Abstract
It is well known that sintered iron structural parts, especially in the low- and medium-density range (i.e., approx. 6.4–6.8 g/cc), often behave trickily during gas- or pack-carburizing treatment. This is mainly due to the fact that the carburizing gases, via interconnected pores, can easily penetrate the sintered parts to a greater depth. If the density of sintered iron parts is less than ~7.0 g/cc, the carburizing action is usually so fast that it becomes difficult to control case depth and to prevent carburization of the core. This can be especially inconvenient if larger charges are involved, or if a charge contains parts of varying size or density. Then, because time is too short to achieve an even temperature distribution throughout the whole charge, someparts may become through-carburized before others have developed a thin carburized case.
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© 1968 Springer Science+Business Media Dordrecht
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Bockstiegel, G. (1968). The Effect of Minor Additions of Sulfur on Pore Closure and Case-Hardenability of Sintered Iron. In: Iron Powder Metallurgy. Perspectives in Powder Metallurgy. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-6467-0_13
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DOI: https://doi.org/10.1007/978-1-4899-6467-0_13
Publisher Name: Springer, Boston, MA
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