| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 860510 | Procedia Engineering | 2013 | 6 Pages |
Abstract
Detailed analysis of the progressive accumulation of creep strain and cavitation across the joints were carried out on performing interrupted creep tests on joint specimens fabricated by single-pass activated TIG (A-TIG) and multi-pass TIG (MP-TIG) welding processes having grid marking inscribed on them before creep test. The localized creep deformation rate in the weld metal was faster in the MP-TIG joint than in the A-TIG joint. Creep cavitation was more pronounced in the MP-TIG joint. The different deformation and cavitation responses of the joints have been attributed to δ-ferrite contents and higher strength disparity within the weld metal.
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