Experiments have been conducted to study the nucleation of bainite at interfaces between ceramic compounds of Ti and low- alloy steel. To facilitate this, chemically pure compounds of Ti were pressure-bonded to steel samples. The resulting composite samples were then heat-treated to induce transformation and, hence, to compare transformation behavior in the vicinity of the ceramic/steel interface to that within the bulk of the steel. It is found that a variety of Ti oxides are effective in stimulating the nucleation of bainite, whereas TiN is not. The results are interpreted in terms of the crystal structure and chemistry of the Ti compounds.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1994, Vol.25, No.8, pp.1603-1611
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