Jianming Zhang
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Jianming Zhang has a total of 14 co-authors. Here are the top co-authors by number of shared publications:
- Binggong Yan
School of Electromechanical and Automation, Huaqiao University, Xiamen 361021, China
2 shared publications - Jian Liu
National Engineering Research Center for Remanufacturing, PLA Army Services University, Beijing 100072, China
2 shared publications - Weihang Liu
Fujian Key Laboratory of Special Energy Manufacturing, Huaqiao University, Xiamen 361021, China
2 shared publications - Zhaoju Peng
Fujian Key Laboratory of Special Energy Manufacturing, Huaqiao University, Xiamen 361021, China
2 shared publications - Zhihai Cai
National Engineering Research Center for Remanufacturing, PLA Army Services University, Beijing 100072, China
2 shared publications - Dehua Wu
Fujian Key Laboratory of Special Energy Manufacturing, College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, China
1 shared publication
Latest Publications
- Open Access
Laser Cladding of Lightweight Al-Mg-Ti-Cu-Ni-(Cr) High-Entropy Alloy Coatings Using Stranded Wires
Lightweight high-entropy alloy (HEA) coatings are highly desirable for advanced surface protection. This study presents a novel fabrication method for Al-Mg-Ti-Cu-Ni-Cr lightweight HEA coatings via laser cladding combined with in situ alloying, using a specially designed cable-type composite wire consisting of an Al-Mg core sheathed with Cu, Ti, Ni, and Cr-Ni wires. The fabricated coatings exhibit homogeneous composition, high microhardness, and excellent corrosion resistance. Notably, the Al43.5Mg2Ni28Cu15Ti11.5 coating achieves a microhardness of 627 HV0.1 and a corrosion current density of 5.5 × 10−6 A/cm2, while the Al43.6Mg2.1Cr2.5Ni25.2Cu15.2Ti11.4 coating shows 523 HV0.1 and a lower current density of 2.8 × 10−6 A/cm2. Mechanical analysis reveals that the enhanced hardness stems from synergistic strengthening effects—severe lattice distortion, B2 phase coherent precipitation, and grain refinement. The superior corrosion resistance is primarily attributed to a compact Cr2O3 passive film. This work provides a new strategy for designing and additively manufacturing lightweight HEA coatings.
Open AccessLaser Cladding of Lightweight Al-Mg-Ti-Cu-Ni-(Cr) High-Entropy Alloy Coatings Using Stranded Wires
Lightweight high-entropy alloy (HEA) coatings are highly desirable for advanced surface protection. This study presents a novel fabrication method for Al-Mg-Ti-Cu-Ni-Cr lightweight HEA coatings via laser cladding combined with in situ alloying, using a specially designed cable-type composite wire consisting of an Al-Mg core sheathed with Cu, Ti, Ni, and Cr-Ni wires. The fabricated coatings exhibit homogeneous composition, high microhardness, and excellent corrosion resistance. Notably, the Al43.5Mg2Ni28Cu15Ti11.5 coating achieves a microhardness of 627 HV0.1 and a corrosion current density of 5.5 × 10−6 A/cm2, while the Al43.6Mg2.1Cr2.5Ni25.2Cu15.2Ti11.4 coating shows 523 HV0.1 and a lower current density of 2.8 × 10−6 A/cm2. Mechanical analysis reveals that the enhanced hardness stems from synergistic strengthening effects—severe lattice distortion, B2 phase coherent precipitation, and grain refinement. The superior corrosion resistance is primarily attributed to a compact Cr2O3 passive film. This work provides a new strategy for designing and additively manufacturing lightweight HEA coatings.
- Open Access
Numerical Simulation of Laser Cladding Using Cable Wires
Cable wires provide a viable technical pathway for the laser additive manufacturing of high-entropy alloys (HEAs). However, the complex interplay of structural and material parameters of cable wires leads to significant variations in molten pool dynamics, which poses challenges to the fabrication of high-quality HEA coatings. To clarify the effects of these key factors on molten pool behavior, a multi-physics numerical model for the laser cladding of Al50Si6Ti8Cr12Cu12Ni12 cable wires was established in this study. A dedicated physical model for cable wires was developed, and the Level Set Method was employed to track fluid interfaces throughout the cladding process. Based on the proposed model, the temperature distribution, stress fields, and elemental homogeneity within the molten pool were systematically investigated. The results reveal that chromium (Cr) addition induces a viscosity reduction, and a torsional pitch of ≤4 mm is critical for achieving defect-free, compositionally uniform HEA coatings, which provides novel insights for process optimization and alloy design of cable-wire laser cladding.
Open AccessNumerical Simulation of Laser Cladding Using Cable Wires
Cable wires provide a viable technical pathway for the laser additive manufacturing of high-entropy alloys (HEAs). However, the complex interplay of structural and material parameters of cable wires leads to significant variations in molten pool dynamics, which poses challenges to the fabrication of high-quality HEA coatings. To clarify the effects of these key factors on molten pool behavior, a multi-physics numerical model for the laser cladding of Al50Si6Ti8Cr12Cu12Ni12 cable wires was established in this study. A dedicated physical model for cable wires was developed, and the Level Set Method was employed to track fluid interfaces throughout the cladding process. Based on the proposed model, the temperature distribution, stress fields, and elemental homogeneity within the molten pool were systematically investigated. The results reveal that chromium (Cr) addition induces a viscosity reduction, and a torsional pitch of ≤4 mm is critical for achieving defect-free, compositionally uniform HEA coatings, which provides novel insights for process optimization and alloy design of cable-wire laser cladding.