Quench Temperature-Dependent Mechanical Properties During Nonisothermal Partitioning
| Autor: | Vikas C Srivastava, S. Ghosh Chowdhury, V. Rajinikanth, Chiradeep Ghosh, P. S. M. Jena, Monojit Dutta, G. K. Bansal |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Quenching Austenite Toughness Materials science Alloy steel Metallurgy 0211 other engineering and technologies Metals and Alloys Charpy impact test 02 engineering and technology engineering.material Condensed Matter Physics 01 natural sciences Mechanics of Materials 0103 physical sciences Ultimate tensile strength engineering Elongation Deformation (engineering) 021102 mining & metallurgy |
| Zdroj: | Metallurgical and Materials Transactions A. 51:5088-5100 |
| ISSN: | 1543-1940 1073-5623 |
| DOI: | 10.1007/s11661-020-05952-5 |
| Popis: | The present study demonstrates the role of hot rolling and quench temperature in determining the mechanical properties of low alloy steel processed through quenching and nonisothermal partitioning (Q&P) route. The results indicate that the abrasive wear resistance does not show any significant variation with quench temperature. However, a reduction in tensile strength and an increase in charpy impact toughness and elongation is observed with increasing quench temperature. Interestingly, the retained austenite shows high thermal stability at sub-zero temperature. Furthermore, during deformation through the wear process, the retained austenite experiences the TRIP effect that leads to improvement in wear resistance. The incorporation of hot rolling prior to Q&P led to a significant improvement in strength, energy absorption capability and wear resistance due to a considerable refinement of the microstructural constituents. |
| Databáze: | OpenAIRE |
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