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A novel laminated metal composite with superior interfacial bonding composed of ultrahigh strength maraging steel and 316L stainless steel

《钢铁研究学报:英文版》2020年 第4期 | Le Zhang Wei Wang M.Babar Shahzad Yi-yin Shan Ke Yang   Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 Liaoning China School of Materials Science and Engineering University of Science and Technology of China Hefei 230026 Anhui China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 Liaoning China
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摘 要:A 5-layer laminated metal composite composed of ultrahigh-strength maraging steel and ductile 316L stainless steel was fabricated by hot pressing in vacuum and post-heat treatment.Microstructure characterization on hierarchical structure of the composite before and after heat treatment was made by optical microscopy,scanning electron microscopy and electron back-scattered diffraction technique,respectively.Meanwhile,the difference of mechanical performance on both sides of the interface was characterized by nano-hardness testing.Uniaxial tensile test showed that superior interfacial bonding was achieved due to the micro-‘bite’structure between the two steels without obvious defects or oxides at the interface and with coordinated deformation of the two components.Thus,a laminated metal composite consisting of two different constituents with extreme difference in strength can be well fabricated.
【分 类】【工业技术】 > 金属学与金属工艺 > 金属学与热处理
【关键词】 Maraging steel Austenitic stainless steel Laminated metal composite Hierarchical structure INTERFACIAL
【出 处】 《钢铁研究学报:英文版》2020年 第4期 433-439页 共7页
【收 录】 中文科技期刊数据库