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Corrosion during incineration of a sulphur and chlorine bearing mixture of rubbers and plastics
Author(s) -
Knights C. F.,
Cavell I. W.,
Phillips B. A.
Publication year - 1989
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19890400310
Subject(s) - materials science , metallurgy , chlorine , incineration , corrosion , aluminium , titanium , sulfur , waste management , engineering
Exposures of materials to conditions arising from the incineration of sulphur and chlorine bearing rubbers and plastics for up to 556 days have shown a clear ranking of resistant materials. At material temperatures of 1000°C, with daily cycling to room temperature, only ceramics, notably alumina and silicon carbide, had adequate resistance. At 900°C, with daily temperature cycling to room temperature, the most resistant alloys were the nickel‐based superalloys containing 16–19% Cr, and 2.9–3.4% of each of aluminium and titanium. These alloys were the most resistant under low and high air flow rates during incineration and to air/HCl mixtures. Somewhat less resistant were the cobalt −26% Cr alloys not containing iron. Sulphur attack was not prominent for these resistant alloys but was very apparent for the less resistant nickel alloys. Particularly aggressive components of the rubbers and plastics were the chloride levels and brass and lead contamination. A wide range of coatings were shown to be ineffective.