Laser cladding for wear and corrosion-resistant multifunctional Cr3Si-Cr2Ni3Si metal silicides matirx composite coatings

2002 ◽  
Author(s):  
Hua Ming Wang ◽  
G. Duan ◽  
L. Y. Zhang ◽  
W. J. Xi
Keyword(s):  
Laser Cladding ◽  
Composite Coatings ◽  
Corrosion Resistant ◽  
Metal Silicides ◽  
Wear And Corrosion

Bioactivity, Wear and Corrosion Resistant Properties of Rare Earth/Calcium Phosphate Composite Coatings

2008 ◽  
Vol 368-372 ◽  
pp. 1194-1197 ◽  
Author(s):  
Chen Ma ◽  
Ying Hui Wang ◽  
Mu Qin Li ◽  
Li Jie Qu
Keyword(s):  
Rare Earth ◽  
Calcium Phosphate ◽  
Composite Coatings ◽  
Xrd Analysis ◽  
Wear Properties ◽  
Corrosion Resistant ◽  
Phosphate Coatings ◽  
Wear And Corrosion ◽  
Micro Arc Oxidation ◽  
Calcium Phosphate Coatings

Rare earth/calcium phosphate composite coatings were fabricated on the surface of Ti-6Al-4V by micro-arc oxidation (MAO) technique. The wear properties and corrosion resistant of rare earth/ calcium phosphate composite coatings in the simulated body fluid (SBF) have been investigated and the bioactivity of the composite coatings were evaluated. The results show that the friction coefficient of the composite coatings in the SBF is only 0.15~0.18 and the anode polarization potential of the coating has been obviously enhanced about 0.18V compared with that of coatings of calcium phosphate coatings. So the composite coatings have excellent wear and corrosion resistant properties. XRD analysis indicates that the composite coatings can induce hydroxyapatite to form on its surface after soaked in SBF for 9d, which shows that the composite coatings own good bioactivity.

scholarly journals Laser Cladding of Wear- and Corrosion-Resistant Layer on Carbon Steel.

1998 ◽  
Vol 64 (5) ◽  
pp. 763-767
Author(s):  
Hiromi Nagakura ◽  
Kazuhiro Nakata ◽  
Yosioki Honda ◽  
Shogo Tomida
Keyword(s):  
Carbon Steel ◽  
Laser Cladding ◽  
Corrosion Resistant ◽  
Wear And Corrosion ◽  
Resistant Layer

scholarly journals The Effects of the Addition of Ti3SiC2 on the Microstructure and Properties of Laser Cladding Composite Coatings

Coatings ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 498 ◽  
Author(s):  
Qin Shi ◽  
Hejun Zhu ◽  
Changsheng Li
Keyword(s):  
Composite Coating ◽  
Laser Cladding ◽  
Composite Coatings ◽  
Composite Ceramic ◽  
Microstructure And Properties ◽  
Surrounding Structure ◽  
Wear And Corrosion ◽  
Severe Fatigue ◽  
Wear And Corrosion Resistance ◽  
Original Coating

This study explored the effects of Ti3SiC2 on the microstructure and properties of laser cladding coatings using X-ray diffractometer, scanning electron microscope, electrochemical workstation, and UMT-2 wear tester analyses. It was found that with the addition of Ti3SiC2, the reinforcing phases in the composite coating were TiC, Ti(B,C)2, honeycomb-like (Cr, Fe)23C6, and a novel composite ceramic with an “eyeball” structure, which had an inside core of Al2O3 and TiC outer surrounding structure. The microhardness, wear, and corrosion resistance of the composite coating were about 1.35, 2, and 4.3 times those of the original coating, respectively. The main wear mechanisms of the original coating were severe fatigue spalling and microcutting, while the main mechanisms of the composite coating were slight microcutting and the formation of the transferred film.

State of the Art and Prospects on Laser Clad Multiphase Transition Metal Silicides Wear and Corrosion Resistant Coatings for the Aerospace and Petrochemical Industries

2006 ◽  
Vol 118 ◽  
pp. 235-242 ◽  
Author(s):  
H.M. Wang ◽  
L.X. Cai
Keyword(s):  
High Temperature ◽  
Transition Metal ◽  
Oxidation Resistance ◽  
Fretting Wear ◽  
Temperature Oxidation ◽  
Corrosion Resistant ◽  
Good Oxidation Resistance ◽  
Test Conditions ◽  
Metal Silicides ◽  
Wear And Corrosion

Wear and corrosion resistant multi-phase transition metal silicides coatings including W2Ni3Si/W5Si3, Ti5Si3/NiTi2, Ti2Ni3Si/NiTi, etc, were developed and fabricated by laser cladding process. Tribological properties were evaluated under dry sliding and reciprocating fretting wear test conditions and the responding wear mechanisms were discussed as functions of microstructure constitutions and test conditions. High temperature oxidation resistance of the coatings was investigated. The coatings exhibited excellent combination of room and high temperature metallic sliding wear resistance, fretting propertiy, metallic tribological compatibility, good oxidation resistance and abnormal wear-load dependence. Applications of the coatings were prospected for the aerospace, petrochemical and energy-processing industries.

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