Etching technique for revelation of plastic deformation zone in low carbon steel

Mitsuhiro Okayasu, Z. Wang, D. L. Chen

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

In this study, an etching technique to detect the localised plastic deformation behaviour in a low carbon steel was developed. With this technique, etching with Fry solution under ultrasonic vibration was carried out on samples plastically deformed and then heated at 550°C for a certain period of time. The plastic zone was revealed by different degrees of etching in the plastically deformed and non-deformed regions; the plastic zone was found to be only slightly etched, whereas the other region was deeply etched. From the surface offset after etching, the deformation zone was found to be observable even at low magnification, such as 10 times. As the heating duration increased, the plastic zone became clearer. The mechanism for such an etching reaction is discussed on the basis of electrochemical analysis.

Original languageEnglish
Pages (from-to)530-538
Number of pages9
JournalMaterials Science and Technology
Volume21
Issue number5
DOIs
Publication statusPublished - May 2005
Externally publishedYes

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Keywords

  • Cementite
  • Crack tip plastic zone
  • Electrode potential
  • Etching technique
  • Ferrite
  • Fly etching
  • Low carbon steel
  • Pearlite
  • Plastic deformation

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

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