Characterization of gun-barrel steel corrosion as a function of time in concentrated hydrochloric acid solution

Document Type

Article

Publication Date

1-1-2002

Abstract

The corrosion behavior of gun-barrel steel in 37.8% hydrochloric acid (HCI) at room temperature was investigated as a function of exposure time by several methods, including mass loss measurement, atomic absorption spectrometer (AAS), x-ray diffraction (XRD), scanning electron microscopy (SEM)/ energy dispersive x-ray analysis (EDX), x-ray fluorescence (XRF), and x-ray absorption fine structure (XAFS). The corrosion rate showed unsteady-state behavior: however, time had no significant effect on the composition of corrosion product. XRD analyses of this surface corrosion indicated the formation of akaganeite (β-FeOOH). Fluorescence XAFS studies revealed that the iron coordination environment in the steel was similar to that of the body-centered cubic (bcc) iron. Surface sensitive total electron yield (TEY) XAFS showed that the structure of the corrosion product was invariant as a function of exposure time.

Identifier

0036538610 (Scopus)

Publication Title

Corrosion

External Full Text Location

https://doi.org/10.5006/1.3287689

ISSN

00109312

First Page

370

Last Page

380

Issue

4

Volume

58

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