Effect of r-Value and Texture on Plastic Deformation and Necking Behavior in Interstitial-Free Steel Sheets
Effect of r-Value and Texture on Plastic Deformation and Necking Behavior in Interstitial-Free Steel Sheets
- 주제(키워드) tensile test , work hardening , necking , texture , interstitial-free steel
- 발행기관 대한금속·재료학회
- 발행년도 2017
- 총서유형 Journal
- UCI G704-000797.2017.23.1.001
- KCI ID ART002186320
- 본문언어 영어
초록/요약
Three initial tensile specimens having different textures and, in consequence, different r-values were cut from a sheet of an interstitial-free steel. Using these specimens, the effect of r-value and texture on plastic deformation and the necking behavior were studied by tackling the strain state and texture during tensile tests. A reduced decrease in work hardening rate of tensile specimens with higher r-values led to a slower onset of diffuse necking which offers an increased uniform elongation. A slower reduction in thickness of specimens with a higher r-value provided a favorable resistance against onset of failure by localized necking.
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