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Densification Mechanism of Warm Compaction for Iron-Based Powder Materials

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Abstract:

An apparatus measuring changes of various forces directly and continuously was developed by a way of direct touch between powders and transmitting force component, which can be used to study forces state of powders during warm compaction. Using the apparatus, warm compaction processes of iron-based powder materials containing different lubricants at different temperatures were studied. Results show that densification of the powder materials can be divided into four stages, in which powder movement changes from robustness to weakness, while its degree of plastic deformation changes from weakness to robustness. The proposed densification mechanism may provide an insight into understanding of warm compaction process.

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Periodical:

Materials Science Forum (Volumes 534-536)

Pages:

261-264

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.534-536.261

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Online since:

January 2007

Authors:

Sheng Guan Qu, Yuan Yuan Li, Wei Xia, Wei Ping Chen

Keywords:

Densification Mechanism, Iron Based Materials, Powder Metallurgy (PM), Warm Compaction

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] G.F. Bocchini: Powder Metallurgy Vol. 42(2) (1999), p.171.

Google Scholar

[2] J. Capus, S. Pickering and A. Weaver: Metal Powder Report Vol. 49(7/8) (1994), p.22.

Google Scholar

[3] M. Gagné: Advances in Powder Metallurgy and Particulate Materials Vol. 1(3) (1997), p.19.

Google Scholar

[4] Y.Y. Li, T.L. Ngai, D.T. Zhang, et al: J. Mater. Process. Tech. Vol. 129(1-3) (2002), p.354.

Google Scholar

[5] Y.Y. Li, T.L. Ngai, Z.Y. Xiao, et al: J. Cent. South. Univ. T. Vol. 9(3) (2002), p.154.

Google Scholar

[6] S.H. Cao, J.H. Yi, L.H. Zhang, et al: J. Cent. South. Univ. T. Vol. 3(1) (2000), p.4.

Google Scholar