Effect of microstructures tuning on mechanical properties of an ultra-high strength marine steel via the TRIP effect

Li, Junbo1,2; Zhao, Tan1,2; Wang, Ting1,2; Wang, Hua1,2; Li, Wenbin1,2; Li, Wenzhu1,2; Jin, Yaohui1,2; Li, Jiaan1,2; An, Fengchao3

2023-12-01

10.1557/s43578-023-01247-8

JOURNAL OF MATERIALS RESEARCH   影响因子和分区

0884-2914

2044-5326

In this study, we investigated the impact of microstructures tuning on the mechanical properties of marine steel, focusing on the role of retained austenite (RA) in achieving superior strength-plasticity synergy through the TRIP effect. Our findings reveal that the experimental steel subjected to the two-step bainite treatment exhibits superior comprehensive mechanical properties, which is attributed to the generation of a large amount of film-like RA and small-sized blocky RA by appropriately sacrificing the grain size of the bainite laths. This particular configuration leads to an outstanding combination of strength and plasticity, including a yield strength of 1050 MPa, an ultimate tensile strength of 1350 MPa, and an elongation of 18.5%. These results highlight the importance of microstructure engineering in enhancing advanced high strength steel for marine applications.

Marine steel Retained austenite Microstructures Mechanical properties Transmission Kikuchi diffraction

SCI ; EI

英语

其他

China Postdoctoral Science Foundation[2022M721454] ; null[2022-BS-359]

Materials Science

Materials Science, Multidisciplinary

WOS:001114660000002

SPRINGER HEIDELBERG

MATERIALS SCIENCE

2-s2.0-85178881178

Web of Science

1.State Key Lab Met Mat Marine Equipment & Applicat, Anshan 114009, Liaoning, Peoples R China
2.Angang Steel Co Ltd, Anshan 110023, Liaoning, Peoples R China
3.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Guangdong, Peoples R China

Li, Junbo,Zhao, Tan,Wang, Ting,et al. Effect of microstructures tuning on mechanical properties of an ultra-high strength marine steel via the TRIP effect[J]. JOURNAL OF MATERIALS RESEARCH,2023,39(3):521-533.

Li, Junbo.,Zhao, Tan.,Wang, Ting.,Wang, Hua.,Li, Wenbin.,...&An, Fengchao.(2023).Effect of microstructures tuning on mechanical properties of an ultra-high strength marine steel via the TRIP effect.JOURNAL OF MATERIALS RESEARCH,39(3),521-533.

Li, Junbo,et al."Effect of microstructures tuning on mechanical properties of an ultra-high strength marine steel via the TRIP effect".JOURNAL OF MATERIALS RESEARCH 39.3(2023):521-533.