Surface microstructure and property modifications in AISI 304 stainless steel induced by pseudospark pulsed electron beam treatments

Cao, Xiankun; Hu, Jing; Huo, Weijie; Xi, Xin; Zhao, Wansheng

doi:10.1016/j.vacuum.2020.109914

Cited by 18 publications

(5 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A number of research groups are studying the behavior of the structure, defect substructure, elemental and phase composition [ 4 , 5 , 6 , 7 ], improvement of physical and mechanical properties [ 8 ], and enhancement of corrosion resistance [ 9 ] of metallic materials treated with pulsed electron beam.…”

Section: Introductionmentioning

confidence: 99%

Deformation Inhomogeneities of a Hypoeutectic Aluminum-Silicon Alloy Modified by Electron Beam Treatment

et al. 2023

View full text Add to dashboard Cite

This paper presents the results of uniaxial tensile tests on specimens of the hypoeutectic aluminum-silicon alloy A319. According to the results, the influence of surface treatment by pulsed electron beam on the mechanical properties of the material was determined. The peculiarities of deformation localization in the material caused by grinding of the surface layer material structure due to rapid crystallization during electron beam treatment were revealed. The surface treatment up to the depth of 100 µm leads to the formation of a fine dendritic columnar structure of silumin and to an increase in the plasticity of the samples. The influence of the surface treatment affects the increase in the deformation localization in the region of the stable concentrator before failure. The greatest increase in ductility and localization of deformation occurs during treatment with an energy density of 15 J/cm2. In the process of specimen deformation, unstable, metastable, and stable areas of plastic deformation localization are formed and replaced, and the formation of stable areas of localized plastic deformation, in which the specimen fails at the end of the test, can be detected at the initial stages of testing. In specimens, during the test in the zone of localized plastic deformation, bands are formed which pass through the entire surface of the specimen at an angle of 35 to 55 degrees to the tensile axis, and their development leads to the formation of stable zones of localized plastic deformation and to the failure of the specimen.

show abstract

Section: Introductionmentioning

confidence: 99%

Deformation Inhomogeneities of a Hypoeutectic Aluminum-Silicon Alloy Modified by Electron Beam Treatment

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Laser and electron beam processing can be used to create thick coatings that are suited for tribological purposes. However, electron beam has drawbacks, such as the requirement for a vacuum chamber and significant equipment and manufacturing expenses, whereas laser technology has very high equipment cost and problem of reflectivity of substrate material [8,9]. To address these difficulties, many researchers have employed the TIG technique to fabricated hard and thick coatings on a variety of diverse substrates.…”

Section: Introductionmentioning

confidence: 99%

Effect of cobalt addition on wear behaviour of TiB₂ coating produced by TIG cladding process

Kumar,

Kumar Das

2023

Eng. Res. Express

View full text Add to dashboard Cite

In this paper, the mechanical and tribological characteristics of TiB2 ceramic coating with and without cobalt (Co) addition developed using tungsten inert gas (TIG) cladding process on AISI 304 stainless steel (SS) were investigated. The effect of TIG process conditions as well as cobalt (Co) content on the microstructure, microhardness and resistance to wear were investigated systematically. The phase identification, microstructure, and elemental distribution map of the clad layer formed on the surface of an AISI 304SS substrate were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS), respectively. Vickers microhardness testing apparatus and a pin-on-disc tribometer were used to evaluate the microhardness, resistance to wear, and coefficient of friction (COF), respectively. The result demonstrates that a dense and defect-free composite coating with a strong metallurgical bond to the substrate is possible. The average microhardness of the TiB2 ceramic coating without Co addition was 1704 HV, and the average wear rate was 15.1576×10-9 g/N-m. In contrast, the TiB2 ceramic coating with Co addition exhibited an improved average microhardness of 1860 HV and a reduced average wear rate of 22.7364×10-9 g/N-m, while the AISI 304SS substrate had an average microhardness of 216 HV and an average wear rate of 200.45×10-9 g/N-m. The conclusion is that the TiB2 ceramic coating with Co addition exhibited superior mechanical and tribological characteristics, demonstrating its suitability for use in wear-resistant components. The higher microhardness of the TiB2 ceramic with Co-added coating indicates enhanced hardness and potential resistance to deformation, while the lower wear rate suggests improved durability and the ability to withstand frictional forces. Therefore, the TiB2 ceramic coating with Co addition shows promise for applications where wear resistance is crucial.

show abstract

“…In [3], the changes in the microstructure, mechanical properties and corrosion behavior of AISI 304 austenitic stainless steel treated with a pseudospark pulsed electron beam (PSPEB) with a different number of pulses were investigated. The results of the EDS analysis showed that the precipitated ferritic phase was dissolved in the matrix, forming a homogeneous composition in the modified layer.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2023

J. Mater. Eng.

View full text Add to dashboard Cite

The paper presents the results of experimental studies of the AISI 304 steel disc surface after finishing turning, electropolishing and nanostructuring burnishing after one and five passes of the tool with a natural diamond tip with a radius of 2 mm. It is shown that surface layer nanocrystallization provides for almost complete decomposition of austenite in a layer up to 100 µm thick, an increase in microhardness up to 400...450 HV0.025 and a 3.3-fold reduction in the wear intensity on hardened AISI 1045 steel under conditions of lubrication with industrial oil compared with electropolishing. The content of residual austenite in the surface layer is not more than 5% when the temperature rises to 400°C.

show abstract

Surface microstructure and property modifications in AISI 304 stainless steel induced by pseudospark pulsed electron beam treatments

Cited by 18 publications

References 47 publications

Deformation Inhomogeneities of a Hypoeutectic Aluminum-Silicon Alloy Modified by Electron Beam Treatment

Deformation Inhomogeneities of a Hypoeutectic Aluminum-Silicon Alloy Modified by Electron Beam Treatment

Effect of cobalt addition on wear behaviour of TiB₂ coating produced by TIG cladding process

Untitled

Contact Info

Product

Resources

About

Surface microstructure and property modifications in AISI 304 stainless steel induced by pseudospark pulsed electron beam treatments

Cited by 18 publications

References 47 publications

Deformation Inhomogeneities of a Hypoeutectic Aluminum-Silicon Alloy Modified by Electron Beam Treatment

Deformation Inhomogeneities of a Hypoeutectic Aluminum-Silicon Alloy Modified by Electron Beam Treatment

Effect of cobalt addition on wear behaviour of TiB2 coating produced by TIG cladding process

Untitled

Contact Info

Product

Resources

About

Effect of cobalt addition on wear behaviour of TiB₂ coating produced by TIG cladding process