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strain hardening

American  

noun

  1. work-hardening.

strain hardening British  

noun

  1. a process in which a metal is permanently deformed in order to increase its resistance to further deformation

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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.