Effect of Deep Cryogenic Treatment on Hardness and Wear Behavior of 5120 AISI Steel

Authors

Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran

Abstract

In this paper the effect of deep cryogenic treatment time on microstructure and tribological behavior of AISI 5120 case hardennig steel is studied. The disk shape samples were carburized at 920 ◦C for 6 hours and air cooled; after austenitizing, the samples were quenched in oil.Then immediately after quenching and sanding, the sample were kept in liquid nitrogen for 1, 24, 30 and 48 h and then tempered at 200 ◦C for 2 hours. The wear test was done by ball on disk method using of WC ball at 80 and 110 N load. For characterization of carbides, the etchant solution of CuCl2 (5 gr)+HCl (100 mL) + ethanol (100 mL) was used. The hardness of samples before and after of tempering was measured by vicers method at 300 N load.. The amount of retained austenite was measured by X Ray Diffraction method. For 1DCT and 24DCT samples it was about 8% and 4%; in the other samples, the retained austenite peal was so decreased that it was not visible. The result showed that the hardness increases by deep cryogenic treatment in all speciments. While wear resistance increases in 1DCT and 24DCT samples, it decreases for 30DCT and 48DCT samples in compare with Conventional heat treatment (CHT) sample in both applied loads, such that , 48DCT sample has the least wear resistance. The cause of increament of hardness is due to reduction in amount of retained austenite as a result of deep cryogenic treatment and decreasing in wear resistance after 24 hour, is due to carbide growth and nonhemogenuse distribution in microstructure and then weakening of matrix. So the 24 hour deep cryogenic treatment was the best optimal for AISI 5120 steel.

Keywords

References

2. Das, D., Dutta, A.K., Ray, K.K., "Influence of Varied Cryotreatment on the Wear Behavior of AISI D2 Steel", Wear, Vol. 266, pp. 267-309, 2009.
3. Akhbarizadeh, A., Shafyei, A., Golozar, M.A., "Effects of Cryogenic Treatment on Wear Behavior of D6 Tool Steel", Materials & Design, Vol. 30,
pp. 3259-3264, 2009.
4. Akhbarizadeh, A., Golozar, M.A., Shafeie, A., Kholghy, M., "Effects of Austenizing Time on Wear Behavior of D6 Tool Steel after Deep Cryogenic Treatment", Journal of Iron and Steel Research,
Vol. 16, pp. 29-32, 2009.
5. Bensely, A., Prabhakaran, A., Mohan Lal, D., Nagarajan, G., "Enhancing the Wear Resistance of Case Carburized Steel (En 353) by Cryogenic Treatment", Cryogenics, Vol. 45, pp. 747-754, 2005.
6. Behara, A., Mishra, S.C., "Comparative Study of Cryo-Treated Steel", International Journal of Scientific & Technology Research, Vol. 1, 2012.
PP. 46-49.
7. Da Silva Flávio, J., Franco Sinésio, D., Machado Álisson, R., Ezugwu Emmanuel, O., Souza Jr Antônio, M., "Performance of Cryogenically Treated HSS Tools", Wear, Vol. 261, pp. 674-685, 2006.
8. Baldissera, P., Delprete, C., "Effects of Deep Cryogenic Treatment on Static Mechanical Properties of 18NiCrMo5 Carburized Steel", Materials & Design, Vol. 30, pp. 1435-1440, 2009.
9. Bensely, A., Venkatesh, S., Mohan Lal, D., Nagarajan G., Rajadurai A., Junik Krzysztof., "Effect of Cryogenic Treatment on Distribution of Residual Stress in Case Carburized En 353 Steel", Materials Science and Engineering, Vol. 479, pp. 229-235, 2008.
10. Senthilkumar, D., Rajendran, I., "Influence of Shallow and Deep Cryogenic Treatment on Tribological Behavior of En 19 Steel", Journal of Iron and Steel Research, Vol. 18, p. 53-59, 2011.
11. Podgornik, B., Majdic, F.,Leskovsek, V., Vizintin, J., “Improving Tribological Properties of Tool Steels through Combination of Deep-Cryogenic Treatment and Plasma Nitriding”, Wear, Vol. 288, pp. 88-93, 2012.
12. Gogte, Ch., Peshwe, D., Likhite, A., Lomte, S., "On the Mechanism of the Effect of the Cryogenic Treatment on High Speed Steels". Advanced Materials Research, Vol. 383-390, pp. 7138-7142, 2012.
13. Bensely, A., Senthilkumar, D., Mohan Lal, D., Nagarajan., G., Rajadurai, A., ”Effect of cryogenic treatment on tensile behavior of case carburized steel-815M17", Materials Characterization, Vol. 58, pp 485–491, 2007.
14. Wale, A.D., Wakchaure, V.D., "Effect of Cryogenic Treatment on Mechanical Properties of Cold Work Tool Steels", International Journal of Modern Engineering Research, Vol. 3, pp. 149-154, 2013.
15. Koneshlou, M., Meshinchi Asl, K., Khomamizadeh, F., "Effect of Cryogenic Treatment on Microstructure, Mechanical and Wear Behaviors of AISI H13 Hot Work Tool Steel", Cryogenics, Vol. 51, p. 55-61, 2011.
16. Dong, Y., Lin, X., Xiao, H.S., "Deep cryogenic Treatment of High-Speed Steel and its Mechanism", Heat Treatment of Metals, Vol. 25, pp. 55-59,
1998.
17. Das, D., Dutta, A.K., Toppo, V. and Ray, K.K., "Effect Of Deep Cryogenic Treatment On The Carbide Precipitation and Tribological Behavior of D2 Steel", Journal of Materials Manufacturing Process, Vol. 22, No. 4, pp. 474-480, 2007.
18. Das, D., Dutta, A.K., Ray, K.K., "Influence of Temperature of Sub-Zero Treatments on the Wear Behaviour of Die Steel", Wear, Vol. 267, pp. 1361-1370, 2009.
19. Amini, K., Nategh, S., Shafyei, A., “Influence of Different Cryotreatments on Tribological Behavior of 80CrMo12 5 Cold Work Tool Steel”, Materials & Design, Vol. 31, pp. 4666-75, 2010.
20. Meng, F., Tagashira, K., Azume, R., Sohma, H., "Role of eta Carbide Precipitation in the Wear Resistance Improvements of Fe-12cr-Mo-V-1.4c Tool Steel by Cryogenic Treatment", ISIJ International, Vol. 34, pp. 205-210, 1994.
21. Huang, J.Y., Zhu, Y.T., Liao, X.Z., Beyerlein, I.J., Bourke, M.A., Mitchell. T.E., "Microstructure of Cryogenic Treated M2 Tool Steel", Materials Science and Engineering A, Vol. 339, pp. 241-244, 2003.
22. Dhar, N.R., Paul, S., Chattopadhyay, A.B., "The Influence of Cryogenic Cooling on Tool Wear, Dimensional Accuracy and Surface Finish in Turning AISI 1040 and E4340c Steels", Wear, Vol. 249,
pp. 932-942, 2001.
23. Bensely, A., Senthilkumar, D., Mohan Lal, D., Nagarajan, G., Rajadurai, A., "Effect of Cryogenic Treatment on Tensile Behavior of Case Carburized Steel-815m17", Materials Characterization, Vol. 58, pp. 485-491, 2007.
24. Collins, D.N., Dormer, J., “Deep Cryogenic Treatment of a D2 Cold-Worked Tool Steel”, Conventional heat treatment, Vol. 24, pp. 71–74, 1997.
25. Das, D., Dutta, A.K., Ray, K.K., “Optimization of the Duration of Cryogenic Processing to Maximize Wear Resistance of AISI D2 Steel”, Cryogenics,
Vol. 49, pp. 176-184, 2009.
Journal of Advanced Materials in Engineering (Esteghlal)
Volume 35, Issue 3
December 2016
Pages 57-67

Files

Share

How to cite

Statistics

ارتقاء امنیت وب با وف ایرانی