An ultra-high-strength 12Mn maraging steel realized via nanoscale heterostructure engineering
A 12Mn maraging steel Fe-12Mn-5Co-1Ti-1Mo-1Si, strengthened by the Heusler FeTiSi phase, was designed with nanoscale heterostructures. When aged at 450 °C, fine FeTiSi particles uniformly precipitate within the martensite lath, contributing as the main strengthening phase. At the same time, a nanoscale austenite layer was observed to grow at the lath interface, significantly toughening the martensite lath matrix. With this hierarchical nano-structure, the super-high tensile strength of ∼1700 MPa with good elongation of ∼7 % at break was achieved. Our case uncovers that hierarchical nanoscale heterogeneous microstructure could pave a new path to achieve synergistic improvement of strength and ductility.
National Natural Science Foundation of China;
|WOS Research Area|
Materials Science ; Physics
Materials Science, Multidisciplinary ; Physics, Applied
|WOS Accession No|
|ESI Research Field|
Cited Times [WOS]:1
|Document Type||Journal Article|
|Department||Department of Mechanical and Energy Engineering|
1.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.School of Materials Science and Engineering,Harbin Institute of Technology,Shenzhen,518055,China
3.College of Artificial Intelligence and Big Data for Medical Science,Shandong First Medical University & Shandong Academy of Medical Sciences,Jinan,250117,China
4.College of Materials and Fujian Provincial Key Laboratory of Materials Genome,Xiamen University,Xiamen,361005,China
5.Institute of Materials Genome and Big Data,Harbin Institute of Technology,Shenzhen,518055,China
6.Test Center,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo,315201,China
7.Department of Materials Science and Engineering,City University of Hong Kong,Hong Kong,Hong Kong
8.State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,Shenzhen,518055,China
|First Author Affilication||Department of Mechanical and Energy Engineering|
|First Author's First Affilication||Department of Mechanical and Energy Engineering|
Yang，Mujin,Huang，Chao,Yao，Zhifu,et al. An ultra-high-strength 12Mn maraging steel realized via nanoscale heterostructure engineering[J]. Materials Letters,2023,349.
Yang，Mujin.,Huang，Chao.,Yao，Zhifu.,Yang，Zhijie.,Li，Zhou.,...&Liu，Xingjun.(2023).An ultra-high-strength 12Mn maraging steel realized via nanoscale heterostructure engineering.Materials Letters,349.
Yang，Mujin,et al."An ultra-high-strength 12Mn maraging steel realized via nanoscale heterostructure engineering".Materials Letters 349(2023).
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