Development of PM Stainless Steels with Improved Properties through Liquid Phase Sintering

Abstract:

Article Preview

The use of boron for successfully obtaining high density PM stainless steels with improved mechanical properties and corrosion resistance is presented. Boron is added as part of master alloys which have been specifically designed to provide the formation of wetting liquid phases with excellent characteristics for producing controlled densification and alloying of 316L and 304L austenitic stainless steels. The as-sintered density and properties of these alloys is determined by the amount of master alloy, the chemical composition of the stainless steel powder, the sintering temperature and time. The microstructural development and alloy homogenisation are determined by the chemical composition of the Fe-based powder and the chemical reactions taking place between the basic powder and the master alloy particles during high temperature sintering. The use of this master alloy is shown to lead to stainless steels with outstanding combinations of strength and ductility. The influence of alloying and the sintering conditions on the final microstructure, density, corrosion resistance and tensile properties is also discussed.

Info:

Periodical:

Materials Science Forum (Volumes 534-536)

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim

Pages:

661-664

Citation:

C. Tojal et al., "Development of PM Stainless Steels with Improved Properties through Liquid Phase Sintering ", Materials Science Forum, Vols. 534-536, pp. 661-664, 2007

Online since:

January 2007

Export:

Price:

$38.00

[1] M. C. Baran, A. E. Segall, B. A. Shaw, H. M. Kopech, T. E. Haberberger, Procs. of Adv. in Powder Met. and Particulate Materials, Chicago IL 1997, 37-42.

[2] E. Klar, P. K. Samal, Powder Metal Technologies and applications, (ASM Handbook) 6, 476 (1998).

[3] C. M. Sonsino, R. Zieschang, V. Arnhold, H-H. Sandritter, D. Gonia, Procs. of PM World Congress, Granada 1998, 319-324.

[4] R. M. German, Metallurgical Transactions A 7, 1879 (1976).

[5] H. S. Nayar, B. Wasiczko, Metal Powder Report 45, 611 (1990).

[6] K. T. Kim, Y. C. Jeon, Materials Science and Engineering A 245, 64 (1998).

[7] J. M. Capus, Advanced Materials and Processes 158, 57 (2000).

[8] P. K. Samal, Key Engineering Materials 189-191, 328 (2001).

[9] R. M. German, K. A. D'Angelo, Int. Met. Rev. 29, 249 (1984).

[10] P. E. Zovas, R. M. German, K. S. Hwang, C. J. Li, J. of Metals, 28 (1983).

[11] M. Sarasola, T. Gómez-Acebo, F. Castro, Powder Met., 48, 59 (2005).

[12] K. Koichu, N. Mitsuru, H. Hiroshi, Funtai Oyobi Fummatsu Yakin/J. of the Jpn. Soc. of Powder and Powder Met. 47, 1091 (2000).

[13] K. S. Narasimhan, Materials Chemistry and Physics 67, 56 (2001).

[14] D. S. Madan, The Int. J. of Powder Met. 27, 339 (1991).

[15] P.E. Busy, M. E. Warga, C. Wells, J. of Metals Trans. AIME Nov., 1463 (1953).

[16] B. Hallemans, P. Wollants, J. R. Roos, Z. Metallkunde 85 (10), 676 (1994).

[17] S. K. Jensen, E. Maahn, Procs. of World Cong. on PM, Paris 1994, 2113-2116.

[18] A. Molinari, G. Straffelini, T. Pieczonka, J. Kazior, Int. J. of Powder Met. 34, 21 (1998).

[19] A. Molinari, J. Kazior, F. Marchetti, R. Canteri, I. Cristofolini, A. Tiziani, Powder Met 37, 115 (1994).

DOI: https://doi.org/10.1179/pom.1994.37.2.115

[20] A. Molinari, J. Kazior, G. Straffelini, Mater Charact 34, 271 (1995).

[21] A. Molinari, T. Marcu Puscas, G. Straffelini, Procs. of Metallurgia Italiana (2001).

[22] P. K. Samal, J. B. Terrel, Procs. of Int. Conf. on Powder Met. & Particulate Materials, New York 2000, 17-31.

[23] T. Pieczonka, J. Kazior, A. Tiziani, A. Molinari, J. of Mats. Proc. Technol. 64, 327 (1997).

[24] R. Bollina, R. M. German, Procs. of Euro PM2004, Vienna 2004, 335-342.

[25] C. Schade, J. Schaberl, S. N. Thakur, V. C. Dongre, Procs. of Int. Conf. on Powder Met. & Particulate Mats., Montreal (2005).

[26] C. T. Schade, J. Schaberl, Procs. of Euro PM2004, Vienna 2004, 116-123.

[27] R. M. German, The Int. J. of Powder Met and Powder Technol. 19, 277 (1983).

[28] R. Tardon, R. M. German, Int J Powder Metall 34, 40 (1998).

[29] M. Sarasola, S. Sainz, F. Castro, Procs. of Euro PM2005, Prague 2005, 349-356.

Fetching data from Crossref.
This may take some time to load.