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：WAAM；TIG；ITI；Microstructure；Mechanical properties；2319 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。



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