0-iron sentence example

  • The suddenly cooled metal is hard and brittle, because the cold 0-iron which it contains is hard and brittle.
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  • The degree of hardening which the steel undergoes increases with its carbon-content, chiefly because, during sudden cooling, the presence of carbon acts like a brake to impede the transformations, and thus to increase the quantity of 0-iron caught in transit, but probably also in part because the hardness of this 0-iron increases with its carbon-content.
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  • The Tempering and Annealing of Steel.-But this sudden cooling goes too far, preserving so much 0-iron as to make the steel too brittle for most purposes.
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