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2019110 · As high-strength for traction beam of high-speed rail, the fatigue strength of A7N01 aluminum alloy is particularly critical for its industrial application. In order to
contact202161 · A7N01 (Al-Zn-Mg) aluminum alloy is the most commonly used aluminum alloy in the metro vehicle industry [14,15]. In the actual production process, interfacial
contact2019110 · Three A7N01 aluminum alloys with different Si contents (0.01%wt. Si, 0.1%wt. Si and 0.38%wt. Si) were investigated in this work. The as-cast aluminum alloys
contact201913 · A7N01 aluminum alloy is widely used in rail transit industry due to its excellent comprehensive mechanical properties. However, due to its sensitivity to stress
contact202332 · In this paper, a self-designed low copper 7A48 wire containing scandium was used as filler material for metal inert gas (MIG) welding of 4 mm thick A7N01-T4
contactThe influence of addition of Mg and Ti on the corrosion behavior of Al-alloy A7N01 was studied by means of electrochemical corrosion test and stress corrosion cracking test, as
contactThe A7N01 aluminum alloy was welded by MIG welding in test, and the microstructure and mechanical property of joint were investigated. The results of experimentation show that
contact202161 · In this paper, an external magnetic field was introduced to resistance spot welding (RSW) to improve the weldability of A7N01 aluminum alloy. Comparative studies of the macro- and micro-structures, microhardness, and the static and dynamic mechanical properties between welds produced by traditional RSW and magnetically assisted RSW
contact2019110 · Experimental procedures. Three A7N01 aluminum alloys with different Si contents (0.01%wt. Si, 0.1%wt. Si and 0.38%wt. Si) were investigated in this work. The as-cast aluminum alloys were drawn into rods with a diameter of 14 mm. All the bars were cut into rods of 200 mm in length and annealed at 470 °C for 24 h to achieve homogeneous ...
contact2012121 · Abstract. Fatigue characteristics of A7N01 aluminium alloy welded joint were investigated and a fatigue crack initiation life-based model was proposed. The difference of fatigue crack initiation life among base metal, weld metal and heat affected zone (HAZ) is slight. Furthermore, the ratio of fatigue crack initiation life ( Ni) to fatigue life ...
contactThe welding residual stress has different effects on the mechanical properties of aluminum alloy welded joints, such as size stability, fatigue strength and stress corrosion cracking. Therefore, it is very important to evaluate the welding residual stress accurately. In this paper, the residual stress of A7N01 aluminum alloy welded joints was measured by X-ray
contact2016822 · Residual stress measurement and control are highly important for the safety of structures of high-speed trains, which is critical for the structure design. The longitudinal critically refracted wave technology is the most widely used method in measuring residual stress with ultrasonic method, but its accuracy is strongly related to
contact201913 · A7N01 aluminum alloy is widely used in rail transit industry due to its excellent comprehensive mechanical properties. However, due to its sensitivity to stress corrosion cracking (SCC), especially in hydrogen-containing moisture environment, the mechanical properties of hydrogen-charged A7N01 aluminum alloy friction stir welding
contact2018418 · 7xxx series aluminum alloys are widely used in railway transportation and aerospace industries for their low density and high strength [1, 2].However, A7N01 aluminum alloys suffered from stress corrosion cracking (SCC) and pitting corrosion frequently as the main material of the key components in the high-speed trains.
contactThereinto, high-strength A7N01-T4 aluminum alloy is the key structural material for high-speed train body, car body, and the most ideal medium strength welding structural material [6]. So it is ...
contactInfluence of Mg and Ti on Corrosion Behavior of A7N01 Al-alloy Cui HUANG 1, Shufang ZHANG 2, Jie HU 2, Xin WANG 3, Xiaomin WANG 1 1 School of Life Science and Engineering, Southwest Jiaotong University, Chengdu , China 2 School of Material Science and Engineering, Southwest Jiaotong University, Chengdu , China 3
contact201913 · A7N01 aluminum alloy is widely used in rail transit industry due to its excellent comprehensive mechanical properties. However, due to its sensitivity to stress corrosion cracking (SCC ...
contact2012121 · Abstract. Fatigue characteristics of A7N01 aluminium alloy welded joint were investigated and a fatigue crack initiation life-based model was proposed. The difference of fatigue crack initiation life among base metal, weld metal and heat affected zone (HAZ) is slight. Furthermore, the ratio of fatigue crack initiation life ( Ni) to fatigue life ...
contact201639 · In this paper, an experimental study of laser-metal inert gas (MIG) hybrid welding of A7N01-T6 aluminum alloy in butt joint configuration was carried out. Visual examination and optical microscope were utilized to study the macro profile and microstructure, while mechanical properties of the welds were evaluated with the help of
contactThe welding residual stress has different effects on the mechanical properties of aluminum alloy welded joints, such as size stability, fatigue strength and stress corrosion cracking. Therefore, it is very important to evaluate the welding residual stress accurately. In this paper, the residual stress of A7N01 aluminum alloy welded joints was measured by X-ray
contact202111 · The A7N01-T5 aluminum alloy plates with a thickness of 12 mm were welded with the ER5356 and ER5087 welding wires, respectively, by the method of Metal Inert Gas (MIG) welding.
contact2016822 · Residual stress measurement and control are highly important for the safety of structures of high-speed trains, which is critical for the structure design. The longitudinal critically refracted wave technology is the most widely used method in measuring residual stress with ultrasonic method, but its accuracy is strongly related to
contactThereinto, high-strength A7N01-T4 aluminum alloy is the key structural material for high-speed train body, car body, and the most ideal medium strength welding structural material [6]. So it is ...
contactA7N01 aluminum alloy with the thickness of 10mm is welded using fiber laser with filler wire, the microstructures and mechanical properties of the welding joints are observed and analyzed by microhardness and tensile
contactIn this paper, the thermal cycle treatment of A7N01-T5 aluminum alloy was carried out with the peak temperatures of 480, 420, 320 and 260 °C, and the thermal simulation specimens with four kinds ...
contactThe A7N01 aluminum alloy was welded by MIG welding in test, and the microstructure and mechanical property of joint were investigated. The results of experimentation show that the feature of the A7N01 aluminum alloy MIG welding joint is perfect with a gentle transition. The microstructure of fusion metal in A7N01 joint is as-cast grain. The microstructure of
contact201517 · ：A7N01 ， ， ...
contact2017314 · Mechanical properties of hybrid laser-metal-inert-gas-welded A7N01-T5 aluminum alloy joints were studied by using local samples that were extracted fr…
contact201639 · In this paper, an experimental study of laser-metal inert gas (MIG) hybrid welding of A7N01-T6 aluminum alloy in butt joint configuration was carried out. Visual examination and optical microscope were utilized to study the macro profile and microstructure, while mechanical properties of the welds were evaluated with the help of
contact202111 · The A7N01-T5 aluminum alloy plates with a thickness of 12 mm were welded with the ER5356 and ER5087 welding wires, respectively, by the method of Metal Inert Gas (MIG) welding.
contact2016822 · Residual stress measurement and control are highly important for the safety of structures of high-speed trains, which is critical for the structure design. The longitudinal critically refracted wave technology is the most widely used method in measuring residual stress with ultrasonic method, but its accuracy is strongly related to
contactThe welding residual stress has different effects on the mechanical properties of aluminum alloy welded joints, such as size stability, fatigue strength and stress corrosion cracking. Therefore, it is very important to evaluate the welding residual stress accurately. In this paper, the residual stress of A7N01 aluminum alloy welded joints was measured by X-ray
contact201085 · The effect of strain hardening and strain softening behavior of flow stress changing with temperature on welding residual stress, plastic strain and welding distortion of A7N01-T4 aluminum alloy was studied by finite simulation method. The simulation results show that the weld seam undergoes strain hardening in the temperature range of
contactThereinto, high-strength A7N01-T4 aluminum alloy is the key structural material for high-speed train body, car body, and the most ideal medium strength welding structural material [6]. So it is ...
contactThe A7N01 aluminum alloy was welded by MIG welding in test, and the microstructure and mechanical property of joint were investigated. The results of experimentation show that the feature of the A7N01 aluminum alloy MIG welding joint is perfect with a gentle transition. The microstructure of fusion metal in A7N01 joint is as-cast grain. The microstructure of
contactIn this paper, the thermal cycle treatment of A7N01-T5 aluminum alloy was carried out with the peak temperatures of 480, 420, 320 and 260 °C, and the thermal simulation specimens with four kinds ...
contactA7N01 aluminum alloy with the thickness of 10mm is welded using fiber laser with filler wire, the microstructures and mechanical properties of the welding joints are observed and analyzed by microhardness and tensile
contact