Specifications

2 Department of Mechanical Engineering, Xi'an Aerotechnical College, Xi'an, Shaanxi, 710077,

China

Corresponding author: Ma, Y. (rainmy905@163.com)

Source title: Applied Mechanics and Materials

Abbreviated source title: Appl. Mech. Mater.

Volume: 268

Issue: PART 1

Monograph title: Materials, Mechanical Engineering and Manufacture

Issue date: 2013

Publication year: 2013

Pages: 330-335

Language: English

ISSN: 16609336

E-ISSN: 16627482

ISBN-13: 9783037855799

Document type: Conference article (CA)

Conference name: 2nd International Conference on Applied Mechanics, Materials and

Manufacturing, ICAMMM 2012

Conference date: November 17, 2012 - November 18, 2012

Conference location: Changsha, China

Conference code: 95054

Publisher: Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670,

Germany

Abstract: The corrosion behavior of extruded Mg-1Ca-0.5Mn (weight percent)alloy in 0.9%

sodium chloride water solution was investigated by using mass-loss measurement and

electrochemical method. The results show that filiform corrosion and pitting corrosion occur

during immersion corrosion process. The average corrosion rate gradually decreases as

immersion time increases; it is 0.53 mm/a after immersion at 37° for 11 days. The corrosion

current density icorr and corrosion potential Ecorr of the alloy is 0.042 mA/cm2 and -1.60V,

respectively. The instantaneous corrosion rate is 0.88 mm/a. Mg-1Ca-0.5Mn alloy erodes by

continuous dissolution. The corrosion product Mg(OH)2 layer surrounding the magnesium alloy

can decrease the corrosion rate. The erosion process of the magnesium alloy is controlled by

Number of references: 11

Main heading: Corrosion rate

Controlled terms: Calcium - Corrosion - Corrosive effects - Magnesium alloys -

Manganese - Manganese removal (water treatment) - Manufacture - Pitting -

Sodium chloride

Uncontrolled terms: Continuous dissolution - Corrosion behavior - Corrosion

current densities - Corrosion potentials - Corrosion process - Corrosion products -

ELectrochemical methods - Erosion process - Filiform corrosion - Immersion time -

Mass loss - Mass-loss measurement - NaCl solution - Polarization curves - Water

solutions - Weight percent

Classification code: 445.1 Water Treatment Techniques - 537.1 Heat Treatment