The structure, properties and change in the cross-sectional corrosion resistance of a nitrided layer produced on AISI 321 steel

Jagielska-Wiaderek, K.

doi:10.1504/ijsurfse.2016.079046

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“…The thickness of the layers ground off was determined from the mass loss of the examined disc electrode in relation to its initial mass, established with an accuracy of ±0.02 mg. The methodology described above [13][14][15] is called the progressive thinning method. The corrosion properties of the layers were investigated using a CHI1130A electrochemical analyzer.…”

Section: Methodsmentioning

confidence: 99%

Depth Corrosion Characteristics of Borided Layer Produced on AISI 321 Stainless Steel

Jagielska-Wiaderek

2019

Acta Phys. Pol. A

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This paper presents the results of effects of boronizing process of AISI 321 austenitic stainless steel on its electrochemical corrosion resistance. The steel samples were boronized at a temperature of 900 • C for 6 h. In this process, a mixture powder (B4C, SiC, borax), alumina (Al2O3) and potassium fluoroborate (KBF4) was used. The evaluation of the corrosion resistance of boronized stainless steel was carried out by using the so-called progressive thinning method, consisting in determination of polarisation characteristics on increasingly-deeper situated regions of the top layer. This method made it possible to determine changes in particular corrosion parameters read out from potentiodynamic polarisation curves, thus enabling the depth profiles of these parameters. Potentiodynamic polarization tests were carried out in an 0.5 M sulphate solution acidified to pH = 2.0. It is shown that unlike unmodified steel, the boron-rich outer layer does not passivate but undergoes fast dissolution both in active-and transpassive regions in the corrosion solution.

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Section: Methodsmentioning

confidence: 99%

Depth Corrosion Characteristics of Borided Layer Produced on AISI 321 Stainless Steel

Jagielska-Wiaderek

2019

Acta Phys. Pol. A

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show abstract

The structure, properties and change in the cross-sectional corrosion resistance of a nitrided layer produced on AISI 321 steel

Cited by 1 publication

References 0 publications

Depth Corrosion Characteristics of Borided Layer Produced on AISI 321 Stainless Steel

Depth Corrosion Characteristics of Borided Layer Produced on AISI 321 Stainless Steel

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