Photothermal, Structural, and Microstructural Characterization of SAE4320H Automotive Steel
| العنوان: | Photothermal, Structural, and Microstructural Characterization of SAE4320H Automotive Steel |
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| المؤلفون: | R. Velázquez-Hernández, Alberto Lara-Guevara, D. Jaramillo-Vigueras, Mario E. Rodríguez-García, I. Rojas-Rodriguez, Karina del Ángel-Sánchez |
| المصدر: | Journal of Materials Engineering and Performance. 26:2040-2046 |
| بيانات النشر: | Springer Science and Business Media LLC, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | 010302 applied physics, Diffraction, Materials science, Scanning electron microscope, Annealing (metallurgy), Mechanical Engineering, Metallurgy, 02 engineering and technology, 021001 nanoscience & nanotechnology, Microstructure, 01 natural sciences, Indentation hardness, Forging, Mechanics of Materials, 0103 physical sciences, Vickers hardness test, General Materials Science, Pearlite, 0210 nano-technology |
| الوصف: | SAE4320H steel was characterized by photothermal radiometry spectroscopy, scanning electron microscopy, x-ray diffraction, and Vickers microhardness, to study metallurgical property changes as a result of the annealing heat treatment. Photothermal radiometry (PTR) images of hot forged and annealed SAE4320H steel were obtained to study the thermal changes, as a consequence of metallurgical microstructure changes that were produced by the heat treatment conditions. X-ray diffraction showed that the annealing process improves the crystalline quality of the SAE4320H steel and releases of any thermal stress. Widmanstatten microstructure was identified as a typical structure after the forging process. The Widmanstatten is a metallographic microstructure transformation to ferrite and pearlite which affected SAE4320H steel hardness and thermal properties. Vickers test showed that the hardness decreases as a result of the annealing process. A positive correlation between Vickers microhardness and PTR amplitude images was found, indicating that the annealing process increases the PTR signal. This methodology allows the determination of the changes in the Vickers microhardness from a non-contact and remote method as in PTR. |
| تدمد: | 1544-1024 1059-9495 |
| DOI: | 10.1007/s11665-017-2633-7 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::97a387a318921495939cae0c6ffc6cc1 https://doi.org/10.1007/s11665-017-2633-7 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........97a387a318921495939cae0c6ffc6cc1 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15441024 10599495 |
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| DOI: | 10.1007/s11665-017-2633-7 |