Abstract
This study focuses on longitudinal cracks created within the weld seam of electric resistance welded steel pipes, after quenching and tempering processes. Results of the structural examinations conducted by utilizing optical microscope, energy-dispersive spectrometer equipped scanning electron microscope and X-ray diffractometer suggest that manganese silicate-type complex oxides gathered within the weld seam played crucial role in crack initiation and propagation by triggering de-bonding at the complex oxide/matrix interface and/or splitting of the complex oxides under thermal stresses generated during cooling.
| Original language | English |
|---|---|
| Pages (from-to) | 657-662 |
| Number of pages | 6 |
| Journal | Journal of Failure Analysis and Prevention |
| Volume | 20 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Jun 2020 |
Bibliographical note
Publisher Copyright:© 2020, ASM International.
Keywords
- Cracking
- Pipe failure
- Thermal stress
- Welding