Effect of heat conduction mode on microstructure and properties of 800 MPa class marine high strength steel fabricated by wire arc additive manufacturing

被引：0

作者：

Zheng W. ^{[1
,3
]}

Li Z. ^{[1
]}

Wang X. ^{[2
]}

Gong X. ^{[2
]}

Yan D. ^{[3
]}

Lai S. ^{[3
]}

Yang J. ^{[1
]}

机构：

[1] School of Mechanical Engineering, Zhejiang University of Technology, Hangzhou

[2] Luoyang Ship Material Research Institute, Luoyang

[3] Guangdong Provincial Key Laboratory of Advanced Welding Technology for Ships, CSSC Huangpu Wenchong Shipbuilding Company Limited, Guangzhou

来源：

Hanjie Xuebao/Transactions of the China Welding Institution | 2024年 / 45卷 / 05期

关键词：

marine high strength steel; mechanical property; microstructure characteristic; wire arc additive manufacturing;

D O I：

10.12073/j.hjxb.20230605004

中图分类号：

学科分类号：

摘要：

In order to study the effect of heat conduction mode on the microstructure and properties of 800 MPa class marine high strength steel additive components, 800 MPa class marine high strength steel components were deposited by wire arc additive manufacturing (WAAM) technology under different processes, and microstructure characterization and mechanical properties testing of components were carried out. When deposited along the height direction, the bottom microstructure of the component is mainly acicular ferrite and martensite, the middle and top microstructures are massive and acicular ferrite + granular bainite. The yield strengths in the horizontal and vertical directions are 708 MPa and 652 MPa, the tensile strength are 895 MPa and 831 MPa, and the impact absorbed energy at −60 ℃ is 66 J and 86 J, respectively. When deposited along the transverse direction, the microstructure of the component is fine acicular ferrite and lath martensite, the yield strength and tensile strength reach 929 MPa and 1020 MPa respectively, and the impact absorbed energy at −60 ℃ is 92 J. The results indicate that the mechanical properties of the 800 MPa class marine high strength steel WAAM component are highly sensitive to the heat conduction mode, and optimizing heat conduction process can significantly improve its comprehensive mechanical properties. Highlights: (1) The manufacture of 800 MPa class marine high strength steel structure with good comprehensive mechanical properties is realized by using wire arc additive manufacturing technology. (2) The effect of heat conduction mode on microstructure and mechanical properties of 800 MPa marine high strength steel in additive manufacturing process was revealed. © 2024 Harbin Research Institute of Welding. All rights reserved.

引用

页码：38 / 46

页数：8

共 21 条

[1] Hao Wenkui, Liu Zhiyong, Wang Xianzong, Et al., Present situation and prospect of studies on high strength steel and corrosion resistance in naval ship and submarine, Equipment Environmental Engineering, 11, 1, pp. 54-62, (2014)
[2] Layus P, Kah P, Khlusova E, Et al., Study of the sensitivity of high-strength cold-resistant shipbuilding steels to thermal cycle of arc welding, International Journal of Mechanical and Materials Engineering, 13, 1, pp. 1-9, (2018)
[3] Wang Shun, Li Chenxiao, Wang Ji, Et al., Numerical calculation of line heating forming of marine high strength steel bending plate considering deflection, Shipbuilding of China, 62, 4, pp. 230-243, (2021)
[4] Shao Jun, Present status on researching shipbuilding steel and its development, Angang Technology, 4, pp. 1-4, (2013)
[5] Lei Bing, Hu Shengnan, Lu Yunfei, Et al., Galvanic corrosion behavior and electric insulation between B10 and a high strength steel in seawater environment for warship, Corrosion & Protection, 40, 7, pp. 497-501, (2019)
[6] Greer C, Nycz A, Noakes M, Et al., Introduction to the design rules for metal big area additive manufacturing[J], Additive Manufacturing, 27, pp. 159-166, (2019)
[7] Buchanan C, Gardner L., Metal 3D printing in construction: A review of methods, research, applications, opportunities and challenges, Engineering Structures, 180, pp. 332-348, (2019)
[8] Ding Donghong, Shen Chen, Pan Zengxi, Et al., Towards an automated robotic arc-welding-based additive manufacturing system from CAD to finished part[J], Computer-Aided Design, 73, pp. 66-75, (2016)
[9] Xueping Song, Huang Jiankang, Ding Fan, Review of functionally graded materials processed by additive manufacturing[J], China Welding, 32, 3, pp. 41-50, (2023)
[10] Guo Chun, Ma Mingliang, Hu Ruizhang, Et al., Microstructure and properties of 10CrNi<sub>3</sub>MoV high strength steel for naval ship made by wire and arc additive manufacturing, Materials Reports, 33, S2, pp. 455-459, (2019)

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