ManageChatDiscover
7666

CORROSION INHIBITION OF AL-CU ALLOY IN ACIDIC MEDIA BY CASSIA ACUTIFOLIA EXTRACT.

Article

Last updated: 03 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

Chemistry

Abstract

The inhibitive action of aqueous extract of Cassia acutifolia (CA) plant on Al-Cu alloy corrosion in 2M HCl, H3PO4 and H2SO4 solutions was studied using weight loss, potentiodynamic and impedance measurements. The inhibition was found to increase with increasing concentration of CA extract. The adsorption behaviour of CA extract followed Flory – Huggins and thermodynamic – Kinetic isotherms. The effect of temperature range (25-65oC) on the corrosion behaviour of Al-Cu alloy in 2M HCl solution indicated that the inhibition efficiency of CA extract decreases with rise of the temperature leading to physical adsorption. Thermodynamic parameters are calculated from Arrhenius transition state equation. Polarization curves showed that CA extract acts as cathodic type inhibitor. Tafel slopes are more or less constant suggesting that the action of CA extract does not affect the mechanism of corrosion process. The results obtained show that the CA extract could serve as an effective inhibitor for the corrosion of Al-Cu alloy in HCl solution.

DOI

10.21608/absb.2009.7666

Keywords

Corrosion inhibition, Natural extract, Al alloy

Volume

20

Article Issue

Issue 2-A

Related Issue

1473

Issue Date

2009-12-01

Receive Date

2009-07-13

Publish Date

2009-12-17

Page Start

89

Page End

105

Print ISSN

1110-2535

Online ISSN

2636-3305

Article File

ABSB_Volume 20_Issue Issue 2-A_Pages 89-105.pdf

PDF . 678.9kB

Link

https://absb.journals.ekb.eg/article_7666.html

Detail API

https://absb.journals.ekb.eg/service?article_code=7666

Order

6

Type

Original Article

Type Code

520

Publication Type

Journal

Publication Title

Al-Azhar Bulletin of Science

Publication Link

https://absb.journals.ekb.eg/

MainTitle

CORROSION INHIBITION OF AL-CU ALLOY IN ACIDIC MEDIA BY CASSIA ACUTIFOLIA EXTRACT.

Details

Type

Article

Created At

22 Jan 2023