Abstract
Transient liquid phase sintering was examined for Fe-Ti powder mixtures. The experimental plan included the effects of several processing variables, such as green density, particle size, composition, heating rate, sintering temperature, and sintering time. During heating, pores form at the Ti particle sites. At the first eutectic temperature (1085 °C), liquid spreading is inhibited by a surrounding intermetallic envelope, leading to swelling. At the second eutectic temperature (1289 °C), the liquid penetrates along the iron grain boundaries and provides densification. The amount of densification depends on the amount of liquid formed at the second eutectic temperature and its duration as determined by the titanium content and heating rate.
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Formerly Research Assistant at Rensselaer Polytechnic Institute.
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German, R.M., Dunlap, J.W. Processing of iron-titanium powder mixtures by transient liquid phase sintering. Metall Trans A 17, 205–213 (1986). https://doi.org/10.1007/BF02643896
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DOI: https://doi.org/10.1007/BF02643896