Abstract
| Language | English |
|---|---|
| Pages | 423-431 |
| Number of pages | 9 |
| Journal | Journal of Microscopy |
| Volume | 233 |
| Issue number | 3 |
| Early online date | 27 Feb 2009 |
| DOIs | |
| Publication status | Published - Mar 2009 |
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Keywords
- crack growth
- digital image correlation (DIC)
- grain boundary engineering (GBE)
- in situ observation
- intergranular stress corrosion (IGSCC)
- stainless steel
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In situ observation of intergranular crack nucleation in a grain boundary controlled austenitic stainless steel. / Rahimi, Salaheddin; Engelberg, Dirk; Duff, Jonathan; Marrow, James.
In: Journal of Microscopy, Vol. 233, No. 3, 03.2009, p. 423-431.Research output: Contribution to journal › Article
TY - JOUR
T1 - In situ observation of intergranular crack nucleation in a grain boundary controlled austenitic stainless steel
AU - Rahimi, Salaheddin
AU - Engelberg, Dirk
AU - Duff, Jonathan
AU - Marrow, James
PY - 2009/3
Y1 - 2009/3
N2 - Grain boundary engineering has been proposed to increase the lifetime performance of sensitized austenitic stainless steel in aggressive environments. Increased microstructure resistance is typically associated with higher fractions of twin (Sigma 3) grain boundaries, but there is uncertainty about the properties and role of other boundaries. To develop predictive models for stress corrosion crack nucleation, more information is required about how grain boundary crystallography and the orientations of the grain boundary plane and its surrounding grains affect crack development. Digital image correlation combined with electron backscatter diffraction has been used to characterize the microstructure and to observe, in situ, the nucleation and propagation of short stress corrosion cracks in thermo-mechanically processed type 304 stainless steel. The crack path and its growth rate have been determined and are found to be influenced by the microstructure.
AB - Grain boundary engineering has been proposed to increase the lifetime performance of sensitized austenitic stainless steel in aggressive environments. Increased microstructure resistance is typically associated with higher fractions of twin (Sigma 3) grain boundaries, but there is uncertainty about the properties and role of other boundaries. To develop predictive models for stress corrosion crack nucleation, more information is required about how grain boundary crystallography and the orientations of the grain boundary plane and its surrounding grains affect crack development. Digital image correlation combined with electron backscatter diffraction has been used to characterize the microstructure and to observe, in situ, the nucleation and propagation of short stress corrosion cracks in thermo-mechanically processed type 304 stainless steel. The crack path and its growth rate have been determined and are found to be influenced by the microstructure.
KW - crack growth
KW - digital image correlation (DIC)
KW - grain boundary engineering (GBE)
KW - in situ observation
KW - intergranular stress corrosion (IGSCC)
KW - stainless steel
UR - http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2818.2009.03133.x/abstract
U2 - 10.1111/j.1365-2818.2009.03133.x
DO - 10.1111/j.1365-2818.2009.03133.x
M3 - Article
VL - 233
SP - 423
EP - 431
JO - Journal of Microscopy
T2 - Journal of Microscopy
JF - Journal of Microscopy
SN - 0022-2720
IS - 3
ER -