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Effect of interlayer time interval on GTAW based wire arc additive manufacturing of 2319 aluminium alloy
参考中译:中间层时间间隔对2319铝合金GTAW焊丝电弧添加剂制造的影响


          

刊名:SADHANA
作者:ATOSH KUMAR SINHA(Department of Metallurgical and Materials Engineering, National Institute of Technology)
SUSANTA PRAMANIK(Department of Metallurgical and Materials Engineering, National Institute of Technology)
KRISHNA P YAGATI(Department of Metallurgical and Materials Engineering, National Institute of Technology)
刊号:710HA010
ISSN:0256-2499
出版年:2023
年卷期:2023, vol.48, no.3
页码:122-1--122-12
总页数:12
分类号:TB21
关键词:WAAMTIGITIMicrostructureMechanical properties2319 al-alloy
参考中译:WAAM;TIG;ITI;组织;力学性能;2319铝合金
语种:eng
文摘:Multilayer deposits of 2319 aluminum alloy were made using the Tungsten Inert Gas (TIG) welding-based Wire Arc Additive Manufacturing (WAAM) technique. The effect of interlayer time interval (ITI) on deposits' microstructure and mechanical behavior is investigated. The microstructure of the ten-layer (all regions), twenty-layer (top), and forty-layer (top) deposits show that there are grains that are all equiaxed. But the middle and bottom parts of the twenty-and-forty-layered deposits comprised both columnar and equiaxed grains. The strength of the twenty-layer deposits with two- and five-minute interlayer time intervals are 217±5 and 237±5 MPa, respectively. In contrast, the forty-layer deposits recorded strengths of 247±5 and 258±5MPa, respectively. Therefore, the twenty- and forty-layered deposits fabricated at 5 min interlayer time intervals recorded better tensile properties.
参考中译:采用钨极惰性气体保护焊(TIG)焊丝电弧添加剂制造(WAAM)技术制备了2319铝合金多层膜。研究了夹层时间间隔(ITI)对涂层微观结构和力学行为的影响。10层(所有区域)、20层(顶部)和40层(顶部)沉积物的微观结构表明,它们的颗粒都是等轴的。但20层和40层矿床的中部和底部既有柱状又有等轴晶。夹层间隔2分钟和5分钟的20层沉积物的强度分别为217±5和237±5兆帕。相比之下,40层沉积物的强度分别为247±5和258±5 MPa。因此,以5min的层间时间间隔制备的20和40层状沉积物具有更好的拉伸性能。