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Fatigue behavior and plane-strain fracture toughness of sand-cast Mg–10Gd–3Y–0.5Zr magnesium alloy
https://orcid.org/0000-0002-2941-1773
Highlights Fatigue property of sand-cast alloy is significantly increased by T6 heat treatment. Plane-strain fracture toughness of sand-cast-T6 alloy is about 16.3MPam1/2. Sand-cast and sand-cast-T6 alloys exhibit different both fatigue initiation behavior. Sand-cast and sand-cast-T6 alloys exhibit different both fatigue propagation behavior.
Abstract In this study, the tensile properties, high cycle fatigue behavior and plane-strain fracture toughness of the sand-cast Mg–10Gd–3Y–0.5Zr magnesium alloy were investigated, comparison to that of sand-cast plus T6 heat treated magnesium alloy which named after sand-cast-T6. The results showed that the tensile properties of the sand-cast alloy are greatly improved after T6 heat treatment, and the fatigue strength (at 107 cycles) of the sand-cast Mg–10Gd–3Y–0.5Zr magnesium alloy increases from 95 to 120MPa after T6 heat treatment, i.e. the improvement of 26% in fatigue strength has been achieved. The plane-strain fracture toughnesses KIC of the sand-cast and sand-cast-T6 alloys are about 12.1 and 16.3MPam1/2, respectively. In addition, crack initiation, crack propagation and fracture behavior of the studied alloys after tensile test, high cycle fatigue test and plane-strain fracture toughness test were also investigated systematically.
Fatigue behavior and plane-strain fracture toughness of sand-cast Mg–10Gd–3Y–0.5Zr magnesium alloy
https://orcid.org/0000-0002-2941-1773
Highlights Fatigue property of sand-cast alloy is significantly increased by T6 heat treatment. Plane-strain fracture toughness of sand-cast-T6 alloy is about 16.3MPam1/2. Sand-cast and sand-cast-T6 alloys exhibit different both fatigue initiation behavior. Sand-cast and sand-cast-T6 alloys exhibit different both fatigue propagation behavior.
Abstract In this study, the tensile properties, high cycle fatigue behavior and plane-strain fracture toughness of the sand-cast Mg–10Gd–3Y–0.5Zr magnesium alloy were investigated, comparison to that of sand-cast plus T6 heat treated magnesium alloy which named after sand-cast-T6. The results showed that the tensile properties of the sand-cast alloy are greatly improved after T6 heat treatment, and the fatigue strength (at 107 cycles) of the sand-cast Mg–10Gd–3Y–0.5Zr magnesium alloy increases from 95 to 120MPa after T6 heat treatment, i.e. the improvement of 26% in fatigue strength has been achieved. The plane-strain fracture toughnesses KIC of the sand-cast and sand-cast-T6 alloys are about 12.1 and 16.3MPam1/2, respectively. In addition, crack initiation, crack propagation and fracture behavior of the studied alloys after tensile test, high cycle fatigue test and plane-strain fracture toughness test were also investigated systematically.
Fatigue behavior and plane-strain fracture toughness of sand-cast Mg–10Gd–3Y–0.5Zr magnesium alloy
https://orcid.org/0000-0002-2941-1773
Highlights Fatigue property of sand-cast alloy is significantly increased by T6 heat treatment. Plane-strain fracture toughness of sand-cast-T6 alloy is about 16.3MPam1/2. Sand-cast and sand-cast-T6 alloys exhibit different both fatigue initiation behavior. Sand-cast and sand-cast-T6 alloys exhibit different both fatigue propagation behavior.
Abstract In this study, the tensile properties, high cycle fatigue behavior and plane-strain fracture toughness of the sand-cast Mg–10Gd–3Y–0.5Zr magnesium alloy were investigated, comparison to that of sand-cast plus T6 heat treated magnesium alloy which named after sand-cast-T6. The results showed that the tensile properties of the sand-cast alloy are greatly improved after T6 heat treatment, and the fatigue strength (at 107 cycles) of the sand-cast Mg–10Gd–3Y–0.5Zr magnesium alloy increases from 95 to 120MPa after T6 heat treatment, i.e. the improvement of 26% in fatigue strength has been achieved. The plane-strain fracture toughnesses KIC of the sand-cast and sand-cast-T6 alloys are about 12.1 and 16.3MPam1/2, respectively. In addition, crack initiation, crack propagation and fracture behavior of the studied alloys after tensile test, high cycle fatigue test and plane-strain fracture toughness test were also investigated systematically.
Fatigue behavior and plane-strain fracture toughness of sand-cast Mg–10Gd–3Y–0.5Zr magnesium alloy
Liu, Wencai (author) / Jiang, Longkang (author) / Cao, Liang (author) / Mei, Jun (author) / Wu, Guohua (author) / Zhang, Song (author) / Xiao, Lv (author) / Wang, Shaohua (author) / Ding, Wenjiang (author)
2014-03-11
9 pages
Article (Journal)
Electronic Resource
English
Fatigue behavior and plane-strain fracture toughness of sand-cast Mg-10Gd-3Y-0.5Zr magnesium alloy
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