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Welding Metallurgy of
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The article was published on 1987-01-01 and is currently open access. It has received 991 citations till now. The article focuses on the topics: Welding.read more
Citations
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A review on selective laser sintering/melting (SLS/SLM) of aluminium alloy powders: Processing, microstructure, and properties
TL;DR: In this article, the state of the art in selective laser sintering/melting (SLS/SLM) processing of aluminium powders is reviewed from different perspectives, including powder metallurgy (P/M), pulsed electric current (PECS), and laser welding of aluminium alloys.
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Dislocation network in additive manufactured steel breaks strength–ductility trade-off
Leifeng Liu,Qingqing Ding,Yuan Zhong,Ji Zou,Jing Wu,Yu-Lung Chiu,Jixue Li,Ze Zhang,Qian Yu,Zhijian Shen +9 more
TL;DR: In this article, the authors show that the pre-existing dislocation network, which maintains its configuration during the entire plastic deformation, is an ideal modulator that is able to slow down but not entirely block the dislocation motion.
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Critical review of automotive steels spot welding: process, structure and properties
TL;DR: In this article, the fundamental understanding of structure-properties relationship in automotive steels resistance spot welds is discussed. And a brief review of friction stir spot welding, as an alternative to RSW, is also included.
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Revisiting fundamental welding concepts to improve additive manufacturing: From theory to practice
TL;DR: In this article, a unified equation to compute the energy density is proposed to compare works performed with distinct equipment and experimental conditions, covering the major process parameters: power, travel speed, heat source dimension, hatch distance, deposited layer thickness and material grain size.
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Using deep neural network with small dataset to predict material defects
TL;DR: This study attempted to predict solidification defects by DNN regression with a small dataset that contains 487 data points and found that a pre-trained and fine-tuned DNN shows better generalization performance over shallow neural network, support vector machine, and DNN trained by conventional methods.
References
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Weldability of high strength aluminium alloys
TL;DR: In this paper, the weldability of high strength aluminium alloys, principally the 7xxx series, is discussed in addition to consideration of joint types, weld defects and recommendations for minimizing or preventing weld defects.
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Assessment of gas tungsten arc welding thermal cycles on Inconel 718 alloy
Maribel Rojo Hernández,R.R. Ambriz,R. Cortés,R. Cortés,C.M. Gómora,Gabriel Plascencia,D. Jaramillo +6 more
TL;DR: In this article, a finite element method was used to determine weld thermal cycles and isothermal sections obtained from the application of a gas tungsten arc welding beads on Inconel 718 plates.
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In-Situ Monitoring for Defect Identification in Nickel Alloy Complex Geometries Fabricated by L-PBF Additive Manufacturing
J. Logan McNeil,Kevin Sisco,Curt Frederick,Michael Massey,Keith Carver,Fred List,Caian Qiu,Morgan Mader,Suresh Sundarraj,S. Suresh Babu +9 more
TL;DR: In this paper, the ability to detect spatial distributions of defects is explored using in-situ monitoring of thermal signatures and surfaces and the observed thermal signatures were also verified with an analytical model for layer-wise heat transfer simulation that is sensitive to laser raster scan strategies.
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Development of Activated Flux, Optimization of Welding Parameters and Characterization of Weld Joint for DMR-249A Shipbuilding Steel
TL;DR: In this article, the authors developed activated flux for joining of DMR-249A steel using activated tungsten inert gas (A-TIG) welding process and characterized the fabricated weld joint.
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Improvement of mechanical properties of aluminium–copper alloy (AA2219) GTA welds by Sc addition
TL;DR: In this article, an attempt was made experimentally to use different gas tungsten arc welding (GTAW) techniques and modify the filler chemistry with addition of scandium (Sc) and zirconium (Zr) in order to improve the mechanical properties of the AA2219 weld joints.