Mechanical and metallurgical properties of ion-nitrided austenitic-stainless steel welds

Çetinarslan, Cem S.; Şahin, Mümin; Genç, Serhan Karaman; Sevil, Ceyhun

doi:10.2478/s13536-012-0052-x

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…The plasma nitriding process caused a longer fatigue life under the same loading conditions, which the experimental samples were loaded, compared to the sample in the initial state. The opposite results were obtained by Çetinarslan et al [12], who found that non-nitrided specimens withstood a higher number of cycles than specimens after nitriding. However, these authors performed a different type of fatigue tests, tensile fatigue tests.…”

Section: Resultsmentioning

confidence: 70%

Fracture Mechanisms of Austenitic Steel Caused by Dynamic Tests

Uhríčik

Palček

Chalupová

et al. 2023

DDF

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The article is focused on the analysis of fracture mechanisms of specimens made of austenitic steel, which have been subjected to dynamic tests. Austenitic stainless steels are characterized as high corrosion resistant materials with high bio-tolerance and relatively high strength. They are made by cold working, where plastic deformation occurs and they are deformed especially by slipping and twinning. Deformed regions are characterized by deformation twins and slip deformation. Specimens were used in two states, in the initial state and after chemical-thermal treatment. Dynamic tests to which specimens were subjected were the impact test and the three-point bending test. Fracture areas were evaluated by scanning electron microscope.

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Section: Resultsmentioning

confidence: 70%

Fracture Mechanisms of Austenitic Steel Caused by Dynamic Tests

Uhríčik

Palček

Chalupová

et al. 2023

DDF

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“…Up to now, various welding techniques have been used for steel and magnesium connections, including solid-state connection technologies such as friction stir welding [8][9][10][11], diffusion welding [12,13], and ultrasonic spot welding [14,15], as well as fusion welding technology, for instance, resistance spot welding [16], MIG welding [17], and composite heat source welding [18][19][20], However, these welding techniques are of limited use in practical industrial applications. As for the application of laser sources [21], which have the characteristics of a large temperature gradient, high energy density, high efficiency, good process repeatability, and narrow heat-affected zone, they are widely used in dissimilar metal welding in recent years [22,23], Miao et al [24] studied the laser brazing welding technique with steel and magnesium, and they found that steel/magnesium metallurgical bonding can be achieved because steel reacts with alloying elements of magnesium alloy to form a diffusion layer.…”

Section: Introductionmentioning

confidence: 99%

Formability of laser welded steel/magnesium dissimilar metal with Sn powder-adhesive interlayer

Tao

Liu

Zhou

et al. 2021

Materials Science-Poland

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The exploratory experiments of laser fusion welding with Sn powder and the automotive adhesive addition were conducted for DP590 dual-phase steel and AZ31B magnesium alloy in an overlap steel-on-magnesium configuration. The characteristics of metal vapor/plasma were analyzed by collecting and analyzing plasma shape and welding spectra. The microstructure of the welded was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray spectrometer (EDS). The temperature field distribution of the joint was simulated by COMSOL finite-element software. The results showed that the transfer of heat from steel to the magnesium alloy is hindered by the adhesive layer, which is conducive to the simultaneous melting of steel and magnesium with large differences in melting and boiling points. In addition, the width of the molten pool increases, but the depth is shallow on the magnesium side. Meanwhile, the recoil pressure induced by the splashing of the molten pool reduces, and the surface quality of the weld is improved. Some intermetallic compounds (IMCs), such as FeSn, Fe1.3Sn, and Fe3Sn, are formed inside the molten pool, while columnar dendrite Mg2Sn phase is also produced. The presence of these phases helps realize the bidirectional metallurgical bonding of steel/magnesium dissimilar metals.

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