Study on High Cycle Fatigue Behavior of Gravity Cast Mg-3Nd-0.2Zn-Zr Magnesium Alloy

被引：0

作者：

Li Zhifeng ^{[1
]}

Li Zhenming ^{[1
]}

Fu Penghuai ^{[1
]}

Peng Liming ^{[1
]}

Wang Yingxin ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2012年 / 41卷 / 09期

关键词：

magnesium alloy; NZ30K; high cycle fatigue; microstructure; mechanical property; WT.PERCENT ALLOY; HEAT-TREATMENT;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The optical microstructure, mechanical properties and high cycle tension-compression fatigue properties (R= -1) at room temperature of gravity permanent cast (GPC) and gravity sand cast (GSC) Mg-3Nd-0.2Zn-Zr (NZ30K) (wt.%) magnesium alloy were studied. Results show that GPC-NZ30K alloy has normal grain size distribution generally, with relatively fine grains, about 60 mu m, while GSC-NZ30K alloy has non-uniform grain size distribution, with relatively coarse grains, about 70 mu m. Finer grains in GPC-NZ30K-T6 alloy lead to higher yield strength (+6.6 MPa), higher ultimate tensile strength (+43 MPa) and higher elongation (+2.8%). However, it has a little influence on fatigue strength (+1.12 MPa). Coarse and non-uniform grain size distribution in GSC-NZ30K-T6 alloy is favor to minimize the fatigue variation of cast NZ30K-T6 alloy.

引用

页码：1592 / 1596

页数：5

共 12 条

[1] The influence of grain size variation on metal fatigue [J].

Andersson, J .

INTERNATIONAL JOURNAL OF FATIGUE, 2005, 27 (08) :847-852

[2]

Avedesian M.M., 1999, MAGNESIUM MAGNESIUM

[3] The effects of heat treatment and zirconium on the corrosion behaviour of Mg-3Nd-0.2Zn-0.4Zr (wt.%) alloy [J].

Chang, Jian-Wei ;

Fu, Peng-Huai ;

Guo, Xing-Wu ;

Peng, Li-Ming ;

Ding, Wen-Jiang .

CORROSION SCIENCE, 2007, 49 (06) :2612-2627

[4] Influence of heat treatment on fatigue behaviour of high-strength Mg-10Gd-3Y alloy [J].

Dong, J. ;

Liu, W. C. ;

Song, X. ;

Zhang, P. ;

Ding, W. J. ;

Korsunsky, A. M. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (21-22) :6053-6063

[5] Effects of heat treatments on the microstructures and mechanical properties of Mg-3Nd-0.2Zn-0.4Zr (wt.%) alloy [J].

Fu Penghuai ;

Peng Liming ;

Jiang Haiyan ;

Chang Jianwei ;

Zhai Chunquan .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 486 (1-2) :183-192

[6] Zr-containing precipitates in Mg-3wt%Nd-0.2wt%Zn-0.4wt%Zr alloy during SolutionTreatment at 540°C [J].

Fu, Penghuai ;

Peng, Liming ;

Jiang, Haiyan ;

Zhai, Chunquan ;

Ga, X. ;

Nie, J. F. .

2006 BIMW: 2006 BEIJING INTERNATIONAL MATERIALS WEEK, PTS 1-4: MAGNESIUM, 2007, 546-549 :97-+

[7] High cycle fatigue of a die cast AZ91E-T4 magnesium alloy [J].

Horstemeyer, MF ;

Yang, N ;

Gall, K ;

McDowell, DL ;

Fan, J ;

Gullett, PM .

ACTA MATERIALIA, 2004, 52 (05) :1327-1336

[8] Tensile and low-cycle fatigue properties of Mg-2.8% Al-1.1% Zn-0.4% Mn alloy along the transverse and rolling directions [J].

Lv, F. ;

Yang, F. ;

Duan, Q. Q. ;

Luo, T. J. ;

Yang, Y. S. ;

Li, S. X. ;

Zhang, Z. F. .

SCRIPTA MATERIALIA, 2009, 61 (09) :887-890

[9] Chemical composition optimization of gravity cast Mg-yNd-xZn-Zr alloy [J].

Penghuai, Fu ;

Liming, Peng ;

Haiyan, Jiang ;

Lan, Ma ;

Chunquan, Zhai .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 496 (1-2) :177-188

[10] The fatigue behavior of I-phase containing as-cast Mg-Zn-Y-Zr alloy [J].

Xu, D. K. ;

Liu, L. ;

Xu, Y. B. ;

Han, E. H. .

ACTA MATERIALIA, 2008, 56 (05) :985-994

← 1 2 →