Tiejun Ma
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View article: A review of advanced acoustic‐chemical‐optical partial discharge monitoring techniques for ultra‐high‐voltage gas‐insulated equipment
A review of advanced acoustic‐chemical‐optical partial discharge monitoring techniques for ultra‐high‐voltage gas‐insulated equipment Open
Partial discharge (PD) detection is considered one of the most crucial and effective methods for identifying defects in electrical equipment. Consequently, investigating advanced and efficient PD monitoring techniques is essential for the …
View article: Microstructure Evolution And Interface Morphology Optimization in Synergistic Double-Sided Probeless Friction Stir Spot Welding of Dissimilar 7075/6061 Aluminum Alloys
Microstructure Evolution And Interface Morphology Optimization in Synergistic Double-Sided Probeless Friction Stir Spot Welding of Dissimilar 7075/6061 Aluminum Alloys Open
View article: Investigation of Material Flow Mechanisms and Interface Bonding in Probeless Friction Stir Spot Welding of 2198-T8 Aluminum-Lithium Alloy
Investigation of Material Flow Mechanisms and Interface Bonding in Probeless Friction Stir Spot Welding of 2198-T8 Aluminum-Lithium Alloy Open
View article: Microstructure Evolution And Interface Morphology Optimization in Synergistic Double-Sided Probeless Friction Stir Spot Welding of Dissimilar 7075/6061 Aluminum Alloys
Microstructure Evolution And Interface Morphology Optimization in Synergistic Double-Sided Probeless Friction Stir Spot Welding of Dissimilar 7075/6061 Aluminum Alloys Open
View article: Forming control and the relationship between microstructure and mechanical property in TIG-assisted friction stir welded joint of Ti-6Al-3Nb-2Zr-1Mo titanium alloy
Forming control and the relationship between microstructure and mechanical property in TIG-assisted friction stir welded joint of Ti-6Al-3Nb-2Zr-1Mo titanium alloy Open
In this paper, T-joints of Ti-6Al-3Nb-2Zr-1Mo titanium alloy were joined with friction stir welding, and microstructure evolution and forming mechanism were studied. The effect of using tungsten inert gas welding to heat additionally the F…
View article: Effect of continuous and random multi-particle impaction on the aluminum coating and copper substrate in cold spraying
Effect of continuous and random multi-particle impaction on the aluminum coating and copper substrate in cold spraying Open
In this study, the process of multi-particle cold spraying has been numerically simulated and compared with the actual cold spraying results. The results show that in the continuous multi-particle models, the maximum depths of compressive …
View article: Particle deformation and coating deposition behavior in cold spray additive manufactured aluminum deposit on copper substrate by simulation and experiment
Particle deformation and coating deposition behavior in cold spray additive manufactured aluminum deposit on copper substrate by simulation and experiment Open
In this study, the particle deformation and coating deposition behavior in cold spray additive manufactured (CSAM) aluminum deposit on copper substrate were studied by simulation and experiment. The mechanisms of single particle impact dep…
View article: The effect of inclusions and pores on creep crack propagation of linear friction welded joints of GH4169 superalloy
The effect of inclusions and pores on creep crack propagation of linear friction welded joints of GH4169 superalloy Open
Superalloy has become the key material in components of blisks for aero-engines produced by linear friction welding. However, during the long-term service of the blisks, stress rupture occurs on the blisk under long-term creep. In this stu…
View article: Plastic flow and interfacial bonding behaviors of embedded linear friction welding process: Numerical simulation combined with thermo-physical experiment
Plastic flow and interfacial bonding behaviors of embedded linear friction welding process: Numerical simulation combined with thermo-physical experiment Open
In this study, a new linear friction welding (LFW) process, embedded LFW process, was put forward, which was mainly applied to combination manufacturing of long or overlong load-carrying titanium alloy structural components in aircraft. Th…
View article: Multi-scale analyses of phase transformation mechanisms and hardness in linear friction welded Ti17(α + β)/Ti17(β) dissimilar titanium alloy joint
Multi-scale analyses of phase transformation mechanisms and hardness in linear friction welded Ti17(α + β)/Ti17(β) dissimilar titanium alloy joint Open
The Ti17(α + β)-Ti17(β) dual alloy-dual property blisk produced using Linear Friction Welding (LFW) is considered as high-performance component in advanced aeroengine. However, up to now, microstructure evolution and relationship between m…
View article: Investigation of microstructure and mechanical properties of GH4169 superalloy joint produced by linear friction welding
Investigation of microstructure and mechanical properties of GH4169 superalloy joint produced by linear friction welding Open
Linear friction welding (LFW) method is a solid-state manufacturing process. In the present study, GH4169 superalloy was welded using LFW method. Macro morphology and shortening of LFW GH4169 joints were investigated to understand the effe…
View article: Interfacial bonding mechanism of linear friction welded dissimilar Ti2AlNb–Ti60 joint: Grain intergrowth induced by combined effects of dynamic recrystallization, phase transformation and elemental diffusion
Interfacial bonding mechanism of linear friction welded dissimilar Ti2AlNb–Ti60 joint: Grain intergrowth induced by combined effects of dynamic recrystallization, phase transformation and elemental diffusion Open
The blisk composed of Ti2AlNb intermetallic alloy and Ti60 titanium alloy with its dual properties is considered as the ideal high-performance component in advanced aeroengines. There are incompatibilities at the interface during welding u…
View article: Thermo-physical simulation of deformation behavior and microstructure evolution for linear friction welding of near-β titanium alloy
Thermo-physical simulation of deformation behavior and microstructure evolution for linear friction welding of near-β titanium alloy Open
In order to better understand the interface bonding behavior of linear friction welding (LFW) of a near-β titanium alloy, the thermo-physical simulation for deformation behavior and microstructure evolution of a near-β TB2 titanium alloy w…
View article: Electrochemical detection of CEA and CA153 Lung Cancer Markers Based on ZnO/Porous Graphene Oxide Composite Biosensor
Electrochemical detection of CEA and CA153 Lung Cancer Markers Based on ZnO/Porous Graphene Oxide Composite Biosensor Open
View article: Optimizing the Integrity of Linear Friction Welded Ti2AlNb Alloys
Optimizing the Integrity of Linear Friction Welded Ti2AlNb Alloys Open
The knowledge of process parameters–weld integrity-aging treatments–tensile property relationship is of great concern for linear friction welded (LFWed) Ti2AlNb-based alloy and requires a systematic characterization. Thus, the Ti2AlNb-base…