Strain Hardening and Strain Rate Sensitivity Behaviors of Advanced High Strength Steels

查看全文 作　　者：F [1]Ozturk;A [1]Polat;S [1]Toros;R C [2]Picu

机构地区：[1]Department of Mechanical Engineering, Nigde University;[2]Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute,Troy 12180, New York, USA

出　　处：《Journal of Iron and Steel Research(International)》索引2013年第20卷第6期,共7页

摘　　要：The mechanical properties of commercial dual phase (DP), transformation induced plasticity (TRIP), and high strength low alloy (HSLA-340) steel sheets are investigated and compared at various strain rates ranging from 0.001 7to 0.17 s-1 at ambient temperature.TRIP steel outperforms the other two materials , having comparable ductility and twice as large strength relative to DP steel.TRIP has larger strength and much larger ductility than HSLA-340.The exceuent ductility of TRIP800is due to its high strain hardening capability , which promotes stable plastic deformation.It is observed that the strain hardening rate in TRIP800does not decrease to zero at failure , as common in most materials in which failure is preceded by necking. 关键词：低合金高强度钢板应变速率敏感应变硬化性行为 TRIP钢相变诱发塑性力学性能延展性

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Strain Hardening and Strain Rate Sensitivity Behaviors of Advanced High Strength Steels

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