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作者:

Yu, Zhanliang (Yu, Zhanliang.) | Yuan, Tao (Yuan, Tao.) | Xu, Min (Xu, Min.) | Zhang, Hongda (Zhang, Hongda.) | Jiang, Xiaoqing (Jiang, Xiaoqing.) | Chen, Shujun (Chen, Shujun.)

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EI Scopus SCIE

摘要:

ER5356, ER2319, and Zn welding wires were synchronously fed by a GTAW wire + arc additive manufacturing (WAAM) system, and the microstructure and mechanical properties of the deposited Al-Zn-Mg-Cu aluminum alloy components were investigated. The results showed that the phase composition of WAAM 7050 alloy is mainly composed of alpha-Al, S (Al2CuMg), eta (MgZn2), and theta (CuAl2) phases. The composition of each element is in accordance with the intended design and the specifications of the 7050 aluminum alloy composition. The lower portion of each deposited layer is mainly composed of columnar crystals, and the upper portion exhibits an equiaxed crystal structure. A small number of defects, such as pores and microcracks, were observed in the interlayer. The average hardness of the components was 106 HV; the tensile strength is 241 MPa in the horizontal direction and 160 MPa in the vertical direction. The fractographs exhibited typical brittle fracture characteristics. The reasons for the anisotropy of its mechanical properties were explained in detail.

关键词:

Al-Zn-Mg-Cu Wire plus Arc additive manufacturing In-situ alloy Mechanical properties

作者机构:

  • [ 1 ] [Yu, Zhanliang]Beijing Univ Technol, Minist Educ, Welding Res Inst & Engn, Res Ctr Adv Mfg Technol Automot Components, Beijing 86, Peoples R China
  • [ 2 ] [Yuan, Tao]Beijing Univ Technol, Minist Educ, Welding Res Inst & Engn, Res Ctr Adv Mfg Technol Automot Components, Beijing 86, Peoples R China
  • [ 3 ] [Xu, Min]Beijing Univ Technol, Minist Educ, Welding Res Inst & Engn, Res Ctr Adv Mfg Technol Automot Components, Beijing 86, Peoples R China
  • [ 4 ] [Zhang, Hongda]Beijing Univ Technol, Minist Educ, Welding Res Inst & Engn, Res Ctr Adv Mfg Technol Automot Components, Beijing 86, Peoples R China
  • [ 5 ] [Jiang, Xiaoqing]Beijing Univ Technol, Minist Educ, Welding Res Inst & Engn, Res Ctr Adv Mfg Technol Automot Components, Beijing 86, Peoples R China
  • [ 6 ] [Chen, Shujun]Beijing Univ Technol, Minist Educ, Welding Res Inst & Engn, Res Ctr Adv Mfg Technol Automot Components, Beijing 86, Peoples R China

通讯作者信息:

  • [Yuan, Tao]Beijing Univ Technol, 100 Pingleyuan, Beijing, Peoples R China

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来源 :

JOURNAL OF MANUFACTURING PROCESSES

ISSN: 1526-6125

年份: 2021

卷: 62

页码: 430-439

6 . 2 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:87

JCR分区:2

被引次数:

WoS核心集被引频次: 6

SCOPUS被引频次: 77

ESI高被引论文在榜: 0 展开所有

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