| تعداد نشریات | 24 |
| تعداد شمارهها | 863 |
| تعداد مقالات | 7,715 |
| تعداد مشاهده مقاله | 13,773,855 |
| تعداد دریافت فایل اصل مقاله | 11,820,298 |
An Analysis of Efficiency Parameter and its Modifications Utilized for Development of Processing Maps | ||
| Iranian Journal of Materials Forming | ||
| دوره 10، شماره 4، دی 2023، صفحه 45-51 اصل مقاله (1.63 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22099/ijmf.2024.49537.1283 | ||
| نویسندگان | ||
| H. Eskandari؛ M. Reihanian* ؛ S.R. Alavi Zaree | ||
| Department of Materials Science and Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran | ||
| چکیده | ||
| The efficiency parameter, which is frequently utilized in the literature, can be expressed as η=(2m/m+1), where m is the strain rate sensitivity. The efficiency parameter is determined from a set of m values based on the strain rate and the temperature displayed in a three-dimensional map known as the power dissipation map. This method works if the test results for σ vs. 𝜀̇ at constant strain and temperature have a power-law distribution. Otherwise, it is incorrect to assess dissipation efficiency using the of the 𝑙𝑛𝜎 − 𝑙𝑛𝜀̇ graph. The present study proposes additional adjustments to the existing ones suggested in the literature for the prior technique by offering a scheme for evaluating η. Power dissipation maps for different techniques are developed at strains of 0.2 and 0.7 using X80 steel as a model material. In spite of the fact that the approaches rely on different assumptions and that there are differences in the temperature and strain rate at which the dissipation efficiency peak appears, there are some similarities in the power dissipation maps of all approaches when they are compared at different strains. In conclusion, although the conventional approach is erroneous, it is the most feasible and straightforward one. | ||
| کلیدواژهها | ||
| Metal forming؛ Hot deformation؛ Efficiency parameter؛ Dissipation map؛ Processing map | ||
| مراجع | ||
|
[1] Prasad, Y. V. R. K., & Seshacharyulu, T. J. M. R. (1998). Modelling of hot deformation for microstructural control. International Materials Reviews, 43(6), 243-258. https://doi.org/10.1179/imr.1998.43.6.243
[2] Prasad, Y. V. R. K. (2003). Processing maps: A status report. Journal of Materials Engineering and Performance, 12, 638-645. https://doi.org/10.1361/105994903322692420
[3] Narayana Murty, S. V. S., Nageswara Rao, B., & Kashyap, B. P. (2000). Instability criteria for hot deformation of materials. International Materials Reviews, 45(1), 15-26. https://doi.org/10.1179/0950660 00771048782
[4] Pu, E., Zheng, W., Xiang, J., Song, Z., & Li, J. (2014). Hot deformation characteristic and processing map of superaustenitic stainless steel S32654. Materials Science and Engineering: A, 598, 174-182. https://doi.org/10.101 6/j.msea.2014.01.027
[5] Cai, D., Xiong, L., Liu, W., Sun, G., & Yao, M. (2009). Characterization of hot deformation behavior of a Nibase superalloy using processing map. Materials & Design, 30(3), 921-925. https://doi.org/10.1016/j.matdes .2008.05.006
[6] Luo, J., Li, M., Yu, W., & Li, H. (2009). Effect of the strain on processing maps of titanium alloys in isothermal compression. Materials Science and Engineering: A, 504(1-2), 90-98. https://doi.org/10.1016 /j.msea.2008.10.020
[7] Prasad, Y. V. R. K., Gegel, H. L., Doraivelu, S. M., Malas, J. C., Morgan, J. T., Lark, K. A., & Barker, D. R. (1984). Modeling of dynamic material behavior in hot deformation: Forging of Ti-6242. Metallurgical Transactions A, 15, 1883-1892. https://doi.org/10.1007/ BF02664902
[8] Huang, H. Q., Di, H. S., Yan, N., Zhang, J. C., Deng, Y. G., Misra, R. D. K., & Li, J. P. (2018). Hot deformation behavior and processing maps of a high Al-low Si transformation-induced plasticity steel: microstructural evolution and flow stress behavior. Acta Metallurgica Sinica (English Letters), 31, 503-514. https://doi.org/10. 1007/s40195-017-0676-2
[9] Ebrahimi, R., & Najafizadeh, A. (2004). Optimization of hot workability in Ti-IF steel by using the processing map. International Journal of Iron & Steel Society of Iran, 1(1), 1-7.
[10] Murty, S. V. S. N., Sarma, M. S., & Rao, B. N. (1997). On the evaluation of efficiency parameters in processing maps. Metallurgical and Materials Transactions A(USA), 28(7), 1581-1582. https://doi.org/10.1007/s11661-997-0219-y
[11] Kim, W. J., & Jeong, H. T. (2020). Construction of processing maps combined with deformation mechanism maps using creep deformation equations. Journal of Materials Research and Technology, 9(6), 13434-13449. https://doi.org/10.1016/j.jmrt.2020.09.023
[12] Rieiro, I., Carsí, M., & Ruano, O. A. (2017). A new stability criterion for the hot deformation behavior of materials: application to the AZ31 magnesium alloy. Metallurgical and Materials Transactions A, 48(7), 3445-3460. https://doi.org/10.1007/s11661-017-4102-1
| ||
|
آمار تعداد مشاهده مقاله: 243 تعداد دریافت فایل اصل مقاله: 142 |
||