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- Title
Circumventing Practical Difficulties in Determination of Threshold Stress Intensity for Stress Corrosion Cracking of Narrow Regions of Welded Structures.
- Authors
Pal, Sarvesh; Singh Raman, R.; Rihan, R.
- Abstract
Determination of the threshold stress intensity for stress corrosion cracking ( K) of narrow areas such as weld and heat-affected zone (HAZ) of a weldment is a nontrivial task because of the requirements of large specimens in testing by the traditional techniques and the difficulty of restricting crack propagation to narrow regions in such specimens. This article describes a successful application of the circumferential notch tensile (CNT) technique to determine the K of narrow regions of the weld and HAZ. Also, the microstructure of the HAZ of the manual metal arc-welded steel was simulated over a relatively small length of specimens and its K in a hot caustic solution was determined successfully. Intergranular stress corrosion cracking was confirmed with a scanning electron microscope.
- Subjects
STRESS corrosion cracking; WELDED joints; CRACK propagation (Fracture mechanics); MICROSTRUCTURE; SCANNING electron microscopy; IRON &; steel plate welding; SIMULATION methods &; models
- Publication
Metallurgical & Materials Transactions. Part A, 2012, Vol 43, Issue 9, p3202
- ISSN
1073-5623
- Publication type
Article
- DOI
10.1007/s11661-012-1119-3