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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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Hot Work Tool Steel Processed by Laser Powder Bed Fusion: A Review on Most Relevant Influencing Factors
Liang Wu,Suvajeet Das,Witalij Gridin,Stefan Leuders,Moritz Kahlert,M. Vollmer,Thomas Niendorf +6 more
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In-situ deposition of three-dimensional graphene on selective laser melted copper scaffolds for high performance applications
Kaka Cheng,Wei Xiong,Yan Li,Liang Hao,Chunze Yan,Zhaoqing Li,Zhufeng Liu,Yushen Wang,Khamis Essa,Li Lee,Xin Gong,Ton Peijs +11 more
TL;DR: In this paper, a bottom-up strategy that leverages the selective laser melting (SLM) technique to manufacture a three-dimensional (3D) porous copper template was creatively proposed, and Graphene was then in-situ grown via chemical vapor deposition on the obtained porous Cu template, forming 3DG composites.
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Surface hardening of metallic alloys by electrospark deposition followed by plasma nitriding
TL;DR: In this article, the results of a study concerned with the surface hardening of nonferrous and ferrous alloys, by integrating the electrospark deposition and plasma nitriding processes, were presented.
Second Pulse Current in Resistance Spot Welded TRIP Steel — Effects on the Microstructure and Mechanical Behavior The second pulse current improved mechanical properties when the fusion zone microstructure consisted of a recrystallized structure of martensite
TL;DR: In this paper, a second pulse current postweld heat treatment was applied to resistence spot welds (RSW) in transformation-induced plasticity (TRIP) steel sheets, and optical and scanning electron microscopy, microhardness, and standardized quasi-static lap-shear tensile testing was investigated for all the pulse current conditions.
Fusion weld metal solidification:Continuum from weld interface to centerline
TL;DR: In this paper, the authors present a review of the development of solidification in the 20th century, focusing on the following: 1.2 Descriptive classification vs. "Cases" 28 1.3 Growth modes 28 2.1 Equilibrium solidification; Case 1 29 2.3 Scheil during WWII 30 2.4 Bell Laboratories; Burton, Primm & Slichter, Pfann's Cases 31 2.5 University of Toronto;-1950 32 2.6 MIT; Flemings and Mullins & Sekerka 35 2.7 R