As cast microstructures on the mechanical and corrosion behaviour of ZK40 modified with Gd and Nd additions

被引：36

作者：

Buzolin, R. H. ^{[1
,2
]}

Mohedano, M. ^{[1
,3
]}

Mendis, C. L. ^{[1
]}

Mingo, B. ^{[3
]}

Tolnai, D. ^{[1
]}

Blawert, C. ^{[1
]}

Kainer, K. U. ^{[1
]}

Pinto, H. ^{[2
]}

Hort, N. ^{[1
]}

机构：

[1] Helmholtz Zentrum Geesthacht, Magnesium Innovat Ctr, Max Planck Str 1, D-21502 Geesthacht, Germany

[2] Univ Sao Paulo, Dept Mat Engn, Av Joao Dagnone 1100, BR-13563120 Sao Carlos, SP, Brazil

[3] Univ Complutense, Fac Ciencias Quim, Dept Ciencia Mat, E-28040 Madrid, Spain

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 682卷

基金：

英国工程与自然科学研究理事会;

关键词：

Mg-Zn-Zr alloys; Rare earth additions; Corrosion; Mechanical properties; MAGNESIUM ALLOYS; AZ91;

D O I：

10.1016/j.msea.2016.11.022

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The microstructure of ZK40, ZK40 with 2 wt% of Nd and Gd (ZK40-2Nd and ZK40-2Gd, respectively) were investigated with optical, scanning and transmission electron microscopy, X-ray diffraction and Scanning Kelvin Probe Force Microscopy. The mechanical properties and the corrosion behaviour were correlated with the microstructure. The 2 wt% Gd addition enhanced the ductility, while the Nd addition resulted in deterioration in mechanical properties. The corrosion behaviour was also enhanced with the addition of Gd.

引用

页码：238 / 247

页数：10

共 44 条

[1] Evaluation of microstructural effects on corrosion behaviour of AZ91D magnesium alloy [J].

Ambat, R ;

Aung, NN ;

Zhou, W .

CORROSION SCIENCE, 2000, 42 (08) :1433-1455

[2] Microgalvanic activity of an Mg-Al-Ca-based alloy studied by scanning Kelvin probe force microscopy [J].

Apachitei, I. ;

Fratila-Apachitei, L. E. ;

Duszczyk, J. .

SCRIPTA MATERIALIA, 2007, 57 (11) :1012-1015

[3] Effect of Nd on the corrosion behaviour of AM50 and AZ91D magnesium alloys in 3.5 wt.% NaCl solution [J].

Arrabal, R. ;

Pardo, A. ;

Merino, M. C. ;

Mohedano, M. ;

Casajus, P. ;

Paucar, K. ;

Garces, G. .

CORROSION SCIENCE, 2012, 55 :301-312

[4]

Avedesian M.M., 1999, MAGNESIUM MAGNESIUM

[5] AC impedance spectroscopy in characterizing time-dependent corrosion of AZ91 and AM50 magnesium alloys -: Characterization with respect to their microstructures [J].

Baril, G ;

Blanc, C ;

Pébère, N .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (12) :B489-B496

[6] On the corrosion of binary magnesium-rare earth alloys [J].

Birbilis, N. ;

Easton, M. A. ;

Sudholz, A. D. ;

Zhu, S. M. ;

Gibson, M. A. .

CORROSION SCIENCE, 2009, 51 (03) :683-689

[7] THE ANALYSIS OF ELECTRODE IMPEDANCES COMPLICATED BY THE PRESENCE OF A CONSTANT PHASE ELEMENT [J].

BRUG, GJ ;

VANDENEEDEN, ALG ;

SLUYTERSREHBACH, M ;

SLUYTERS, JH .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 176 (1-2) :275-295

[8] Investigation of the corrosion for Mg-xGd-3Y-0.4Zr (x=6,8,10,12 wt%) alloys in a peak-aged condition [J].

Chang, Jianwei ;

Guo, Xingwu ;

He, Shangming ;

Fu, Penghuai ;

Peng, Liming ;

Ding, Wenjiang .

CORROSION SCIENCE, 2008, 50 (01) :166-177

[9] Susceptibility of rare-earth-magnesium alloys to micro-galvanic corrosion [J].

Coy, A. E. ;

Viejo, F. ;

Skeldon, P. ;

Thompson, G. E. .

CORROSION SCIENCE, 2010, 52 (12) :3896-3906

[10] CORROSION RATES FROM IMPEDANCE MEASUREMENTS - AN INTRODUCTION [J].

HLADKY, K ;

CALLOW, LM ;

DAWSON, JL .

BRITISH CORROSION JOURNAL, 1980, 15 (01) :20-25

← 1 2 3 4 5 →