Microstructure and Mechanical Properties in Warm Forged 27MnSiVS6 Microalloyed Steel
| Autor: | D. Ravichandar, G. Balachandran, Karthick Raghu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Impact toughness Transition temperature Fineness Metallurgy 0211 other engineering and technologies 02 engineering and technology engineering.material Microstructure 01 natural sciences Forging Ferrite (iron) 0103 physical sciences engineering Microalloyed steel Grain structure 021102 mining & metallurgy |
| Zdroj: | Transactions of the Indian Institute of Metals. 72:411-421 |
| ISSN: | 0975-1645 0972-2815 |
| DOI: | 10.1007/s12666-018-1492-8 |
| Popis: | The mechanical properties and microstructure of warm forged 27MnSiVS6 steel was evaluated at temperatures between 850 and 760 °C. The strength values showed enhancement by about 50 MPa, while the impact toughness was almost doubled. The microstructure showed increase in ferrite content with decreasing warm forging temperature, and the ferritic grains showed finer grain structure. While the increased ferrite content resulted in limiting the strength enhancement, the fineness of the grain structure led to a significant enhancement in impact toughness. The ductile-to-brittle transition temperature was pushed to a significantly low temperature in the warm forged steel compared to the hot-rolled steel. The microstructure evolution at various stages of processing was brought out. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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