Corrosion Behavior of Mg-0.12Ca-0.08Ba Magnesium Alloy in Two Different Status

LIU Jie, DONG Li

doi:10.16577/j.issn.1001-1560.2023.0088

Materials Protection >

2023 , Vol. 56 >Issue 4: 88 - 95

DOI: https://doi.org/10.16577/j.issn.1001-1560.2023.0088

Corrosion Behavior of Mg-0.12Ca-0.08Ba Magnesium Alloy in Two Different Status

Expand

(1.College of Mechanical and Electrical Engineering，Shenzhen Polytechnic，Shenzhen 518055，China；2.College of Materials Science and Engineering，Chongqing University，Chongqing 400044，China)

Received date: 2022-10-09

Revised date: 2022-11-09

Accepted date: 2022-12-14

Online published: 2023-08-03

Fold

Abstract

The application of magnesium alloy is limited due to its poor deformation ability and corrosion resistance.In order to extend its application，a novel Mg-0.12Ca-0.08Ba alloy was designed and prepared by low alloying method.The corrosion behavior of the as-prepared alloy in 3.5%NaCl solution was investigated by immersion test in NaCl solution，SEM，EDS analysis and electrochemical test.Results showed that with the increase of corrosion time，the surface of extruded and extruded annealed Mg-0.12Ca-0.08Ba alloy changed from local pitting to large-scale corrosion，and the corrosion products gradually increased.The corrosion products were mainly MgO and Mg(OH)2，the line roughness and surface roughness of the alloy surface increased significantly，and the hydrogen evolution rate decreased gradually.Compared with extruded magnesium alloy，the hydrogen evolution rate of annealed alloy was slower，the open circuit potential was higher，and the corrosion current was smaller，indicating that the corrosion resistance performance of annealed alloy was better.

Key words： magnesium alloy; extruded; annealed; corrosion; hydrogen evolution; electrochemistry

Cite this article

LIU Jie, DONG Li . Corrosion Behavior of Mg-0.12Ca-0.08Ba Magnesium Alloy in Two Different Status[J]. Materials Protection, 2023 , 56(4) : 88 -95 . DOI: 10.16577/j.issn.1001-1560.2023.0088

Options

Outlines

模态框（Modal）标题

Abstract

Cite this article