[PDF] CARACTERIZAÇÃO DAS PROPRIEDADES TECNOLÓGICAS DO AÇO BH180 E BH220 ... - [ Translate this page ]File Format: PDF/Adobe Acrobat - View as HTML
steel (BH180 and BH220) through data insertion inside of deep drawing process, that ... e resistência à deformação após o cozimento (cura da pntura).(3) ... de encruamento. Quanto maior o grau de encruamento, maior o grau de ..... o desenvolvimento do processo apresentando ruptura no material, ou seja, o ...
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http://en.wikipedia.org/wiki/Work_hardening
Work hardening, strain hardening, or cold work is the strengthening of a material by, macroscopically speaking, plastic deformation (which has the nano-scopic effect of increasing the material's dislocation density). As the material becomes increasingly saturated with new dislocations, more dislocations are prevented from nucleating (a resistance to dislocation-formation develops). This resistance to dislocation-formation manifests itself as a resistance to plastic deformation; hence, the observed strengthening

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