Experimental investigation on the tensile behavior of wire arc additively manufactured duplex stainless steel plates

被引：37

作者：

Chen, Man-Tai ^{[1
,2
]}

Chen, Yangyu ^{[1
,2
]}

Zuo, Wenkang ^{[1
,2
]}

Yun, Xiang ^{[3
]}

Zhao, Ou ^{[4
]}

Liu, Si-Wei ^{[5
]}

Xu, Fangda ^{[6
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Dept Civil Engn, Shanghai Key Lab Digital Maintenance Buildings & I, Shanghai 200240, Peoples R China

[3] Univ Bristol, Dept Civil Engn, Bristol BS8 1TR, England

[4] Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore, Singapore

[5] Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong 999077, Peoples R China

[6] Rongsu Technol Co Ltd, Taicang, Peoples R China

来源：

ENGINEERING STRUCTURES | 2024年 / 321卷

基金：

中国国家自然科学基金;

关键词：

Duplex stainless steel; Mechanical properties; Metallic 3D printing; Microstructure; Wire arc additive manufacturing (WAAM);

D O I：

10.1016/j.engstruct.2024.118764

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Wire Arc Additive Manufacturing (WAAM) stands as a transformative metallic 3D printing technology that offers unparalleled flexibility and efficiency in the construction industry. This study thoroughly investigates the tensile behavior of WAAM duplex stainless steel plates through an extensive experimental program. Test specimens were 3D printed using cold metal transfer technology with two types of feedstock wires (ER2209 and ER2594). Microstructural analysis was conducted using electron backscatter diffraction (EBSD). Standardized tensile coupon specimens were extracted from WAAM duplex stainless steel plates, featuring five different loading angles (theta = 0 degrees, 30 degrees, 45 degrees, 60 degrees and 90 degrees) relative to the printing layer direction, alongside two surface conditions (milled and unmilled). Geometric characteristics of the unmilled specimens were determined using non-contact 3D laser scanning and a visual graphic-based parametric analysis program. Tensile coupon tests, facilitated by a Digital Image Correlation (DIC) system, provided comprehensive examination of stress-strain responses and key mechanical properties of WAAM duplex stainless steel materials, such as the Young's modulus, material strengths and fracture strain. The effects of microstructure characteristics, geometric conditions and loading angles on the mechanical properties of WAAM duplex stainless steel plates were thoroughly analyzed and discussed.

引用

页数：14

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