The Effects of Adding TiC Powders to VANADIS 4 Tool Steel by HIP Treatment

Abstract:

In this study, the commercial VANADIS 4 (V-4) tool steel powders with sifting classification below 25 μm to be the matrix with fine titanium carbide (TiC) powder to produce a new material with high hardness and wear resistance, via powder metallurgy, sintering and HIP (Hot Isostatic Pressing) process. Experimental results showed that the TRS of original V-4 steel powder was 678.5 MPa, but below 25 μm of V-4 steel powder adding 35 wt% TiC enhanced to 868.6 MPa through 1673 K sintered. Beside, the hardness increased to HRA 86.2, TRS reached 1059.3 MPa, and porosity decreased to 1.0% of the V-4 steel powders (below 25 μm) added 35 wt% TiC after 1673 K sintered and heat treatments. Furthermore, HIP treatment can improve the microstructure and mechanical properties of V-4 composite material. TRS of V-4 composite steel increased to 1180.4 MPa and hardness was HRA 87.4 (HRC 71.7), porosity decreased to 0.71% after 1673 K sintered and HIP (1523 K, 150 MPa, 1 hour) treatments.

• Periodical: Advanced Materials Research (Volume 413)
• Pages: 426-431
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.413.426
• Online since: December 2011
• Authors: Shih Hsien Chang, Tzu Piao Tang, Jhewn Kuang Chen, Chung Ming Liu
• Keywords: Hot Isostatic Pressing, Sintering, TiC Powder, TRS, V-4 Tool Steel

References

[1] T. Garage: Proceedings of the International Conference on Hot Isostatic Pressing-Lulea/15-17 June, edited by The Swedish Institute of Production Engineering Research, (1987), pp.3-89.

[2] M. Koizumi: Hot Isostatic Pressing Theory and Applications, Int. Conf. on Hot Isostatic Pressing, Elsevier Applied Science, (1992), pp.11-187.

DOI: 10.1007/978-94-011-2900-8_1

[3] S.H. Chang, K.T. Huang and C.M. Liu: IJCMR. Vol. 24 (2011), p.113.

[4] S.H. Chang: Materials Transactions, Vol. 50 (2009), p.909.

[5] B.K. Lograsso and R.M. German: Progress in Powder Metallurgy, Metal Powder Industries Federation, Federation, Princeton, N.J., (1987), p.415.

[6] D. Hull and T.W. Clyne: An Introduction to Composite Materials, Cambridge University Press, New York, (1996), pp.34-35.

[8] R.M. German: Powder Metallurgy Science, Metal Powder Industries Federation, Princeton, N.J., (1994), pp.100-106.

[9] ASSAB Steels Taiwan CO., LTD. http: /www. assab-taiwan. com/ASPAC_Vanadis_4_EN. pdf (2008).

[10] L. Bouritis, A. Milonas and G.D. Papadimitriou: Surf. Coat. Technol. Vol. 165 (2003), p.286.

[11] M. Razavi, M.R. Rahimipour and A.H.R. Zamani: Mat. Sci. Eng. A Vol. 454-455 (2007), p.144.

[12] T.K. Bandyopadhyay, S. Chatterjee and K. Das: J. Mater. Sci. Vol. 39 (2004), p.5735.

[13] Flow Autoclave System, Inc.: Hot Isostatic Pressing Applications (1996).

[14] S.H. Chang, S.C. Lee and K.T. Huang: Mater. Trans. Vol. 51 (2010), p.1683.

[15] S.H. Chang: J. Alloys and Compd. Vol. 486 (2009), p.716.