Laser Cladding of Titanium Oxide on Ti6Al4V Alloy

2019 ◽  
Author(s):  
◽  
Lorena Markovic
Keyword(s):  
Titanium Oxide ◽  
Laser Cladding ◽  
Ti6al4v Alloy

Direct laser cladding of layer-band-free ultrafine Ti6Al4V alloy

2016 ◽  
Vol 307 ◽  
pp. 761-771 ◽  
Author(s):  
Lijun Song ◽  
Hui Xiao ◽  
Jinyu Ye ◽  
Simeng Li
Keyword(s):  
Laser Cladding ◽  
Ti6al4v Alloy ◽  
Direct Laser

scholarly journals Laser Cladding of Ti-Based Ceramic Coatings on Ti6Al4V Alloy: Effects of CeO2 Nanoparticles Additive on Wear Performance

Coatings ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 109 ◽  
Author(s):  
Haojun Wang ◽  
Tao Chen ◽  
Weilong Cong ◽  
Defu Liu
Keyword(s):  
Abrasive Wear ◽  
Laser Cladding ◽  
Wear Mechanisms ◽  
Adhesive Wear ◽  
Ceramic Coatings ◽  
Ceo2 Nanoparticles ◽  
Ti6al4v Alloy ◽  
Fatigue Wear ◽  
Wear Performance ◽  
Worn Surface

Ti-based ceramic coatings on Ti6Al4V substrates were successfully prepared through a laser cladding process using pre-placed starting materials of TiCN + SiO2 mixed powder without or with adding a 3 wt % CeO2 nanoparticles additive, aiming at improving the wear resistance of the Ti6Al4V alloy for biological applications. The effects of the CeO2 nanoparticles additive on the microstructure, microhardness, and wear performance of the coatings were analyzed in detail. The observations showed that the main compositions of the cladding coating were TiCN and TiN phase. Compared to the coatings without CeO2, the coatings modified with CeO2 nanoparticles led to more excellent mechanical properties. The average microhardness of the coatings modified with CeO2 nanoparticles was approximately 1230 HV0.2, and the wear volume loss of the coatings modified with CeO2 nanoparticles was approximately 14% less than that of the coatings without CeO2 under a simulated body fluid (SBF) lubrication environment. The major reasons included that the microstructure of the coatings modified with CeO2 nanoparticles was refined and compact granular crystalline. The wear mechanisms of the coatings were investigated from the worn surface of the coatings, wear debris, and the worn surface of the counter-body balls. The wear mechanisms of the coatings without CeO2 included abrasive wear, adhesive wear, and fatigue wear, while the wear mechanisms of the coatings modified with CeO2 nanoparticles included only abrasive wear and adhesive wear, because the fine microstructure of the coatings had an excellent resistance to fatigue wear.

Strength and Reliability Performance of Hydroxyapatite Coatings on Titania Treated Ti6Al4V Alloy Using Sol-Gel Precursor

2007 ◽  
Vol 124-126 ◽  
pp. 1161-1164
Author(s):  
A. Balakrishnan ◽  
Byoung Cheon Lee ◽  
Taik Nam Kim ◽  
B.B. Panigrahi
Keyword(s):  
Oxide Layer ◽  
Titanium Oxide ◽  
Bonding Strength ◽  
Sol Gel ◽  
Ti6al4v Alloy ◽  
Gel Method ◽  
Ha Coating ◽  
Hydroxyapatite Coatings ◽  
Treated Sample ◽  
Reliability Performance

In this study hydroxyapatite (HA) was coated by sol-gel method on Ti6Al4V alloy substrates: on micropolished surface and after titania (titanium oxide) treatment. Former shows the cracks and poor bonding of HA whereas latter shows coating without cracks and higher bonding strength. The higher bonding strength of HA coating in titania treated sample could be attributed to the increased roughness by titanium oxide layer.

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