Dynamic tensile mechanical properties of 18Ni350 maraging steel fabricated by wire arc additive manufacturing

Mengwei Duan; Guanshun Bai; Shun Guo; Yong Peng; Xuequan Liu; Wei Zhang; Xiaoyong Zhang; Yong Huang; Jizi Liu; Guangfa Gao; Jian Kong; Qi Zhou; Kehong Wang

Journal of Materials Research and Technology (Jul 2023)

Dynamic tensile mechanical properties of 18Ni350 maraging steel fabricated by wire arc additive manufacturing

Mengwei Duan,
Guanshun Bai,
Shun Guo,
Yong Peng,
Xuequan Liu,
Wei Zhang,
Xiaoyong Zhang,
Yong Huang,
Jizi Liu,
Guangfa Gao,
Jian Kong,
Qi Zhou,
Kehong Wang

Affiliations

Mengwei Duan: School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China; Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China; National Key Laboratory of Special Vehicle Design and Manufacturing Integration Technology, Baotou, 014030, China
Guanshun Bai: Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China; The Ningbo Branch of Ordnance Science Institute of China, Zhejiang, 315103, China
Shun Guo: School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China; Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China; National Key Laboratory of Special Vehicle Design and Manufacturing Integration Technology, Baotou, 014030, China
Yong Peng: School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China; Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China; National Key Laboratory of Special Vehicle Design and Manufacturing Integration Technology, Baotou, 014030, China; Corresponding author. School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China.
Xuequan Liu: School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China; Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China
Wei Zhang: School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China; Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China
Xiaoyong Zhang: School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China; Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China; National Key Laboratory of Special Vehicle Design and Manufacturing Integration Technology, Baotou, 014030, China
Yong Huang: School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China; Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China; National Key Laboratory of Special Vehicle Design and Manufacturing Integration Technology, Baotou, 014030, China
Jizi Liu: School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China; Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China; National Key Laboratory of Special Vehicle Design and Manufacturing Integration Technology, Baotou, 014030, China
Guangfa Gao: School of Mechanical Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China
Jian Kong: School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China; Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China; National Key Laboratory of Special Vehicle Design and Manufacturing Integration Technology, Baotou, 014030, China
Qi Zhou: School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China; Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China; National Key Laboratory of Special Vehicle Design and Manufacturing Integration Technology, Baotou, 014030, China; Corresponding author. School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China.
Kehong Wang: School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China; Ministry of Industry and Information Technology Key Laboratory of Controlled Arc Intelligent Additive Technology, Nanjing University of Science and Technology, Jiangsu, 210094, China; National Key Laboratory of Special Vehicle Design and Manufacturing Integration Technology, Baotou, 014030, China; Corresponding author. School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China.

Journal volume & issue: Vol. 25
pp. 5426 – 5442

Abstract

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The dynamic tensile mechanical properties of 18Ni350 maraging steel (M350) fabricated by wire arc additive manufacturing (WAAM) was investigated by the split Hopkinson tensile bar (SHTB) and microstructural analysis. The results show that the yield stress (YS) of M350 samples, both in as-built and heat-treated state, increases firstly and then decreases with increasing strain rate. The YS of the as-built sample reaches the maximum value of 2195 MPa at 1230s−1, and that increases to 3395 MPa after heat treatment, due to the precipitation of intermetallic. Compared with the sample in the horizonal direction, the sample in the vertical direction exhibits a higher dynamic strength, due to the preferred growth of columnar crystal along the vertical direction during WAAM process. Under dynamic load, the retained austenite transformed into martensite and the oxide inclusions are cracked, resulting in a heterogeneous fracture morphology. Based on those results the hardening model and the anisotropic model of the strain rate sensitive material fabricated by WAAM were established. The results can provide a guidance for the reliability evaluation of maraging steel fabricated by WAAM under dynamic load conditions.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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