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Corrosion behaviors for peak-aged Mg-7Gd-5Y-lNd-0.5Zr alloys with oxide filmsQuan-Tong Jiang,Kui Zhang,Xing-Gang Li,Yong-Jun Li,Ming-Long Ma,Guo-Liang Shi,Jia-Wei YuanState Key Laboratory for Nonferrous Metals and Process,General Research Institute for Nonferrous Metals摘 要:The corrosion behaviors of T5(225℃,6.5 h)and T6(460℃,2 h + 225℃,12 h) peak-aged......
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of 7.9% obtained in the peak-aged alloy.The strengthening mechanisms of the alloy in different states are discussed.Grain boundary and precipitation strengthening are the main strengthening mechanisms for the peak-aged alloy.关键词:......
of 7.9% obtained in the peak-aged alloy.The strengthening mechanisms of the alloy in different states are discussed.Grain boundary and precipitation strengthening are the main strengthening mechanisms for the peak-aged alloy.关键词:......
of the T1 phase and the phase interface characteristics were studied. The microstructures of thermo-mechanical treated 2197 Al-Li alloy for under-aged and peak-aged states were observed by high resolution...′ phases number reduce at peak-aged state, while the main phase of peak-aged 2197 alloy is T1 phase with the size of 50-150 nm. The T1 phase grows up by the dissolving of δ′ phase. The end of T1 phase......
and develops and its volume fraction increases with increasing ageing time.Tensile test showed that the peak-aged alloy exhibits similar yield and ultimate tensile strengths and elongation to failure... temperature strengths of the peak-aged alloy are attributed to the LPSO phase strengthening and the grain refinement strengthening,and the role of the LPSO strengthening is related to not only its amount......
. The strength of peak-aged Al–Mg–Si–Cu alloys was enhanced by Ag addition because of the high density of β″-and L-phase age-hardening precipitates. The corrosion performance of the Al–Mg–Si–Cu alloy is closely related to the aging conditions and is independent of the Ag content. The IGC susceptibility is serious in the peak-aged alloy because of the continuous distribution of Cu-rich Q-phase......
that an increment in ultimate tensile strength of ~46 MPa and ~ 40 MPa was yielded in peak-aged TXA322 and TXA329 alloys, while no obvious variations in UTS were present in peak-aged TXA324 alloy...="ChDivSummary" name="ChDivSummary">This article aims to explore the age hardening responses of both as-extruded and as-aged Mg-2.5 Sn-1.5 Ca-x Al alloys(x = 2.0, 4.0 and 9.0 wt%, termed TXA322, TXA324......
. The results show that the fracture mode can be generally described as ductile transgranular fracture in as-extruded condition and intergranular fracture in peak-aged condition. In as-extruded condition... fracture occurs in peak-aged condition. Key words: Mg-Gd-Y-Zr alloy; second phases; microstructure; fracture; tensile properties 1 Introduction Lightweight magnesium alloys have attracted increasing......
°C, thereby reducing the peak aging time to 16 h. GPI and GPII are the two types of zones that are major precipitates for the alloy under peak-aged condition. The precipitation sequence for the alloy......
