Understanding TiN Precipitation Behavior during Solidification of SWRH 92A Tire Cord Steel by Selected Thermodynamic Models
| Autor: | Lu Wang, Zheng-Liang Xue, Xue-Gong Bi, Yi-Liang Chen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Toughness
Materials science Precipitation (chemistry) Process Chemistry and Technology Metallurgy 0211 other engineering and technologies chemistry.chemical_element Liquid phase Bioengineering 02 engineering and technology segregation models 021001 nanoscience & nanotechnology Titanium nitride TiN inclusion chemistry.chemical_compound Dendrite (crystal) chemistry Phase (matter) Chemical Engineering (miscellaneous) solidification 0210 nano-technology Tin Carbon 021102 mining & metallurgy tire cord steel |
| Zdroj: | Processes Volume 8 Issue 1 |
| ISSN: | 2227-9717 |
| DOI: | 10.3390/pr8010010 |
| Popis: | Tire cord steel is widely used in the tire production process of the vehicle manufacturing industry due to its excellent strength and toughness. Titanium nitride (TiN) inclusion, existing in tire rod, has a seriously detrimental effect on the fatigue and drawing performances of the tire steel. In order to control its amount and morphology, the precipitation behavior of TiN during solidification in SWRH 92A tire cord steel was analyzed by selected thermodynamic models. The calculated results showed that TiN cannot precipitate in the liquid phase region regardless of the selected models. However, the precipitation of TiN in the mushy zone would occur at the final stage during the solidification process (at solid fractions greater than 0.98) if the LRSM (Lever-rule model was applied for the N and Scheil model for Ti) or Ohnaka models (without considering the effect of carbon on secondary dendrite arm spacing (SDAS)) were adopted. For the Ohnaka model, in the case when the effect of carbon on SDAS was considered, TiN would probably precipitate in the solid phase zone rather than precipitate in the liquid phase region or mushy zone. |
| Databáze: | OpenAIRE |
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