Hot isostatic pressing of sendust metal powders

Sendust metal (Fe/1b9.56wt%Si/1b5.47wt%Al) powders have been isostatically hot pressed and the mechanical properties of sintered bodies with various porosities examined at room temperature. Vickers hardness decreases linearly with increasing porosity. The porosity dependence of bending and compressi...

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Bibliographic Details
Published in:Materials research bulletin 1992-06, Vol.27 (6), p.661-668
Main Authors: Imaida, Y., Takagawa, M., Kirimura, T., Hirota, K., Yamaguchi, O., Kakitsuji, A., Miyamoto, H.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Metals. Metallurgy
Powder metallurgy. Composite materials
Production techniques
Sintered metals and alloys. Pseudo alloys. Cermets
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Summary:Sendust metal (Fe/1b9.56wt%Si/1b5.47wt%Al) powders have been isostatically hot pressed and the mechanical properties of sintered bodies with various porosities examined at room temperature. Vickers hardness decreases linearly with increasing porosity. The porosity dependence of bending and compressive strengths is expressed by the equation σ= σ oexp(− np); σ o=540 MPa for the σ o=2800 MPa for the latter are determined, respectively, whereas the same value of n=0.22 is estimated from both strength-porosity data. Young's modulus is 300 GPa for sintered bodies with nearly theoretical density.
ISSN:0025-5408
1873-4227
DOI:10.1016/0025-5408(92)90072-8