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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
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Microstructural analysis of fracture in heat-affected zone of two ×70 pipeline steel weldments
TL;DR: In this article, different crack propagation behaviours (ductile fracture and brittle cleavage fracture) were observed in two ×70 pipeline steel weldments (13.4 and 17.8mm-thick) during sing...
DissertationDOI
Plasma-material interaction and electrode degradation in high voltage ignition discharges
TL;DR: In this paper, different aspects of the complex interaction between the plasma of the ignition discharge and the electrode are investigated based on experimental observations and simulations, and the discharge mode behavior is quantitatively analyzed with regard to the arc and glow phase fractions for different electrode materials and conditions of pressure and gas.
Effect of welding parameters of plasma transferred arc welding method on abrasive wear resistance of 12V tool steel deposit
TL;DR: In this article, the location of the plasma arc in relation with the molten pool during perpendicular movement and the shape of the arc had strong effects on both the dilution control and the microstructure of the 12V tool steel deposit.
Journal ArticleDOI
Solute convection effects on a bubble entrapped as a pore during unidirectional upward solidification
TL;DR: In this paper, a transport model is proposed to predict entrapment of a bubble during unidirectional upward solidification, which shows that strong convection deflects the pore growth toward the downstream direction.
Journal ArticleDOI
Study of solidification behaviour and mechanical properties of arc stud welded AISI 316L stainless steel
TL;DR: In this paper, the impact of welding current and time on the microstructure and mechanical properties of AISI 316L stud/plate joint was investigated using optical microscope and scanning electron microscope (SEM).
References
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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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.