Abstract
Laboratory investigations have been carried out on a copper alloyed Interstitial free steel to develop a high strength steel for automotive applications in hot rolled conditions. The aging characteristics for a wide range of temperature and time have been documented and discussed in terms of diffusivity and solubility of copper in α iron. Coiling temperature, in general, influences the strength formability parameters of the hot rolled steel owing to its effect on copper precipitation. A high strength hot rolled steel for automotives with high strain hardening rate can be developed by adopting low temperature coiling at 550°C, without using any additional step in the normal processing schedule of interstitial free steels. Deep drawability or the Lankford parameter appears not to be influenced much by the coiling temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 561-566 |
| Number of pages | 6 |
| Journal | Materials Science and Technology |
| Volume | 23 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 2007 |
Keywords
- Coiling temperature
- Copper alloyed interstitial free steel
- Copper precipitation
- Strain hardening
- Strength formability parameters
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