It has been pointed out that Fe3C tends to dissociate upon heating more easily than most other alloy carbides. Also, the diffusion rate of the interstitial solute, carbon, is much faster than substitutional solutes, for example, sulfur in the case of titanium sulfide inclusion. Do you expect a plain carbon eutectoid steel containing fine Fe3C particles to be susceptible to constitutional liquation when heated to the eutectic temperature under normal heating rates during welding (say less than 500C/s)? Why or why not?