Anisotropic dynamic compression response of an ultra-high strength steel fabricated by laser hybrid additive manufacturing

Fan, Wei1,2; Wang, Jiali1,2; Peng, Yijie1,2; Tan, Hua1,2; Qi, Yang3; Zhang, Fengying4; He, Binbin5; Wang, Xiangyu6; Lin, Xin1,2

2024-04-25

10.1016/j.addma.2024.104186

ADDITIVE MANUFACTURING   影响因子和分区

2214-8604

2214-7810

Directed energy deposition (DED) is a technological innovation revolutionizing in -situ repair, hybrid manufacturing, and multi -material integration manufacturing, characterized by microstructural heterogeneity on a macro -scale. However, the overall performance of these DED-fabricated components under dynamic loading, particularly along different directions, remains uncharted. This work explores the anisotropic dynamic compression response of an ultra -high strength steel, namely 35CrMnSiA steel, fabricated using DED on a wrought substrate. The laser hybrid additive manufactured samples were subjected to split Hopkinson pressure bar testing along different directions. The results show the following: 1) hybrid manufactured 35CrMnSiA steel has an anisotropic dynamic compression response due to the mismatched properties of each subzone induced by microstructural heterogeneity, 2) low -strength DED part shows higher strain under compression along the build direction but behaves similarly to the wrought material when compressed along the transverse direction, 3) intergranular void/crack is the primary damage mechanism, cracks preferred formed in wrought substrate due to the martensite with poor plastic dissipation ability, 4) when the interface is subjected to parallel directional impact loads, the strain mismatch between the two side subzones leads to interface separation. This study provides comprehensive understanding of the dynamic behavior of DED-fabricated components with heterogenous microstructure, and new insight into demanding tailored strategies to ensure consistent and predictable behavior under various loading conditions.

Anisotropic mechanical property Additive manufacturing Dynamic compression Ultra-high strength steel Microstructural heterogeneity

SCI ; EI

英语

其他

National Key Research and Development Program of China["2022YFB4600300","2022YFB4600301"] ; National Natural Science Foundation of China[52175364] ; ND Basic Research Funds[G2022WD] ; Shenzhen Science and Technology Plan Project[JCYJ20180508151903646] ; Key Research and Develop- ment Program of Shaanxi[2023-YBGY-359] ; Science and Technology Plan of Xi'an City[21ZCZZHXJS-QCY6-0001]

Engineering ; Materials Science

Engineering, Manufacturing ; Materials Science, Multidisciplinary

WOS:001240712500001

ELSEVIER

Web of Science

1.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
2.Northwestern Polytech Univ, Key Lab Met High Performance Addit Mfg & Innovat D, MIIT China, Xian 710072, Peoples R China
3.Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China
4.Changan Univ, Sch Mat Sci & Engn, Xian 710064, Peoples R China
5.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
6.Nanyang Technol Univ, Sch Mech & Aerosp Engn, 50 Nanyang Ave, Singapore 639798, Singapore

Fan, Wei,Wang, Jiali,Peng, Yijie,et al. Anisotropic dynamic compression response of an ultra-high strength steel fabricated by laser hybrid additive manufacturing[J]. ADDITIVE MANUFACTURING,2024,86.

Fan, Wei.,Wang, Jiali.,Peng, Yijie.,Tan, Hua.,Qi, Yang.,...&Lin, Xin.(2024).Anisotropic dynamic compression response of an ultra-high strength steel fabricated by laser hybrid additive manufacturing.ADDITIVE MANUFACTURING,86.

Fan, Wei,et al."Anisotropic dynamic compression response of an ultra-high strength steel fabricated by laser hybrid additive manufacturing".ADDITIVE MANUFACTURING 86(2024).