Abstract
In the present work, an ultra-low carbon enamel steel was batch annealed at different temperatures, and the effect of the batch annealing temperature on the microstructure and resistance to fish scaling was investigated by optical microscopy, transmission electron microscopy, and a hydrogen permeation test. The results show that the main precipitates in experimental steel are fine TiC and coarse Ti4C2S2 particles. The average sizes of both TiC and Ti4C2S2 increase with increasing the batch annealing temperature. The resistance to fish scaling decreases with increasing the annealing temperature, which is caused by the growth of ferrite grain and the coarsening of the TiC and Ti4C2S2 particles
Highlights
Ultra-low carbon steels were produced to enamel products, such as bathtubs, kitchen utensils, and decorative panels due to their extraordinary deep drawability [1,2]
The resistance to fish scaling of enamel steel is usually evaluated by the hydrogen permeation test, and the hydrogen permeation value (TH value) is an important parameter characterizing the resistance to fish scaling
Microstructure optical micrographs of experimental steel batch annealed at different temperatures are presented inThe
Summary
Ultra-low carbon steels were produced to enamel products, such as bathtubs, kitchen utensils, and decorative panels due to their extraordinary deep drawability [1,2]. It hydrogen was found that low finishing was factors beneficial to affect the occurrence precipitation behavior of titanium precipitates, i.e., chemical composition, finishing temperature, of strain-induced precipitation of TiC [11]. The characteristics of precipitates will influence their binding energy and resistance to fish scaling of ultra-low carbon Ti-bearing enamel steel. It is essential to perform relevant hydrogen storage capacity, so the annealing temperature will affect the resistance to fish scaling of research Ti‐bearing work to promote the is application of ultra-low. Much still unknown about thecarbon effect of batch annealing on microstructure and resistance to fish scaling of ultra‐low carbon Ti‐bearing enamel steel.
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