پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 158 |
| تعداد شماره‌ها | 6,225 |
| تعداد مقالات | 67,685 |
| تعداد مشاهده مقاله | 114,963,837 |
| تعداد دریافت فایل اصل مقاله | 89,638,194 |
Martensite phase reversion-induced nano/ ultrafine grained AISI 304L stainless steel with magnificent mechanical properties | ||
| Journal of Ultrafine Grained and Nanostructured Materials | ||
| مقاله 8، دوره 48، شماره 1، شهریور 2015، صفحه 53-58 اصل مقاله (505.04 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.7508/jufgnsm.2015.01.008 | ||
| نویسندگان | ||
| Mohammad Shirdel1؛ Saber Neisi-Minaei1؛ Hamed Mirzadeh* 1؛ Mohammad Habibi-Parsa2 | ||
| 1School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran | ||
| 2School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran 2. Center of Excellence for High Performance Materials, School of Metallurgy and Materials Engineering, University of Tehran, Tehran, Iran 3. Advanced Metalforming and Thermomechanical Processing Laboratory, School of Metallurgy and Materials Engineering, University of Tehran, Tehran, Iran | ||
| چکیده | ||
| Austenitic stainless steels are extensively used in various applications requiring good corrosion resistance and formability. In the current study, the formation of nano/ ultrafine grained austenitic microstructure in a microalloyed AISI 304L stainless steel was investigated by the advanced thermomechanical process of reversion of strain-induced martensite. For this purpose, samples were subjected to heavy cold rolling to produce a nearly complete martensitic structure. Subsequently, a wide range of annealing temperatures (600 to 800°C) and times (1 to 240 min) were employed to assess the reversion behavior and to find the best annealing condition for the production of the nano/ultrafine grained austenitic microstructure. Microstructural characterizations have been performed using X-ray diffraction (XRD), scanning electron microscopy (SEM), and magnetic measurement, whereas the mechanical properties were assessed by tensile and hardness tests. After thermomechanical treatment, a very fine austenitic structure was obtained, which was composed of nano sized grains of ~ 85 nm in an ultrafine grained matrix with an average grain size of 480 nm. This microstructure exhibited superior mechanical properties: high tensile strength of about 1280 MPa with a desirable elongation of about 41%, which can pave the way for the application of these sheets in the automotive industry. | ||
| کلیدواژه‌ها | ||
| austenitic stainless steel؛ martensite reversion؛ Nanomaterials؛ phase transformations | ||
| مراجع | ||
|
[1]. Lo, K. H., Shek, C. H., Lai, J. K. L., Mater. Sci. Eng. R Vol. 65 (2009) pp. 39–104. [2]. Lee, S. J., Park, Y. M., Lee, Y. K., Mater. Sci. Eng. A Vol. 515 (2009) pp. 32–7. [3]. Johannsen, D. L., Kyrolainen, A., Ferreira, P. J., Metal. Mater. Trans. A Vol. 37 (2006) pp. 2325–38. [4]. Tomimura, K., Takaki, S., Tanimoto, S., Tokunaga, Y., ISIJ Int. Vol. 31 (1991) pp. 721–7. [5]. Mirzadeh, H., Najafizadeh, A., Mater. Character. Vol. 59 (2008) pp. 1650–54. [6]. Weidner, A., Hangen, U. D., Biermann, H., Phil. Mag. Lett. Vol. 94 (2014) pp. 522–30. [7]. Moallemi, M., Najafizadeh, A., Kermanpur, Rezaee, A., Mater. Sci. Eng. A Vol. 530 (2011) pp. 378–81. [8]. Eskandari, M., Najafizadeh, A., Kermanpur, A., Karimi, M., Mater. Des. Vol. 30 (2009) 3869- 3872. [9]. Mirzadeh, H., Najafizadeh, A., Mater. Des. Vol. 30 (2009) pp. 570–3. [10]. Ma,Y., Jin, J. E., Lee, Y. K., Mater. Sci. Forum Vol. 475 (2005) pp. 43–48. [11]. Somani, M. C., Juntunen, P., Karjalainen, L. P., Misra, R. D. K.,Kyrolainen, A., Metal. Mater. Trans. A Vol. 40 (2009) pp. 739–44. [12]. Shirdel, M., Mirzadeh, H., Habibi Parsa, M., Metall. Mater. Trans. A Vol. 45 (2014) pp. 5185–93. [13]. Angel, T., J. Iron and Steel Inst. Vol. 177 (1954) pp. 165–74. [14]. Olson, G. B., Cohen, M., Metal. Trans. A Vol. 6 (1975) pp. 791–5. [15]. Huang, G. L., Matlock, D. K., Krauss, G., Metal. Mater. Trans. A Vol. 20 (1989) pp. 1239–46. [16]. Schramm, R. E., Reed R. P., Metal. Mater. Trans. A Vol. 6 (1975) pp. 1345–51. [17]. Shirdel, M., Mirzadeh, H., Habibi Parsa, M., Mater. Charact. Vol. 97 (2014) pp. 11–7. [18]. Di Schino, A., Salvatori, I., Kenny, J. M., J. Mater. Sci. Vol. 37 (2002) pp. 4561–66. [19]. Chen, M., Ma, E., Hemker, K. J., Sheng, H., Wang, Y., Cheng, X., Science Vol. 300 (2003) pp. 1275–7. | ||
|
آمار تعداد مشاهده مقاله: 5,796 تعداد دریافت فایل اصل مقاله: 2,086 |
||