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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.
Journal ArticleDOI
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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The effect of atmosphere on the composition of wire arc additive manufactured metal components
John W. Elmer,Gordon Gibbs +1 more
TL;DR: In this paper, the effects of atmospheric contamination on wire arc additively manufactured (WAAM) components were studied by producing AM multilayer parts under controlled conditions. Gas impurity levels were investigated.
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Reduction of the hot cracking susceptibility of laser beam welds in AlMgSi alloys by increasing the number of grain boundaries
Christian Hagenlocher,Christian Hagenlocher,Daniel Weller,Daniel Weller,Rudolf Weber,Rudolf Weber,Thomas Graf,Thomas Graf +7 more
TL;DR: In this article, the grain structure of laser welded AlMgSi-alloys was varied by adapting the welding parameters and alloying additives, and the hot cracking susceptibility was determined by the critical strain rate, m...
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Comparative study on microstructure and corrosion performance of 316 stainless steel prepared by laser melting deposition with ring-shaped beam and Gaussian beam
TL;DR: In this article, hollow-laser beam melting deposition with internal powder feeding (HLB-MD-IPF) and regular Gaussian beam were compared to explore the effect of laser beam shape on the quality of coatings.
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CO2 and Nd–YAG laser beam welding of 5754–O aluminium alloy for automotive applications
S. Ramasamy,C.E. Albright +1 more
TL;DR: In this paper, the authors developed welding procedures for autogenous CO2 and Nd-YAG (continuous mode) laser beam welding of 5754-O aluminium alloy and evaluated the mechanical and microstructural characteristics of the welded joints using tensile tests, microhardness tests, optical microscopy, and chemical analysis.
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Improved Penetration with the Use of Oxide Fluxes in Activated TIG Welding of Low Activation Ferritic/Martensitic Steel
Jay J. Vora,Vishvesh J. Badheka +1 more
TL;DR: In this article, the effects of single component oxide fluxes in the TIG process on surface appearance, weld morphology, microstructures and micro-hardness during welding of 6mm thick low activation ferritic/martensitic (LAFM) steel were investigated.