Results 61 to 70 of about 22,155 (273)
This study investigates the impact of binary gas mixtures in multi‐arc plasma generator using numerical simulations. The addition of hydrogen and nitrogen increases voltage and power, which is consistent with experimental data. The maximum temperature of the cathodes occurred at the edge rather than the tip, and the use of hydrogen in the gas mixture ...
K. Bobzin+7 more
wiley +1 more source
Weldability of high nitrogen steels: A review
High nitrogen steel (HNS) have been widely used in many industrial fields in place of stainless steels. As we know, the welding is the main fabricating method of the HNS structural components. In this article, the recent investigations of joining methods
Wang Xingxing+5 more
doaj +1 more source
Plasma‐flash sintering: Metastable phase stabilization and evidence of ionized species
Abstract The first demonstration of plasma‐flash sintering (PFS) is presented in this work. PFS is performed under a low‐pressure atmosphere that consecutively generates plasma and flash events. It is shown, by using several combined characterization techniques, that PFS stabilizes metastable phases on the surface of the material, which may be ...
Eva Gil‐González+4 more
wiley +1 more source
The present work reveals novel results on the mircrostructure evolution and in particular the structural integrity of gas tungsten arc‐welded joints of directed energy deposition arc and as‐rolled standard duplex stainless steels compared to counterparts of the nonwelded base material as well as similar weldments of as‐rolled sheets.
Thomas Wegener+3 more
wiley +1 more source
Oualid Beziou+4 more
semanticscholar +1 more source
On the Effect of Cooling Parameters on Solidification Structure in NdFeB Alloys
Coupled experimental and numerical approach using a finite element thermal model is implemented to link the experimentally measured structural spacing and the cooling characteristics extracted from the simulated model for three elaboration techniques. The results are summarized in a graph covering a large range of cooling rates and fit within the frame
Aymeric Wolz+4 more
wiley +1 more source
A STUDY EFFECT OF SOME VARIABLES IN TIG SPOT WELDING FOR (ALUMINUM – MAGNESIUM) ALLOY
The present work investigates the effect of some of the variables in spot tungsten inert gas shielded welding (TIG Spot) for (Aluminum-Magnesium) alloy type(5052-O) which is non–heat treatable alloy for its wide industrial uses and applications in ...
Muna K. Abbass, Haitham Y. Abdul-Majid
doaj +1 more source
WAAM process produce a wall structure full of long and large columnar grains, which can be improved by applying hot forging process, proper buildup process, and correct forging force & temperature to prevent the growth of columnar grains and producing small and equiaxed grains instead.
Abdulaziz I. Albannai+2 more
wiley +1 more source
AA5059 is one of the high strength armor grade aluminium alloy that finds its applications in the military vehicles due to the higher resistance against the armor piercing (AP) threats.
K. Vasu+4 more
doaj
Prediction of Deformations During Gas-Tungsten-Arc Stationary Welds [PDF]
Local temperature measurements on the heated and unheated surfaces and strain measurements on the unheated surfaces of unrestrained circular weld specimens of annealed and cold-rolled Nitronic 40 stainless steel during stationary welding are compared with values predicted from finite-element programs for temperature and strain variations.
Duncan, D.B., Giedt, W.H.
openaire +2 more sources