Abstract
A number of common defects in stainless steel welding are the result of the presence of hydrogen in the weld. In addition, the service life of the stainless steel joints is significantly dependent on the presence of hydrogen in the respective environment and the susceptibility of the various weld microstructures to hydrogen degradation. Hydrogen’s effects on various Tungsten Inert Gas (TIG) welded SMSS microstructures are investigated by means of X-ray diffraction (XRD) and optic (OM) and electron microscopy (SEM). A number of methods for estimating the amount of absorbed hydrogen have been employed. Hydrogen interaction with structural defects and the characteristics of hydrogen desorption have been studied by means of thermal desorption spectroscopy (TDS). The effects of the respective microstructure on hydrogen absorption and desorption behavior is discussed in detail. The powerful abilities of TDS for studying the absorption/desorption behavior and trapping effects in supermartensitic stainless steel TIG welds is also examined.
| Original language | English |
|---|---|
| Title of host publication | Coresource 4 |
| Publisher | Springer International Publishing |
| Pages | 457-472 |
| Number of pages | 16 |
| ISBN (Electronic) | 9783319284347 |
| ISBN (Print) | 9783319284323 |
| DOIs | |
| State | Published - 1 Jan 2016 |
Keywords
- Heat Affected Zone
- Hydrogen Evolution
- Martensitic Stainless Steel
- Trap Site
- Weld Metal
ASJC Scopus subject areas
- General Materials Science
- General Engineering
- General Physics and Astronomy
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