Research Article
Inclusions and Microstructure of Steel Weld Deposits with Nanosize Titanium Oxide Addition
Table 2
Microstructure and phase transformation temperature of weld metal with different cooling rate.
| Weld metal | Cooling rate (K/s) | Microstructure | Phase transformation temperature (K) | Starting temperature | Finishing temperature |
| Ti-O | 293 | Ferrite | 1302 | 954 | Bainite | 891 | 771 | Martensite | 669 | 555 | 373 | Ferrite | 989 | 931 | Bainite | 811 | 725 | Martensite | 657 | 584 |
| TiO2 | 293 | Acicular ferrite | 987 | 782 | 373 | Acicular ferrite | 951 | 718 |
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