Qunli Zhang
YOU?
Author Swipe
View article: Properties and Microstructure Evaluation of Laser-Welded TP347—TP904L High-Alloy, Stainless Steels Joints, Modified with 309L Filler
Properties and Microstructure Evaluation of Laser-Welded TP347—TP904L High-Alloy, Stainless Steels Joints, Modified with 309L Filler Open
This study presents the results of laser beam welding of dissimilar high-alloy super stainless steels. Differences in their thermal and mechanical properties pose significant challenges in manufacturing processes. The present work demonstr…
View article: Hybrid Laser Cleaning of Carbon Deposits on N52B30 Engine Piston Crowns: Multi-Objective Optimization via Response Surface Methodology
Hybrid Laser Cleaning of Carbon Deposits on N52B30 Engine Piston Crowns: Multi-Objective Optimization via Response Surface Methodology Open
Carbon deposits on the crown of engine pistons can markedly reduce combustion efficiency and shorten service life. Conventional cleaning techniques often fail to simultaneously ensure a high carbon removal efficiency and maintain optimal s…
View article: Effects of Pretreatment Processes on Grain Size and Wear Resistance of Laser-Induction Hybrid Phase Transformation Hardened Layer of 42CrMo Steel
Effects of Pretreatment Processes on Grain Size and Wear Resistance of Laser-Induction Hybrid Phase Transformation Hardened Layer of 42CrMo Steel Open
To address the issue of surface grain coarsening in laser-induction hybrid phase transformation of 42CrMo steel, this study investigated the effects of four pretreatment processes (quenching–tempering (QT), laser-induction quenching (LIQ),…
View article: Modeling and experimental validation of carbonation mechanism of ye’elimite-gypsum-water system
Modeling and experimental validation of carbonation mechanism of ye’elimite-gypsum-water system Open
Calcium sulfoaluminate cement is a promising low-carbon alternative to Portland cement, and the carbonation of its hydration products influences its mechanical performance. However, a comprehensive theoretical model describing its carbonat…
View article: Improvement of Micro-Hole Processing in SiCf/SiC Ceramic Matrix Composite Using Efficient Two-Step Laser Drilling
Improvement of Micro-Hole Processing in SiCf/SiC Ceramic Matrix Composite Using Efficient Two-Step Laser Drilling Open
SiCf/SiC ceramic matrix composite (CMC), a hard and brittle material, faces significant challenges in efficient and high-quality processing of small-sized shapes. To address these challenges, the nanosecond laser was used to process micro-…
View article: Deposition Characteristics and Mechanical Properties of WC/Stellite-6 Composite Coatings Prepared by Supersonic Laser Deposition
Deposition Characteristics and Mechanical Properties of WC/Stellite-6 Composite Coatings Prepared by Supersonic Laser Deposition Open
To fulfill the harsh surface demand for key industrial components, metal matrix composite coatings (MMC) with hard ceramic particles located in the metallic matrix have attracted considerable attention in recent years. In this paper, WC/St…
View article: Optimization of Laser-Induced Hybrid Hardening Process Based on Response Surface Methodology and WOA-BP Neural Network
Optimization of Laser-Induced Hybrid Hardening Process Based on Response Surface Methodology and WOA-BP Neural Network Open
The laser-induced hybrid hardening process integrates laser quenching and electromagnetic induction heating to overcome traditional heat treatment limitations, enhancing the depth and properties of hardened layers for applications like win…
View article: The Effect of In Situ Laser-Assisted Plasma Spraying on the Plasma Etching Resistance of Yttrium Oxide Coating
The Effect of In Situ Laser-Assisted Plasma Spraying on the Plasma Etching Resistance of Yttrium Oxide Coating Open
In recent years, yttrium oxide coatings prepared by atmospheric plasma spraying (APS) have been employed extensively in semiconductor processing equipment. Meanwhile, defects in yttrium oxide coating, such as unmelted particles and pores, …
View article: Effect of Laser on the Interface and Thermal Conductivity of Metallized Diamond/Cu Composite Coatings Deposited by Supersonic Laser Deposition
Effect of Laser on the Interface and Thermal Conductivity of Metallized Diamond/Cu Composite Coatings Deposited by Supersonic Laser Deposition Open
To achieve the rapid heat dissipation of components in the industrial field, the heat dissipation coating is prepared on the surface, which is conducive to improving the service life of the parts and greatly reducing the industrial costs. …
View article: Preparation of bainite phase microstructure by laser-electromagnetic induction hybrid solid-state phase transformation
Preparation of bainite phase microstructure by laser-electromagnetic induction hybrid solid-state phase transformation Open
Increasing the proportion of bainite and martensite phases is one of the effective ways to enhance the toughness of medium-carbon low-alloy steel(42CrMo). In this paper, the surface heat treatment of 42CrMo steel is carried out by using a …
View article: Investigating the Influence Mechanism of Different Shielding Gas Types on Arc Characteristics and Weld Quality in TA2 Laser–Arc Hybrid Welding
Investigating the Influence Mechanism of Different Shielding Gas Types on Arc Characteristics and Weld Quality in TA2 Laser–Arc Hybrid Welding Open
The effective welding of a 6 mm thick TA2 pure titanium medium-thickness plate was achieved by laser–arc hybrid welding (LAHW) with helium–argon mixed shielding gas. Conducted research on the influence of helium–argon mixed shielding gas o…
View article: Temperature control research for laser-induction hybrid strengthening process
Temperature control research for laser-induction hybrid strengthening process Open
A comprehensive control methodology has been developed to address challenges such as temperature fluctuations, inconsistent depth penetration, and compositional integrity variations during laser-induction hybrid strengthening performed wit…
View article: Development of powder delivery nozzles for laser gas-powder cladding
Development of powder delivery nozzles for laser gas-powder cladding Open
Along with processing parameters, material properties of the workpiece and the powder, the quality of focusing of gas-powder stream is the key parameter that can influence the productivity, quality and costs of laser gas-powder cladding, r…
View article: Mechanism and Process of Recycling Copper and Cyanide from a Hazardous Cyanide Waste Slag
Mechanism and Process of Recycling Copper and Cyanide from a Hazardous Cyanide Waste Slag Open
China's gold mining enterprises produce a large amount of cyanide slag containing copper ions and cyanide every year, which causes serious environmental pollution if deposited directly. Aiming at hazardous waste cyanide slag, a new process…
View article: Enhance SIL Simulation Through Driver Behaviour Modeling at Unprotected Left-Turn Scenario for Autonomous Driving SOTIF Analysis
Enhance SIL Simulation Through Driver Behaviour Modeling at Unprotected Left-Turn Scenario for Autonomous Driving SOTIF Analysis Open
As the rapid advancement of artificial intelligence (AI), information and communication technologies, autonomous driving system (ADS) has increased permeation into the traditional automotive industry in recent years. To reduce the Safety o…
View article: Microstructural Evolution of Calcium Sulfoaluminate Cement during the Wet-Carbonation Process
Microstructural Evolution of Calcium Sulfoaluminate Cement during the Wet-Carbonation Process Open
Calcium sulfoaluminate (CSA) cement, as a type of low-carbon cement, can contribute to further reduction in carbon emissions with carbonation technologies. However, the detailed microstructure development of CSA cement during the carbonati…
View article: Tribological Behavior of Ti-Coated Diamond/Copper Composite Coating Fabricated via Supersonic Laser Deposition
Tribological Behavior of Ti-Coated Diamond/Copper Composite Coating Fabricated via Supersonic Laser Deposition Open
Diamond/copper composite coating is promising for wear-resistant applications, owing to the extreme hardness of the diamond reinforcement. Ti-coated diamond/copper composite coatings with various laser powers were successfully fabricated e…
View article: Support design of overhanging structure for laser powder bed fusion
Support design of overhanging structure for laser powder bed fusion Open
Warpage deformation inevitably occurs when laser powder bed fusion (LPBF) is applied on an overhanging structure. An effective support added to the system can mitigate warpage and improve the accuracy of formed parts. Four types of support…
View article: Grey Wolf Optimization Algorithm Based on Follow-Controlled Learning Strategy
Grey Wolf Optimization Algorithm Based on Follow-Controlled Learning Strategy Open
This paper analyzes the OBL strategy’s impact on optimizing the GWO algorithm and identifies three shortcomings. the specific limitations of the OBL optimization approach. To address these three shortcomings and enhance both global optimiz…
View article: Microstructure and Wear Resistance of Cu coated-CNTs/Cu Composite Coating Prepared with Supersonic Laser Deposition
Microstructure and Wear Resistance of Cu coated-CNTs/Cu Composite Coating Prepared with Supersonic Laser Deposition Open
摘要: 采用超音速激光沉积技术(Supersonic laser deposition, SLD)在Cu基体上制备CNTs/Cu复合涂层以提高其耐磨损性能,利用化学镀对CNTs表面进行了表面镀铜处理,在CNTs表面获得了均匀分布的纳米Cu颗粒镀层。对复合涂层的截面形貌、微观结构、磨损性能及机制等进行了分析,结果表明,由于在冷喷涂(CS)过程中同步引入了激光辐照对Cu粘结相进行加热软化,SLD制备的CNTs/Cu复合涂层具有较高的沉积效率和致密性。得益于表面铜镀层的缓冲作用,…