Yun Luo
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View article: Degradation of cyanide contaminants in tailing residues by persulfate-based advanced oxidation processes: Coupling effects of alkali and heat
Degradation of cyanide contaminants in tailing residues by persulfate-based advanced oxidation processes: Coupling effects of alkali and heat Open
Cyanide tailings (CTs), hazardous solid waste from gold extraction, demand urgent detoxification to mitigate long-term environmental risks. This study develops an advanced oxidation process (AOP) combining persulfate, alkali, and heat (PDS…
View article: LEAD: Iterative Data Selection for Efficient LLM Instruction Tuning
LEAD: Iterative Data Selection for Efficient LLM Instruction Tuning Open
Instruction tuning has emerged as a critical paradigm for improving the capabilities and alignment of large language models (LLMs). However, existing iterative model-aware data selection methods incur significant computational overhead, as…
View article: Factors Controlling Stress Sensitivity of Shale Oil Reservoirs: Mineral Composition and Mechanical Properties
Factors Controlling Stress Sensitivity of Shale Oil Reservoirs: Mineral Composition and Mechanical Properties Open
Shale oil reservoirs are dense and characterized by ultra-low porosity and ultra-low permeability, which are usually developed effectively by horizontal wells and large-scale volume fracturing.However, with the continuous advancement of th…
View article: A Novel Fracturing Fluid with High-Temperature Resistance for Ultra-Deep Reservoirs
A Novel Fracturing Fluid with High-Temperature Resistance for Ultra-Deep Reservoirs Open
Ultra-deep reservoirs play an important role at present in fossil energy exploitation.Due to the related high temperature, high pressure, and high formation fracture pressure, however, methods for oil well stimulation do not produce satisf…
View article: Hardening Behavior and Model of a 316L Sheet Considering Macro and Micro Size Effects
Hardening Behavior and Model of a 316L Sheet Considering Macro and Micro Size Effects Open
316L stainless steel is often used as the metal bipolar plate, which is a key component of fuel cells. For the thinner metal bipolar plates, the mechanical properties may be different for different specimen sizes. In this paper, the mechan…
View article: Fabrication and mechanical properties of three-dimensional enhanced TiAl/GH3536 hetero-honeycomb sandwich structure
Fabrication and mechanical properties of three-dimensional enhanced TiAl/GH3536 hetero-honeycomb sandwich structure Open
The mechanical properties of honeycomb sandwich structures are improved using topological-reinforcement and material-strengthening. This study introduces a novel type of TiAl/GH3536 hetero-honeycomb sandwich structure, called the enhanced …
View article: Flow Field and Gas Field Distribution of Non-Submerged Cavitation Water Jet Based on Dual-Nozzle with Concentric Configuration
Flow Field and Gas Field Distribution of Non-Submerged Cavitation Water Jet Based on Dual-Nozzle with Concentric Configuration Open
Cavitation water jet peening is an efficient and green surface treatment technology. The dual-nozzle can realize a cavitation water jet in air (non-submerged condition), which can be used for the surface treatment of large structures. The …
View article: Effects of a cooling channel on the creep damage and failure probability of planar solid oxide fuel cells
Effects of a cooling channel on the creep damage and failure probability of planar solid oxide fuel cells Open
A solid oxide fuel cell (SOFC) is an all-solid-state chemical power generation device that converts chemical energy into electrical energy in an efficient and environmentally friendly way in medium- and high-temperature environments. Howev…
View article: A Uniformed Calculation Criterion on Heat Band Width of Local PWHT on Welded Joint with Dissimilar Thickness
A Uniformed Calculation Criterion on Heat Band Width of Local PWHT on Welded Joint with Dissimilar Thickness Open
Local post-weld heat treatment is used to reduce welding residual stresses. The existing standards have great differences in the selection of the width of the heated band, and the heating width, as an important control parameter of the loc…
View article: High accuracy and efficiency calculation model for predicting the reduction of residual stress on large pressure vessels by ultrasonic impact surface treatment
High accuracy and efficiency calculation model for predicting the reduction of residual stress on large pressure vessels by ultrasonic impact surface treatment Open
Ultrasonic impact treatment (UIT) is a new surface strengthening method to reduce the residual stresses on large pressure vessels induced by surface and repair welding. An accurate and high efficiency calculation model is the key to accura…
View article: NUMERICAL SIMULATION AND RESEARCH ON WELDING RESIDUAL STRESS OF BOX - TYPE STEEL STRUCTURE
NUMERICAL SIMULATION AND RESEARCH ON WELDING RESIDUAL STRESS OF BOX - TYPE STEEL STRUCTURE Open
The welding residual stress of the box-plate steel structure is studied in this paper. Q235B steel and Q345B steel are generally used in box plate assembly steel structures, so this paper focuses on the welding residual stress of these two…
View article: FINITE ELEMENT ANALYSIS ON BEHAVIOR OF HCFHST MIDDLE LONG COLUMNS WITH INNER I-SHAPED CFRP UNDER AXIAL LOAD
FINITE ELEMENT ANALYSIS ON BEHAVIOR OF HCFHST MIDDLE LONG COLUMNS WITH INNER I-SHAPED CFRP UNDER AXIAL LOAD Open
In this paper, the behavior of high-strength concrete filled high-strength square steel tube (HCFHST) middle long columns with inner I-shaped CFRP profile under axial load was studied. The finite element analysis models were established by…
View article: LOCAL BUCKLING (WRINKLING) OF PROFILED METAL-FACED INSULATING SANDWICH PANELS – A PARAMETRIC STUDY
LOCAL BUCKLING (WRINKLING) OF PROFILED METAL-FACED INSULATING SANDWICH PANELS – A PARAMETRIC STUDY Open
This study aims to investigate the effects of various parameters including the height of the profiling region, spacing of profiling ribs, length of the panel, thickness and modulus of the foam core, and thickness of the profiled face sheet…
View article: FINITE ELEMENT MODELING OF CONCRETE-FILLED STAINLESS-CLAD BIMETALLIC STEEL SQUARE TUBES UNDER AXIAL COMPRESSION
FINITE ELEMENT MODELING OF CONCRETE-FILLED STAINLESS-CLAD BIMETALLIC STEEL SQUARE TUBES UNDER AXIAL COMPRESSION Open
As an advanced high-performance bimetallic steel, metallurgically bonded stainless-clad (SC) bimetallic steel has been increasingly used in engineering structures in recent years. Its combination use with concrete in composite structures i…
View article: ELASTIC BUCKLING OF OUTSTAND STAINLESS-CLAD BIMETALLIC STEEL PLATES SUBJECTED TO UNIAXIAL COMPRESSION
ELASTIC BUCKLING OF OUTSTAND STAINLESS-CLAD BIMETALLIC STEEL PLATES SUBJECTED TO UNIAXIAL COMPRESSION Open
The application of stainless-clad (SC) bimetallic steel in various conditions such as offshore and marine environment requires members designed in different cross-sectional shapes, which consist of both internal and outstand elements. To f…
View article: COMPARATIVE STUDY ON STABILITY OF WELDED AND HOT-ROLLED Q420 L300×30 COLUMNS
COMPARATIVE STUDY ON STABILITY OF WELDED AND HOT-ROLLED Q420 L300×30 COLUMNS Open
More heavy latticed steel transmission towers are being proposed and constructed in response to the increasing power demand of the rapid developments in China; new steel sections, Q420 L300×30 equal-leg angles, both welded and hot-rolled, …
View article: Integrated Design Optimization for Long Span Steel Transfer Truss at Redevelopment of Hong Kong Kwong Wah Hospital
Integrated Design Optimization for Long Span Steel Transfer Truss at Redevelopment of Hong Kong Kwong Wah Hospital Open
Long-span steel trusses are increasingly used in high-rise buildings to replace reinforced concrete thick transfer plate due to light weight and high load-bearing capacity. To support multi-stories above the steel transfer truss, a compreh…
View article: EXPERIMENTAL STUDY ON WELDING RESIDUAL STRESS OF TWO-WAY STIFFENED STEEL PLATES
EXPERIMENTAL STUDY ON WELDING RESIDUAL STRESS OF TWO-WAY STIFFENED STEEL PLATES Open
The immersed tunnel of Shenzhen-Zhongshan Link Project adopts the steel shell-concrete (SSC) composite structure, in which the two-way stiffened steel plate is applied as the surface of steel shell. Since the steel plate stiffened in two-w…
View article: Optimization Study of Post-Weld Heat Treatment for 12Cr1MoV Pipe Welded Joint
Optimization Study of Post-Weld Heat Treatment for 12Cr1MoV Pipe Welded Joint Open
In order to clarify the role of different post-weld heat treatment processes in the manufacturing process, welding tests, post-weld heat treatment tests, and finite element analysis (FEA) are carried out for 12C1MoV steel pipes. The simula…
View article: Investigation the Creep Damage and Life Prediction of the Brazed Joint
Investigation the Creep Damage and Life Prediction of the Brazed Joint Open
涂善东 3 罗 云 2 蒋文春 2 张显程 3 (1.中国石油大学(华东)山东省油气储运安全重点实验室 青岛 266580； 2. 中国石油大学(华东)新能源学院 青岛 266580 3. 华东理工大学机械与动力工程学院 上海 200237) 摘要：钎焊连接技术被广泛应用于航空航天、核电等领域的高效紧凑换热器制造中。高温高压工作条件下，
View article: Research Progress on the Calculation, Measurement and Control of Welding Residual Stress
Research Progress on the Calculation, Measurement and Control of Welding Residual Stress Open
华东)新能源学院 青岛 266580； 2. 中国石油大学(华东)重质油国家重点实验室 青岛 266580； 3. 华东理工大学机械与动力工程学院 上海 200237)
View article: A Study on Microstructure, Residual Stresses and Stress Corrosion Cracking of Repair Welding on 304 Stainless Steel: Part II-Effects of Reinforcement Height
A Study on Microstructure, Residual Stresses and Stress Corrosion Cracking of Repair Welding on 304 Stainless Steel: Part II-Effects of Reinforcement Height Open
The repair reinforcement height is an important parameter of repair welding, which may have a great influence on structural integrity. In this paper, the effects of repair welding reinforcement height on the microstructure, microhardness, …
View article: A Study on Microstructure, Residual Stresses and Stress Corrosion Cracking of Repair Welding on 304 Stainless Steel: Part I-Effects of Heat Input
A Study on Microstructure, Residual Stresses and Stress Corrosion Cracking of Repair Welding on 304 Stainless Steel: Part I-Effects of Heat Input Open
In this paper, the effect of repair welding heat input on microstructure, residual stresses, and stress corrosion cracking (SCC) sensitivity were investigated by simulation and experiment. The results show that heat input influences the mi…