Results 51 to 60 of about 22,155 (273)

Influence of central ventilation on the formation of narrow gap TIG welds

Hanjie xuebao
In response to the problem of poor side wall fusion of narrow gap tungsten inert gas(TIG) , this article adopts the method of tungsten electrode center ventilation to expand the welding arc and transfer the arc heat to the groove side wall to ensure ...
Wanghui XU, Xinghua JIA, Rongze ZHAO, Chen YU, Chunfu GUO, Chen YANG   +5 more
doaj   +1 more source

Solidification of Tungsten Inert Gas–Welded Austenitic Stainless Steel with 0.17 wt% N

steel research international, Volume 96, Issue 5, May 2025.
The classical Scheil model with fast diffusion of nitrogen is used to describe the solidification of the weld seam from austenitic CrMnNi–N steel. The microsegregation of the elements Ni, Cr, Mn, Mo, and N is calculated and compared with experimental findings. Further, the correlation between secondary dendrite arm spacing and cooling rate is made.
Caroline Quitzke, Michael Hauser, Lutz Krüger, Olena Volkova, Marco Wendler   +4 more
wiley   +1 more source

The effect of tungsten carbide particles content in a weld deposit on its abrasion resistance

Tehnički Vjesnik, 2017
This paper describes the study of a weld deposit which contains tungsten carbide particles. For testing the process of gas metal arc welding in a protective atmosphere of a mixed gas with two types of cored wires were used.
Ivo Hlavatý, Jindřich Kozák, Lucie Krejčí, Ivan Samardžić, Jari Tuominen   +4 more
doaj   +1 more source

Influence of Specific Ball‐Milling Energy on Mechanical and Corrosion Properties of Zn–0.2 Graphene Nanoplatelet Composites

Advanced Engineering Materials, Volume 27, Issue 7, April 2025.
In this study, the effect of specific ball‐milling energy (SBME) on the mechanical and corrosion properties of graphene nanoplatelets (GNPs) Zn matrix composites is presented. GNPs are uniformly dispersed in the Zn powder mixtures at the optimal SBME of 32.82 kJ g−1.
Humayun Kabir, Khurram Munir, Cuie Wen, Yuncang Li   +3 more
wiley   +1 more source

Microstructural and Mechanical Characterization of Dissimilar Metal Welding of Inconel 625 and AISI 316L

Metals, 2018
This study investigated the microstructure of the dissimilar metal welding of Inconel 625 and AISI 316L using Continuous Current Gas Tungsten Arc Welding (CCGTAW) and Pulsed Current Gas Tungsten Arc Welding (PCGTAW) processes with ERNiCr-3, TIG 316L and ...
Fatih Dokme, Mustafa Kemal Kulekci, Ugur Esme   +2 more
doaj   +1 more source

Grain size distribution after similar and dissimilar gas tungsten arc welding of a ferritic stainless steel [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2015
In this study, gas tungsten arc welding of ferritic stainless steel and grain size distribution in heat affected zone of the welded samples were investigated. Both similar and dissimilar arc welding operations were considered where in dissimilar
Ranjbarnodeh E., Serajzadeh S., Kokabi A.H., Fischer A.   +3 more
doaj   +1 more source

Cooling of Duplex Stainless‐Steel Bars With Different Water and Air Impinging Jet Flow Rates

Engineering Reports, Volume 7, Issue 4, April 2025.
This study investigates the cooling behavior of super duplex stainless steel bars using water and air impinging jet quenching technique (IJQT) of various flow rates. The findings highlight the critical role of cooling rate in controlling sigma‐phase formation and impact toughness, demonstrating the effectiveness of the IJQT in industrial applications ...
Pavel Romanov, Getiye Gebeyaw, Arvid Jahedi, Rasmus Kristensen, Bahram Moshfegh, Viktor Norman, Ru Lin Peng, Mattias Calmunger   +7 more
wiley   +1 more source

Thermal and structural modelling of arc welding processes: A literature review

Measurement + Control, 2019
This paper presents a state-of-the-art critical review of the thermal and structural modelling of the arc welding process. During the welding process, high temperature in the welding zone leads to generation of unwanted residual stresses and results in ...
Hitesh Arora, Rupinder Singh, Gurinder Singh Brar   +2 more
doaj   +1 more source

Comparative Fatigue Analysis of Structural Steels Considering Welding and Surface Effects

Strain, Volume 61, Issue 2, April 2025.
ABSTRACT There are limited data on the very high‐cycle fatigue for structural steel welds for over 10 million cycles. The purpose of this research is a fatigue performance comparison of the welds made of steels S355JR+AR and S275JR+AR. The goal of reaching the gigacycle fatigue domain is achieved using the ultrasonic fatigue testing at 20 kHz.
Yevgen Gorash, Tugrul Comlekci, Carl Walker, Athanasios Toumpis, James Kelly, Andrew England, Lewis Milne   +6 more
wiley   +1 more source

Electrohydraulic effect of microsecond pulsed discharge in transformer oils

High Voltage, Volume 10, Issue 1, Page 137-145, February 2025.
Abstract The physical process of microsecond pulsed discharge in transformer oil is the foundation for studying the initial mechanics of faults in ultra‐high voltage transformers. However, the microsecond‐scale electrohydraulic effect in transformer oil has not been investigated yet.
Hang Wang, Cheng Zhang, Zhuofei Wang, Shuai Zhang, Kaihang Guo, Tao Shao   +5 more
wiley   +1 more source