Sintering of AISI M3:2 High Speed Steel – Part II

Abstract:

Article Preview

Liquid phase sintering of high speed steels seems to be a cheaper processing route in the manufacturing of tool steels if compared to the well-known and expansive hot isostatic pressing high speed steels process. In a previous work a M3:2 high speed steel was vacuum sintered from irregular water atomized powders and had its sintering temperature determined. In this work the same powder was uniaxially cold compacted and vacuum sintered by adding some small quantity of graphite (0.3%C in weight) to prevent porosity and loss of carbon which result from the sintering cycle. The samples from all these experimental procedures were uniaxially cold compacted and vacuum sintered at five different temperatures and had its densities evaluated. The microstructure was evaluated using optical-electronic techniques in order to investigate the best range of sintering temperature. At least five parallel samples were tested to each condition of sintering.

Info:

Periodical:

Materials Science Forum (Volumes 530-531)

Edited by:

Lucio Salgado and Francisco Ambrozio Filho

Pages:

358-363

Citation:

O. O. Araujo Filho et al., "Sintering of AISI M3:2 High Speed Steel – Part II", Materials Science Forum, Vols. 530-531, pp. 358-363, 2006

Online since:

November 2006

Export:

Price:

$38.00

[1] J. D. Bolton and H. O. Baah, Powder Metall., 34 (1991), p.273.

[2] J. D. Bolton and A. J. Gant, Powder Metall., 40 (1997), p.143.

[3] B. Sustarsic, L. Kosec, S. Dolinsek and B. Podgornik, Journal of Materials Processing Technology 143-144 (2003), p.98.

DOI: https://doi.org/10.1016/s0924-0136(03)00328-5

[4] M. M. Oliveira and J. D. Bolton, The International Journal of Powder Metallurgy, 32 (1996), p.37.

[5] M. M. Oliveira and J. D. Bolton, Powder Metall., 38 (1995) p.131.

[6] J. D. Bolton and A. J. Gant, Powder Metall., 39 (1996), p.27.

[7] J. D. Bolton, A. J. Gant and R. J. M. Hague, Journal of Materials Science, 26 (1991), p.5203.

[8] Araujo Filho O. O. et al, Proceedings of The Fourth International Latin-American Conference On Powder Technology - PTECH 2003, (2003), p.96.

[9] ASTM standard A600-92a Standard Specification for Tool Steel High Speed, ASTM (1999).

[10] C. S. Wright and B. Ögel, Powder Metall., 36 (1993), p.213.

[11] O. O. Araujo Filho, F. Ambrozio Filho, M. D. M. Neves, O. C. S. Ribeiro and C. H. Lopes da Silva, Materials Research, 8 (2005), p.173.