics of engineering materials Hertzberg, R. W.
  5. Appl. phys. Lett. v.40 Tunneling through a controllable vacuum gap Binning, G.;Rohrer, H.;Gerber, Ch.;Weibel, E.
  6. Phys. Rev. Lett. v.56 Atomic force microscopy Binnig, G.;Quate, C. F.;Gerber, Ch.
  7. Oxford series on optical science-scanning force microscopy Sarid, D.
  8. Scanning probe microscopy and spectroscopy method and applications Wiesendanger, R.
  9. Acta Metall v.40 The application of surface science to fatigue: The role of surface chemistry and surface modification in fatigue crack initiation in silver single cryatals Sriram, T. S.;Fine, M. E.;Chung, Y. W.
  10. Trans. JSME. v.A-57 Insitu observation on metal surface in aqueous solution with an electrochemical STM Masuda, H.;Nagashima, N.;Matsuoka, S.
  11. Trans. JSME. v.A-62 Insitu observation of stress corrosion cracking of high-strength aluminum alloy by scanning atomic force microscopy and influence of vacuum Komai, K.;Minoshima, K.;Miyawaki, T.
  12. 金屬物性基礎講座 17, 結晶成長 日本金屬學會編
  13. McGraw-Hill Series Foundations of materials science and engineering Smith, W. F.
  14. 일본 靜岡大學大學院碩士學位論文 走査型トンネル顯微鏡の試作およぴ疲勞すぺり帶への應用 宮津 信
  15. PRECISION ENGINEERING v.12 Fabrication of tips with controlled geometry for scanning tunneling microscopy Musselman, I. H.;Peterson, P. A.;Russel, P. E.
  16. Phil. Mag. v.3 Formation of fatigue cracks Wood, W. A.
  17. Scripta Metall. v.18 Forma- tion and growth of subcritical fatigue cracks Basinski, Z. S.;Basinski, S. J.