Mechanical Properties and Corrosion Resistance of Nitrided or Oxinitrided, and Powder Painted Regular and Interstitial Free (IF) Drawing Steel Sheet
✍ Scribed by Z. Rogalski; Z. Łataś
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 472 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0933-5137
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✦ Synopsis
Abstract
Specimens of 0.8 mm thick regular and interstitial free (IF) drawing steel sheet have been nitrided in fluidised bed for 2 hours at 620 °C and 560 °C with and without a post‐oxidation, and slow and accelerated cooling. As a result, surface hardness, yield and tensile strength of the sheets increased considerably without a critical loss of ductility. Resistance welds between the sheets did not lose their original strength after nitriding‐oxinitriding. Nitrided‐oxinitrided at 620 °C and then powder painted sheets, as compared with powder painted raw sheets, were more corrosion resistant in neutral salt spray and climatic tests. Some mechanical and anticorrosion properties of the IF steel sheet that had undergone the nitriding‐oxinitriding processes were definitely better than those of equally processed regular steel sheet.