تقرير
A high-strength heterogeneous structural dual-phase steel
| العنوان: | A high-strength heterogeneous structural dual-phase steel |
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| المؤلفون: | Gao B, Pan ZY, Li JS, 马彦, Cao YY, Liu MP, Lai QQ, Xiao LR, Zhou H |
| المساهمون: | Lai, Qingquan, Xiao, Lirong |
| سنة النشر: | 2019 |
| المجموعة: | IMECH-IR (Institute of Mechanics, Chinese Academy of Sciences) / 中国科学院力学研究所机构知识库 |
| مصطلحات موضوعية: | MARTENSITE VOLUME FRACTION, MECHANICAL-PROPERTIES, AUSTENITE FORMATION, INITIAL MICROSTRUCTURE, HARDENING BEHAVIOR, TENSILE PROPERTIES, FRACTURE-BEHAVIOR, PLASTIC BEHAVIOR, STAINLESS-STEEL, FERRITE, Materials Science, Multidisciplinary, 二类 |
| الوصف: | The strengthening and ductilization of steels are of great importance to weight reduction of vehicles. In this work, the strength-ductility synergy of dual-phase (DP) steels was obtained by properly tailoring the structural heterogeneity, including the distribution and fraction of constituent phases. It was demonstrated that heterogeneous structural DP steels with high volume fraction of martensite (from 64 to 83%) led to a good combination of strength and ductility. Compared with the cold-rolled sheets, the tensile strength and uniform elongation of heterogeneous DP steel increased by 700MPa (from 1.06 to 1.76GPa) and 2.7% (from 1.3 to 4%), respectively. The contributions from back stress and effective stress were analyzed by cyclic loading-unloading experiments. The underlying deformation mechanism was discussed based on the results of mechanical test and microstructure observation. |
| نوع الوثيقة: | report |
| اللغة: | English |
| العلاقة: | JOURNAL OF MATERIALS SCIENCE; http://dspace.imech.ac.cn/handle/311007/79491Test; http://dspace.imech.ac.cn/handle/311007/79492Test |
| DOI: | 10.1007/s10853-019-03785-1 |
| الإتاحة: | https://doi.org/10.1007/s10853-019-03785-1Test http://dspace.imech.ac.cn/handle/311007/79491Test http://dspace.imech.ac.cn/handle/311007/79492Test |
| رقم الانضمام: | edsbas.9CB51C08 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1007/s10853-019-03785-1 |
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