Abstract
The paper offers mathematical equations of the influence of micro-jet cooling on structure and impact toughness properties of metal weld deposit. Weld metal deposit (WMD) was carried out for standard MIG welding and for MIG welding with micro-jet cooling. This new method is very promising mainly due to the high amount of AF (acicular ferrite) and low amount of MAC (self-tempered martensite, retained austenite, carbide) phases in WMD. That structure corresponds with very good mechanical properties ie. good impact toughness of welds at low temperature. Micro-jet cooling after welding can find serious application in automotive industry very soon. Until that moment only argon, helium, nitrogen and gas mixtures of argon were tested for micro-jet cooling after welding. The best results of mechanical properties of WMD in presented welding method correspond with micro-jet argon cooling.
| Original language | English |
|---|---|
| Pages (from-to) | 83-86 |
| Number of pages | 4 |
| Journal | Archives of Metallurgy and Materials |
| Volume | 63 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2018 |
Keywords
- Equations
- Ferrite
- Impact toughness
- Micro-jet
- Steel
- Welding
ASJC Scopus subject areas
- Metals and Alloys
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