The Experts below are selected from a list of 11721 Experts worldwide ranked by ideXlab platform
Wenya Peng - One of the best experts on this subject based on the ideXlab platform.
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microstructure and mechanical properties of ultrasonic pulse frequency tungsten inert gas welded ti 22al 25nb at alloy Butt Joint
Journal of Materials Processing Technology, 2018Co-Authors: Ling Shao, Amit Datye, Haitao Zhao, Miles Petterson, Wenya PengAbstract:Abstract Microstructural observations of cross sections of Butt Joints of Ti-22Al-25Nb (at.%) alloy manufactured using ultrasonic pulse frequency tungsten inert gas welding method at different welding parameters without and with welding wire, the Butt Joint at 50 KHz pulse frequency with welding wire has the largest equiaxed crystal zone, finest columnar crystals, and improves damage of dendritic crystals and overburning. The tensile strength, yield strength and elongation of Butt Joint at 50 KHz welding frequency with welding wire are the highest, compared with those of Butt Joints at other welding parameters without welding wire, and the fracture of it is ductile fracture mode of dimples. Further, fusion zone composed of α2 + β/B2 two phases and heat affected zone composed of α2 + O + β/B2 three phases in the Butt Joint having the highest tensile strength are determined using X-ray diffraction technology. In this Butt Joint, the microhardness of heat affected zone is the highest, followed by that of base material, fusion zone lowest.
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Microstructure and mechanical properties of ultrasonic pulse frequency tungsten inert gas welded Ti-22Al-25Nb (at.%) alloy Butt Joint
Journal of Materials Processing Technology, 2018Co-Authors: Ling Shao, Amit Datye, Haitao Zhao, Miles Petterson, Wenya PengAbstract:Abstract Microstructural observations of cross sections of Butt Joints of Ti-22Al-25Nb (at.%) alloy manufactured using ultrasonic pulse frequency tungsten inert gas welding method at different welding parameters without and with welding wire, the Butt Joint at 50 KHz pulse frequency with welding wire has the largest equiaxed crystal zone, finest columnar crystals, and improves damage of dendritic crystals and overburning. The tensile strength, yield strength and elongation of Butt Joint at 50 KHz welding frequency with welding wire are the highest, compared with those of Butt Joints at other welding parameters without welding wire, and the fracture of it is ductile fracture mode of dimples. Further, fusion zone composed of α2 + β/B2 two phases and heat affected zone composed of α2 + O + β/B2 three phases in the Butt Joint having the highest tensile strength are determined using X-ray diffraction technology. In this Butt Joint, the microhardness of heat affected zone is the highest, followed by that of base material, fusion zone lowest.
Ling Shao - One of the best experts on this subject based on the ideXlab platform.
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microstructure and mechanical properties of ultrasonic pulse frequency tungsten inert gas welded ti 22al 25nb at alloy Butt Joint
Journal of Materials Processing Technology, 2018Co-Authors: Ling Shao, Amit Datye, Haitao Zhao, Miles Petterson, Wenya PengAbstract:Abstract Microstructural observations of cross sections of Butt Joints of Ti-22Al-25Nb (at.%) alloy manufactured using ultrasonic pulse frequency tungsten inert gas welding method at different welding parameters without and with welding wire, the Butt Joint at 50 KHz pulse frequency with welding wire has the largest equiaxed crystal zone, finest columnar crystals, and improves damage of dendritic crystals and overburning. The tensile strength, yield strength and elongation of Butt Joint at 50 KHz welding frequency with welding wire are the highest, compared with those of Butt Joints at other welding parameters without welding wire, and the fracture of it is ductile fracture mode of dimples. Further, fusion zone composed of α2 + β/B2 two phases and heat affected zone composed of α2 + O + β/B2 three phases in the Butt Joint having the highest tensile strength are determined using X-ray diffraction technology. In this Butt Joint, the microhardness of heat affected zone is the highest, followed by that of base material, fusion zone lowest.
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Microstructure and mechanical properties of ultrasonic pulse frequency tungsten inert gas welded Ti-22Al-25Nb (at.%) alloy Butt Joint
Journal of Materials Processing Technology, 2018Co-Authors: Ling Shao, Amit Datye, Haitao Zhao, Miles Petterson, Wenya PengAbstract:Abstract Microstructural observations of cross sections of Butt Joints of Ti-22Al-25Nb (at.%) alloy manufactured using ultrasonic pulse frequency tungsten inert gas welding method at different welding parameters without and with welding wire, the Butt Joint at 50 KHz pulse frequency with welding wire has the largest equiaxed crystal zone, finest columnar crystals, and improves damage of dendritic crystals and overburning. The tensile strength, yield strength and elongation of Butt Joint at 50 KHz welding frequency with welding wire are the highest, compared with those of Butt Joints at other welding parameters without welding wire, and the fracture of it is ductile fracture mode of dimples. Further, fusion zone composed of α2 + β/B2 two phases and heat affected zone composed of α2 + O + β/B2 three phases in the Butt Joint having the highest tensile strength are determined using X-ray diffraction technology. In this Butt Joint, the microhardness of heat affected zone is the highest, followed by that of base material, fusion zone lowest.
Paul G. Maropoulos - One of the best experts on this subject based on the ideXlab platform.
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Prediction of welding distortion in Butt Joint of thin plates
Materials and Design, 2009Co-Authors: H. Long, Ducatel Gery, Axel Carlier, Paul G. MaropoulosAbstract:This paper investigates distortions and residual stresses induced in Butt Joint of thin plates using Metal Inert Gas welding. A moving distributed heat source model based on Goldak's double-ellipsoid heat flux distribution is implemented in Finite Element (FE) simulation of the welding process. Thermo-elastic-plastic FE methods are applied to modelling thermal and mechanical behaviour of the welded plate during the welding process. Prediction of temperature variations, fusion zone and heat affected zone as well as longitudinal and transverse shrinkage, angular distortion, and residual stress is obtained. FE analysis results of welding distortions are compared with existing experimental and empirical predictions. The welding speed and plate thickness are shown to have considerable effects on welding distortions and residual stresses. © 2009 Elsevier Ltd. All rights reserved.
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effects of welding speed energy input and heat source distribution on temperature variations in Butt Joint welding
Journal of Materials Processing Technology, 2005Co-Authors: Ducatel Gery, H. Long, Paul G. MaropoulosAbstract:In this paper, a moving heat source model based on Goldak's double-ellipsoid heat flux distribution is presented. A C++ programme was developed in order to implement heat inputs into finite element thermal simulation of the plate Butt Joint welding. The transient temperature distributions and temperature variations of the welded plates during welding were predicted and the fusion zone and heat affected zone were obtained. Effects of the heat source distribution, energy input and welding speed on temperature changes were further investigated.
Miles Petterson - One of the best experts on this subject based on the ideXlab platform.
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microstructure and mechanical properties of ultrasonic pulse frequency tungsten inert gas welded ti 22al 25nb at alloy Butt Joint
Journal of Materials Processing Technology, 2018Co-Authors: Ling Shao, Amit Datye, Haitao Zhao, Miles Petterson, Wenya PengAbstract:Abstract Microstructural observations of cross sections of Butt Joints of Ti-22Al-25Nb (at.%) alloy manufactured using ultrasonic pulse frequency tungsten inert gas welding method at different welding parameters without and with welding wire, the Butt Joint at 50 KHz pulse frequency with welding wire has the largest equiaxed crystal zone, finest columnar crystals, and improves damage of dendritic crystals and overburning. The tensile strength, yield strength and elongation of Butt Joint at 50 KHz welding frequency with welding wire are the highest, compared with those of Butt Joints at other welding parameters without welding wire, and the fracture of it is ductile fracture mode of dimples. Further, fusion zone composed of α2 + β/B2 two phases and heat affected zone composed of α2 + O + β/B2 three phases in the Butt Joint having the highest tensile strength are determined using X-ray diffraction technology. In this Butt Joint, the microhardness of heat affected zone is the highest, followed by that of base material, fusion zone lowest.
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Microstructure and mechanical properties of ultrasonic pulse frequency tungsten inert gas welded Ti-22Al-25Nb (at.%) alloy Butt Joint
Journal of Materials Processing Technology, 2018Co-Authors: Ling Shao, Amit Datye, Haitao Zhao, Miles Petterson, Wenya PengAbstract:Abstract Microstructural observations of cross sections of Butt Joints of Ti-22Al-25Nb (at.%) alloy manufactured using ultrasonic pulse frequency tungsten inert gas welding method at different welding parameters without and with welding wire, the Butt Joint at 50 KHz pulse frequency with welding wire has the largest equiaxed crystal zone, finest columnar crystals, and improves damage of dendritic crystals and overburning. The tensile strength, yield strength and elongation of Butt Joint at 50 KHz welding frequency with welding wire are the highest, compared with those of Butt Joints at other welding parameters without welding wire, and the fracture of it is ductile fracture mode of dimples. Further, fusion zone composed of α2 + β/B2 two phases and heat affected zone composed of α2 + O + β/B2 three phases in the Butt Joint having the highest tensile strength are determined using X-ray diffraction technology. In this Butt Joint, the microhardness of heat affected zone is the highest, followed by that of base material, fusion zone lowest.
Haitao Zhao - One of the best experts on this subject based on the ideXlab platform.
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microstructure and mechanical properties of ultrasonic pulse frequency tungsten inert gas welded ti 22al 25nb at alloy Butt Joint
Journal of Materials Processing Technology, 2018Co-Authors: Ling Shao, Amit Datye, Haitao Zhao, Miles Petterson, Wenya PengAbstract:Abstract Microstructural observations of cross sections of Butt Joints of Ti-22Al-25Nb (at.%) alloy manufactured using ultrasonic pulse frequency tungsten inert gas welding method at different welding parameters without and with welding wire, the Butt Joint at 50 KHz pulse frequency with welding wire has the largest equiaxed crystal zone, finest columnar crystals, and improves damage of dendritic crystals and overburning. The tensile strength, yield strength and elongation of Butt Joint at 50 KHz welding frequency with welding wire are the highest, compared with those of Butt Joints at other welding parameters without welding wire, and the fracture of it is ductile fracture mode of dimples. Further, fusion zone composed of α2 + β/B2 two phases and heat affected zone composed of α2 + O + β/B2 three phases in the Butt Joint having the highest tensile strength are determined using X-ray diffraction technology. In this Butt Joint, the microhardness of heat affected zone is the highest, followed by that of base material, fusion zone lowest.
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Microstructure and mechanical properties of ultrasonic pulse frequency tungsten inert gas welded Ti-22Al-25Nb (at.%) alloy Butt Joint
Journal of Materials Processing Technology, 2018Co-Authors: Ling Shao, Amit Datye, Haitao Zhao, Miles Petterson, Wenya PengAbstract:Abstract Microstructural observations of cross sections of Butt Joints of Ti-22Al-25Nb (at.%) alloy manufactured using ultrasonic pulse frequency tungsten inert gas welding method at different welding parameters without and with welding wire, the Butt Joint at 50 KHz pulse frequency with welding wire has the largest equiaxed crystal zone, finest columnar crystals, and improves damage of dendritic crystals and overburning. The tensile strength, yield strength and elongation of Butt Joint at 50 KHz welding frequency with welding wire are the highest, compared with those of Butt Joints at other welding parameters without welding wire, and the fracture of it is ductile fracture mode of dimples. Further, fusion zone composed of α2 + β/B2 two phases and heat affected zone composed of α2 + O + β/B2 three phases in the Butt Joint having the highest tensile strength are determined using X-ray diffraction technology. In this Butt Joint, the microhardness of heat affected zone is the highest, followed by that of base material, fusion zone lowest.
