Preview

Заводская лаборатория. Диагностика материалов

Расширенный поиск
Доступ открыт Открытый доступ  Доступ закрыт Только для подписчиков

Electroplastic effect in specimens of duplex stainless steel under tension

https://doi.org/10.26896/1028-6861-2020-86-10-41-45

Полный текст:

Аннотация

Duplex stainless steels (DSSs) possess a typical biphasic microstructure consisting of equal amount of ferrite and austenite, which provides better combination of the mechanical and corrosion properties compared to the austenitic grade. Despite their good processability, they suffer from embrittlement of secondary phases in a very specific temperature range 450 – 1000°C depending on the composition. Solubilizing treatment after processing is required to obtain a perfect balance between austenite and ferrite and moreover, to dissolve any secondary phases that could have been formed during processing. This implies very high energy consumption of forming processes due to a high temperature (above 1000°C) or high power needed for the forming machines. The electroplastic effect could be used to reduce the force needed to form the material and extend the forming limits. The effect consists in direct interaction between the electrons of the electrical current and the ions of the material. The current mode (e.g., continuous current, pulsed current, pulse duration and duty cycle) plays an important role in the occurrence and the extent of the electroplastic effect. The electroplastic effect is investigated under tension in two-phase duplex stainless steel UNS S32205. Tensile tests under different current conditions (current density and frequency) are compared to room temperature tests. The best effect in terms of reduction of the ultimate tensile strength and increase in the fracture strain is achieved by introducing a multi-pulse current with the maximum density and pulse duration.

Об авторах

C. Gennari
University of Padova
Италия

Claudio Gennari

Department of Industrial Engineering

9, Via Marzolo, Padova, 35131



I. Calliari
University of Padova
Италия

Irene Calliari

Department of Industrial Engineering

9, Via Marzolo, Padova, 35131



V. Stolyarov
Mechanical Engineering Research Institute of RAS
Россия

Vladimir Stolyarov

4, M. Kharitonievsky per., Moscow, 101990



Список литературы

1. Hsieh C. C., Wu W. Overview of Intermetallic Sigma Phase Precipitation in Stainless Steels / ISRN Metall. 2012. Vol. 2012. P. 1 – 16. DOI: 10.5402/2012/732471.

2. Kashiwar A., Vennela N. P., Kamath S. L., Khatirkar R. K. Effect of solution annealing temperature on precipitation in 2205 duplex stainless steel / Mater. Charact. 2012. Vol. 7. P. 55 – 63. DOI: 10.1016/j.matchar.2012.09.008.

3. Nilsson J. O., in: Duplex stainless steels / J. O. Nilsson, Ed. — Maastricht, Netherlands: KCI Publishing, 1997. P. 73 – 82.

4. Chan K. W., Tjong S. C. Effect of secondary phase precipitation on the corrosion behavior of duplex stainless steels / Materials (Basel). 2014. Vol. 7. P. 5268 – 5304. DOI: 10.3390/ma7075268.

5. Gennari C., Pezzato L., Piva E., Gobbo R., Calliari I. Influence of small amount and different morphology of secondary phases on impact toughness of UNS S32205 Duplex Stainless Steel / Mater. Sci. Eng. A2018. Vol. 729. P. 149 – 156. DOI: 10.1016/j.msea.2018.05.063.

6. Sorg M., Hörtnagl A., Wendeler C., Gümpel P., in: ESSC and DUPLEX 2019 — 10th European Stainless Steel Conference — Science and Market, 6th European Duplex Stainless Steel Conference and Exhibition, 2019. P. 407 – 413.

7. Troitskii, O. A., Stashenko V. I. Electroplastic wire drawing: A promising method of production of lightweight wire and cable / J. Mach. Manuf. Reliab. 2015. Vol. 44. P. 758 – 765. DOI: 10.3103/S1052618815080087.

8. Conrad H., Sprecher A. F., Cao W. O., Lu X. P. The Effect of Electricity on the Mechanical Properties of Metals / J. Miner. Met. Mater. Soc. 1990. Vol. 42. P. 28 – 33. DOI: 10.1007/BF03221075.

9. Troitskii O. A. The electroplastic effect in metals / Dislocations Solids. 8 Basic Probl. Appl. 1984. Vol. 1. P. 497 – 540.

10. Stolyarov V. Features of Electroplastic Effect in Alloys with Martensite Transformation / Acta Metall. Sin. (English Letters). 2018. Vol. 31. P. 1305 – 1310. DOI: 10.1007/s40195-018-0747-z.

11. Stolyarov V. V. Electroplastic effect in nanocrystal and amorphous alloys / Inorg. Mater. 2016. Vol. 52. P. 1541 – 1544. DOI: 10.1134/S0020168516150152.

12. Gennari C., Pezzato L., Simonetto E., Gobbo R., Forzan M., and Calliari I. Investigation of Electroplastic Effect on Four Grades of Duplex Stainless Steels / Materials (Basel). 2019. Vol. 12. P. 1911. DOI: 10.3390/ma12121911.

13. Fan R., Magargee J., Hu P., Cao J. Influence of grain size and grain boundaries on the thermal and mechanical behavior of 70/30 brass under electrically-assisted deformation / Mater. Sci. Eng. A2013. Vol. 574. P. 218 – 225. DOI: 10.1016/j.msea.2013.02.066.

14. Stolyarov V. V., Tsarenko Y. V., Rubanik V. V. Features of the deformation behavior under pulse current and ultrasound in materials with phase transformation / IOP Conf. Ser. Mater. Sci. Eng. DOI: 10.1088/1757-899X/447/1/012048.

15. Gennari C., Pezzato L., Tarabotti G., Zambon A., Di Schino A., Calliari I., Schino A. Di, Calliari I., Di Schino A., Calliari I. Influence of Electropulsing Treatments on Mechanical Properties of UNS S32750 Duplex Stainless Steel / Materials (Basel). 2020. Vol. 13. P. 1613. DOI: 10.3390/ma13071613.

16. Kapoor R., Sunil S., Bharat Reddy G., Nagaraju S., Kolge T. S., Sarkar S. K., Sarita, Biswas A., Sharma A. Electric current induced precipitation in maraging steel / Scr. Mater. 2018. Vol. 154. P. 16 – 19. DOI: 10.1016/j.scriptamat.2018.05.013.

17. Zhao J., Wang G. X., Dong Y., Ye C. Multiscale modeling of localized resistive heating in nanocrystalline metals subjected to electropulsing / J. Appl. Phys. 2017. Vol. 122.085101. DOI: 10.1063/1.4998938.

18. Ruszkiewicz B. J., Mears L., Roth J. T. Investigation of Heterogeneous Joule Heating as the Explanation for the Transient Electroplastic Stress Drop in Pulsed Tension of 7075-T6 Aluminum / J. Manuf. Sci. Eng. 2018. Vol. 140. P. 091014. DOI: 10.1115/1.4040349.


Для цитирования:


Gennari C., Calliari I., Stolyarov V. Electroplastic effect in specimens of duplex stainless steel under tension. Заводская лаборатория. Диагностика материалов. 2020;86(10):41-45. https://doi.org/10.26896/1028-6861-2020-86-10-41-45

For citation:


Gennari C., Calliari I., Stolyarov V. Electroplastic effect in specimens of duplex stainless steel under tension. Industrial laboratory. Diagnostics of materials. 2020;86(10):41-45. https://doi.org/10.26896/1028-6861-2020-86-10-41-45

Просмотров: 52


ISSN 1028-6861 (Print)
ISSN 2588-0187 (Online)