Skip to main content Accessibility help

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

  • Wen-Cai Liu, Jie Dong (a1), Ping Zhang (a2), Li Jin, Tao Peng (a1), Chun-Quan Zhai and Wen-Jiang Ding (a3)...


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.


Corresponding author

a)Address all correspondence to this author. e-mail:


Hide All
1.Yang, Y., Liu, Y.B.High cycle fatigue characterization of two die-cast magnesium alloys. Mater. Charact. 59, 567 (2008)
2.Luo, A., Pekguleryuz, M.O.Review: Cast magnesium alloys for elevated temperature applications. J. Mater. Sci. 29, 5259 (1994)
3.Mordike, B.L., Ebert, T.Magnesium: Properties—Applications—Potential. Mater. Sci. Eng., A 302, 37 (2001)
4.Rokhlin, L.L.Advanced light alloys and compositesProceedings of NATO Advanced Study Institute (Kluwer, Dordrecht, The Netherlands 1998)14431448
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)
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)
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)
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)
9.Anyanwu, I.A., Kamado, S., Kojima, Y.Creep properties of Mg–Gd–Y–Zr alloys. Mater. Trans. 42, 1212 (2001)
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)
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)
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)
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)
14.Nayeb-Hashemi, A.A., Clark, J.B.Phase Diagrams of Binary Magnesium Alloys (ASM International, Metals Park, OH 1988)
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)
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)
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)319324
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)
19.Ogarevic, V.V., Stephens, R.I.Fatigue of magnesium alloys. Annu. Rev. Mater. Sci. 20, 141 (1990)
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)
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)
22.Nie, J.F.Effects of precipitate shape and orientation on dispersion strengthening in magnesium alloys. Scr. Mater. 48, 1009 (2003)
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)
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)
25.Kim, J.H., Kim, M.G.Considerations in non-propagating crack of pure titanium. Mater. Sci. Eng., A 346, 216 (2003)
26.Morita, T., Shimizu, M., Kawasaki, K., Chiba, T.Fatigue property of nitrided Ti–6Al–4V alloy. Trans. JSME 56, 1915 (1990)
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)
28.Roberts, C.S.Magnesium and Its Alloys (John Wiley and Sons, New York 1960)
29.Chandrasekaran, D.Solid solution hardening: A comparison of two models. Mater. Sci. Eng., A 309–310, 184 (2001)
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)
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)


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

  • Wen-Cai Liu, Jie Dong (a1), Ping Zhang (a2), Li Jin, Tao Peng (a1), Chun-Quan Zhai and Wen-Jiang Ding (a3)...


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed