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An Experimental Evaluation of the Gerdemann–Jablonski Compaction Equation

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Abstract

This paper reports on an attempt to independently evaluate the validity and applicability of a new compaction equation recently presented by Gerdemann and Jablonski [Metallurgical and Materials Transactions A, 42 (2011) 1325–1333] using experimental data. Furthermore, the rationality of Gerdemann and Jablonski’s interpretation of the equation parameters is examined. The results are discussed in terms of the comparative evaluation of four different titanium powders (sponge Ti, CP TiH2, Grade 2 CP Ti, and TiH2-SS316L nanocomposite blend prepared by high energy milling) cold pressed in die to compaction pressures of up to 1300 MPa.

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Acknowledgments

We are grateful to Thembinkosi Shabalala—for his contribution during the preparation of the mechanically blended powder—and to Jeff Benson—for his comments on the early versions of this paper. The contributions of Chris Machio and Silethelwe Chikosha especially are gratefully recognized. This research has been financially supported by the Department of Science and Technology through the Titanium Centre of Competence research program and the Council for Scientific and Industrial Research.

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Authors and Affiliations

  1. Titanium Centre of Competence, Council for Scientific and Industrial Research, P.O. Box 395, Pretoria, 0001, South Africa

    Ronald Machaka (Senior Researcher) & Hilda K. Chikwanda (Researcher Group Leader)

  2. Light Metals, Materials Science and Manufacturing, Council for Scientific and Industrial Research, Office F7, Building 14F, P.O. Box 395, Pretoria, 0001, South Africa

    Ronald Machaka (Senior Researcher) & Hilda K. Chikwanda (Researcher Group Leader)

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  1. Ronald Machaka
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Correspondence to Ronald Machaka.

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Manuscript submitted September 2, 2014.

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Machaka, R., Chikwanda, H.K. An Experimental Evaluation of the Gerdemann–Jablonski Compaction Equation. Metall Mater Trans A 46, 2194–2200 (2015). https://doi.org/10.1007/s11661-015-2793-8

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