Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-28T10:53:35.076Z Has data issue: false hasContentIssue false
  • English
  • Français

Fatigue behavior of hot-extruded Mg–10Gd–3Y magnesium alloy

Published online by Cambridge University Press:  31 January 2011

Wen-Cai Liu ,
Jie Dong ,
Ping Zhang ,
Li Jin ,
Tao Peng ,
Chun-Quan Zhai  and
Wen-Jiang Ding
Jie Dong*
Affiliation:
National Engineering Research Center of Light Alloy Net Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Ping Zhang
Affiliation:
Physical Metallurgy and Materials Technology, Technical University of Brandenburg at Cottbus, Konrad-Wachsmann-Allee 17, 03046 Cottbus, Germany
Tao Peng
Affiliation:
National Engineering Research Center of Light Alloy Net Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Wen-Jiang Ding
Affiliation:
National Engineering Research Center of Light Alloy Net Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; and Key State Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
*
a)Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

In this study, the influence of T5 heat treatment on tensile and fatigue behavior of hot-extruded Mg–10Gd–3Y (wt%) magnesium alloy has been investigated. High cycle fatigue tests were carried out at a stress rate (R) of −1 and a frequency of 100 Hz using hour-glass-shaped round specimens with a gauge diameter of 5.8 mm. The results show that fatigue strength (at 107 cycles) of Mg–10Gd–3Y magnesium alloy increases from 150 to 165 MPa after T5 heat treatment, i.e., the improvement of 10% in fatigue strength has been achieved. However, the crack growth resistance is lowered by T5 heat treatment. Results of microstructure observation and scanning electron microscopy-energy dispersive x-ray (SEM-EDX) analysis suggest that the fatigue strength in the Mg–10Gd–3Y magnesium alloy is determined by the threshold stress of basal slip, which is induced by solid solution hardening and precipitation hardening.

Keywords

AlloyFatigueMg
Type
Articles
Information
Journal of Materials Research , Volume 25 , Issue 4 , April 2010 , pp. 773 - 783
Copyright
Copyright © Materials Research Society 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Yang, Y., Liu, Y.B.High cycle fatigue characterization of two die-cast magnesium alloys. Mater. Charact. 59, 567 (2008)CrossRefGoogle Scholar
2.Luo, A., Pekguleryuz, M.O.Review: Cast magnesium alloys for elevated temperature applications. J. Mater. Sci. 29, 5259 (1994)CrossRefGoogle Scholar
3.Mordike, B.L., Ebert, T.Magnesium: Properties—Applications—Potential. Mater. Sci. Eng., A 302, 37 (2001)CrossRefGoogle Scholar
4.Rokhlin, L.L.Advanced light alloys and compositesProceedings of NATO Advanced Study Institute (Kluwer, Dordrecht, The Netherlands 1998)14431448Google Scholar
5.Anyanwu, I.A., Kamado, S., Kojima, Y.Aging characteristics and high temperature tensile properties of Mg–Gd–Y–Zr alloys. Mater. Trans. 42, 1206 (2001)CrossRefGoogle Scholar
6.Honma, T., Ohkubo, T., Kamado, S., Hono, K.Effect of Zn on age hardening and elongation in Mg–2.0Gd–1.2Y–0.2 Zr alloy. Acta Mater. 55, 4137 (2007)CrossRefGoogle Scholar
7.He, S.M., Zeng, X.Q., Peng, L.M., Gao, X., Nie, J.F., Ding, W.J.Precipitation in a Mg–10Gd–3Y–0.4Zr (wt%) alloy during isothermal ageing at 250 °C. J. Alloys Compd. 421, 309 (2006)CrossRefGoogle Scholar
8.He, S.M., Zeng, X.Q., Peng, L.M., Gao, X., Nie, J.F., Ding, W.J.Microstructure and strengthening mechanism of high strength Mg–10Gd–2Y–0.5Zr alloy. J. Alloys Compd. 427, 316 (2007)CrossRefGoogle Scholar
9.Anyanwu, I.A., Kamado, S., Kojima, Y.Creep properties of Mg–Gd–Y–Zr alloys. Mater. Trans. 42, 1212 (2001)CrossRefGoogle Scholar
10.Honma, T., Ohkubo, T., Hono, K., Kamado, S.Chemistry of nanoscale precipitates in Mg–2.1Gd–0.6Y–0.2Zr (at.%) alloy investigated by the atom probe technique. Mater. Sci. Eng., A 395, 301 (2005)CrossRefGoogle Scholar
11.Chang, J.W., Guo, X.W., He, S.M., Fu, P.H., Peng, L.M., Ding, W.J.Investigation of the corrosion for Mg–xGd–3Y–0.4Zr (x = 6%, 8%, 10%, 12%, mass fraction) alloys in a peak-aged condition. Corros. Sci. 50, 166 (2008)CrossRefGoogle Scholar
12.Wang, J., Meng, J., Zhang, D.P., Tang, D.X.Effect of Y for enhanced age hardening response and mechanical properties of Mg–Gd–Y–Zr alloys. Mater. Sci. Eng., A 456, 78 (2007)CrossRefGoogle Scholar
13.Kawamura, Y., Hayashi, K., Inoue, A., Masumoto, T.Rapidly solidified powder metallurgy Mg97 Zn1 Y2 alloys with excellent tensile yield strength above 600 MPa. Mater. Trans., JIM 42, 1172 (2001)CrossRefGoogle Scholar
14.Nayeb-Hashemi, A.A., Clark, J.B.Phase Diagrams of Binary Magnesium Alloys (ASM International, Metals Park, OH 1988)Google Scholar
15.Liu, X.B., Chen, R.S., Han, E.H.Effects of ageing treatment on microstructures and properties of Mg–Gd–Y–Zr alloys with and without Zn additions. J. Alloys Compd. 465, 232 (2008)CrossRefGoogle Scholar
16.Kim, W.J., Hong, S.I., Kim, Y.S., Min, S.H., Jeong, H.T., Lee, J.D.Texture development and its effect on mechanical properties of an AZ61 Mg alloy fabricated by equal channel angular pressing. Acta Mater. 51, 3293 (2003)CrossRefGoogle Scholar
17.Hilpert, M., Styczynski, A., Kiese, J., Wagner, L.Magnesium Alloys and Their Application edited by B.L. Mordike and K.U. Kainer (Werkstoff-Informationsgesellshaft, Hamburg 1998)319324Google Scholar
18.Mukai, T., Yamanoi, M., Watanabe, H., Higashi, K.Ductility enhancement in AZ31 magnesium alloy by controlling its grain structure. Scr. Mater. 45, 89 (2001)CrossRefGoogle Scholar
19.Ogarevic, V.V., Stephens, R.I.Fatigue of magnesium alloys. Annu. Rev. Mater. Sci. 20, 141 (1990)CrossRefGoogle Scholar
20.Ishihara, S., Nan, Z.Y., Goshima, T.Effect of microstructure on fatigue behavior of AZ31 magnesium alloy. Mater. Sci. Eng., A 468–470, 214 (2007)CrossRefGoogle Scholar
21.Nie, J.F., Gao, X., Zhu, S.M.Enhanced age hardening response and creep resistance of Mg–Gd alloys containing Zn. Scr. Mater. 53, 1049 (2005)CrossRefGoogle Scholar
22.Nie, J.F.Effects of precipitate shape and orientation on dispersion strengthening in magnesium alloys. Scr. Mater. 48, 1009 (2003)CrossRefGoogle Scholar
23.Nan, Z.Y., Ishihara, S., McEvily, A.J., Shibata, H., Komano, K.On the sharp bend of the S–N curve and the crack propagation behavior of extruded magnesium alloy. Scr. Mater. 56, 649 (2007)CrossRefGoogle Scholar
24.Xu, D.K., Liu, L., Xu, Y.B., Han, E.H.The crack initiation mechanism of the forged Mg–Zn–Y–Zr alloy in the super-long fatigue life regime. Scr. Mater. 56, 1 (2007)CrossRefGoogle Scholar
25.Kim, J.H., Kim, M.G.Considerations in non-propagating crack of pure titanium. Mater. Sci. Eng., A 346, 216 (2003)CrossRefGoogle Scholar
26.Morita, T., Shimizu, M., Kawasaki, K., Chiba, T.Fatigue property of nitrided Ti–6Al–4V alloy. Trans. JSME 56, 1915 (1990)CrossRefGoogle Scholar
27.Gharghouri, M.A., Weatherly, G.C., Embury, J.D., Root, J.Study of the mechanical properties of Mg–7.7at.% Al by in situ neutron diffraction. Philos. Mag. A 79, 1671 (1999)CrossRefGoogle Scholar
28.Roberts, C.S.Magnesium and Its Alloys (John Wiley and Sons, New York 1960)Google Scholar
29.Chandrasekaran, D.Solid solution hardening: A comparison of two models. Mater. Sci. Eng., A 309–310, 184 (2001)CrossRefGoogle Scholar
30.Zheng, K.Y., Dong, J., Zeng, X.Q., Ding, W.J.Effect of pre-deformation on aging characteristics and mechanical properties of a Mg–Gd–Nd–Zr alloy. Mater. Sci. Eng., A 491, 103 (2008)CrossRefGoogle Scholar
31.Jin-feng, H., Hong-yan, Y., Yon-bing, L., Hua, C., Jian-ping, H., Ji-shan, Z.Precipitation behaviors of spray formed AZ91 magnesium alloy during heat treatment and their strengthening effect. Mater. Des. 30, 440 (2009)Google Scholar