A5026160150- Advanced Welding Techniques Analysis
- Titanium Alloys Microstructure and Properties
- Intermetallics and Advanced Alloy Properties
- Welding Techniques and Residual Stresses
- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
- Metal Forming Simulation Techniques
- High Temperature Alloys and Creep
- MXene and MAX Phase Materials
- Material Properties and Processing
- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- High-Temperature Coating Behaviors
- Advanced materials and composites
- Metallurgy and Material Forming
- Additive Manufacturing and 3D Printing Technologies
- Mechanical stress and fatigue analysis
- Hydrogen Storage and Materials
- Microstructure and Mechanical Properties of Steels
- Ammonia Synthesis and Nitrogen Reduction
- Particle Dynamics in Fluid Flows
- Mechanical Behavior of Composites
- Advanced ceramic materials synthesis
- Shape Memory Alloy Transformations
- Adhesion, Friction, and Surface Interactions
State Key Laboratory of Solidification Processing
2015-2024
Tsinghua University
2024
Northwestern Polytechnical University
2015-2024
Shandong University of Technology
2023
Beijing University of Technology
2018-2023
Chinese People's Liberation Army
2010
University of Toyama
2002-2004
The Ohio State University
2001-2003
Delft University of Technology
1999
Friction welding (FW) is a high quality, nominally solid-state joining process, which produces welds of structural integrity. Rotary friction (RFW) the most commonly used form FW, while linear (LFW) relatively new method being mainly for production integrally bladed disc (blisk) assemblies in aircraft engine industry. Numerous similar and dissimilar joints metallic materials have been welded with RFW LFW. In this review, current state understanding development LFW presented. Particular...
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 micro mechanical properties of LFWed β)/Ti17(β) dissimilar joint have not been thoroughly revealed. In this work, complex analyses the phase transformation mechanisms are conducted, transformations individual zones correlated their microhardness...
The blisk composed of Ti2AlNb intermetallic alloy and Ti60 titanium with its dual properties is considered as the ideal high-performance component in advanced aeroengines. There are incompatibilities at interface during welding using conventional fusion techniques like electron beam. In this work, dissimilar joint was successfully produced employing linear friction welding, a whose strength over that base metal obtained. intergrowth bonding mechanism promoted by combined effects dynamic...
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 joints were investigated to understand effect variables on geometric parameters such as joint shape size. Detailed microstructural mechanical property material microstructure well properties. Compared with raw material, grains are refined, tensile strength under two sets greater than that material.
Superalloy has become the key material in components of blisks for aero-engines produced by linear friction welding. However, during long-term service blisks, stress rupture occurs on blisk under creep. In this study, welded joints GH4169 superalloy were studied with experiments and numerical simulation. The Sin-Hyperbolic creep-damage constitutive model was established. Based compact tension specimen model, simulation crack propagation carried out, analyzing effect defects such as cracks,...
A finite element model based on software Abaqus/Explicit and experimentation was established to describe the probeless friction stir spot welding process of 2198-T8 aluminium alloy. An Arbitrary Lagrangian–Eulerian method adopted in this which Johnson–Cook equation used flow stress depending temperature, plastic strain rate. The experimental results revealed representative microstructure joint has three typical zones: zone, thermo mechanically affected zone heat zone. relationship between...
In this study, a new linear friction welding (LFW) process, embedded LFW was put forward, which mainly applied to combination manufacturing of long or overlong load-carrying titanium alloy structural components in aircraft. The interfacial plastic flow behavior and bonding mechanism process were investigated by developed coupling Eulerian-Lagrangian numerical model using software ABAQUS novel thermo-physical simulation method with designed hot compression specimen. addition, the formation...