Abstract
Determination of the threshold stress intensity for stress corrosion cracking (KIscc) 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 KIscc 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 KIscc in a hot caustic solution was determined successfully. Intergranular stress corrosion cracking was confirmed with a scanning electron microscope.
| Original language | English |
|---|---|
| Pages (from-to) | 3202-3214 |
| Number of pages | 13 |
| Journal | Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science |
| Volume | 43 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2012 |
Bibliographical note
Funding Information:The authors thank Australian Research Council (ARC) for their support with a Linkage Project grant (LP0454226). They also thank Prof. Elena Pereloma, University of Wollongong, for her kind help with providing access to the simulation facility.
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys