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中文核心期刊
EFFECT OF HYDROGEN ON THE DEFORMATION PROCESS AHEAD OF CRACK TIP IN BCC SINGLE CRYSTAL[J]. Chinese Journal of Theoretical and Applied Mechanics, 1991, 23(4): 458-463. DOI: 10.6052/0459-1879-1991-4-1995-863
Citation: EFFECT OF HYDROGEN ON THE DEFORMATION PROCESS AHEAD OF CRACK TIP IN BCC SINGLE CRYSTAL[J]. Chinese Journal of Theoretical and Applied Mechanics, 1991, 23(4): 458-463. DOI: 10.6052/0459-1879-1991-4-1995-863

EFFECT OF HYDROGEN ON THE DEFORMATION PROCESS AHEAD OF CRACK TIP IN BCC SINGLE CRYSTAL

  • The deformation process and the strain field ahead of crack tip in Fe-3% Si single crystal were studied with SEM, grid method and computer image processing The distribution of strain field in plastic band around the crack tip is characterized by εyy= f(x)exp(-Ar) The general feature of the plastic deformation is similar in both charged or uncharged hydrogen specimens. However, the presence of hydrogen enhances the localized plastic band inhomogeneity and significantly increases the plasticity in high deep s...
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