Laminated Fe-34.5 Mn-0.04C composite with high strength and ductility

• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2018,（10）
• 页码范围: 1939-1943
• 页数: 5页
• 语种: 英文

摘要

To obtain a good combination of strength and ductility,a laminated composite structure composed of recovered hard lamellae and soft recrystallized lamellae has been produced in a single phase austenitic Fe34.5 Mn-0.04C steel by cold rolling and partial recrystallization.Enhanced mechanical properties in both strength and ductility have been obtained in the composite structure compared to a fully recrystallized coarse grain structure.A further increase in strength with only minor loss in total elongation has been achieved by a slight cold rolling of the composite structure,which also removes the small yield drop and Lüders elongation observed in the composite structure.