Development of Multilayer Steels for Improved Combinations of High Strength and High Ductility
Development of Multilayer Steels for Improved Combinations of High Strength and High Ductility
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DOI：
10.2320/matertrans.m2013382
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发表时间：
2014-02
影响因子：
1.2
通讯作者：
T. Koseki;J. Inoue;S. Nambu
中科院分区：
文献类型：
--
作者：
T. Koseki;J. Inoue;S. Nambu
已经开发了多层钢，以通过在层结构中独立地使用高强度钢和高延展性钢来提供获得更高性能钢的新途径。本文综述了多层钢的发展、设计、制造、性能和应用的背景。与现有的整体钢相比，多层钢表现出改进的强度和延展性的组合，以及在高应变速率变形下的优异变形行为以及良好的可成形性。根据脆性钢的断裂韧性和延性钢的强度，通过增加层之间的界面韧性和减少脆性钢层的厚度来实现多层钢的这些改进的性能。多层钢的概念通过应用不同的成分组合而扩展，例如Mg-钢多层复合材料。[doi：10.2320/matertrans.M2013382]
Multilayer steels have been developed to provide a novel route to achieving higher-performance steels by employing a high-strength steel and a high-ductility steel independently in the layer structure. In this article, a background to the development, design, fabrication, properties, and applications of multilayer steels are overviewed. Multilayer steels exhibit improved combinations of strength and ductility compared with existing monolithic steels and also excellent deformation behaviors under high-strain-rate deformation as well as good formability. Those improved performances of multilayer steel are achieved by increased interfacial toughness between the layers and decreased thickness of the brittle steel layers according to the fracture toughness of the brittle steel and the strength of the ductile steel. The concept of multilayer steels is extended by applying different combinations of components, such as Mg-steel multilayer composite. [doi:10.2320/matertrans.M2013382]