scholarly journals Effect of alloying elements on laser surface modification of powder metallurgy to improve surface mechanical properties of beta titanium alloys for biomedical application

Author(s):  
M.C. Rossi ◽  
J.M. Amado ◽  
M.J. Tobar ◽  
A. Vicente ◽  
A. Yañez ◽  
...  
2009 ◽  
Vol 36 (5) ◽  
pp. 1246-1250
Author(s):  
石岩 Shi Yan ◽  
张宏 Zhang Hong ◽  
徐春鹰 Xu Chunying

2008 ◽  
Vol 45 (6) ◽  
pp. 24-32 ◽  
Author(s):  
王东生 Wang Dongsheng ◽  
田宗军 Tian Zongjun ◽  
沈理达 Shen Lida ◽  
刘志东 Liu Zhidong ◽  
黄因慧 Huang Yinhui

2018 ◽  
Vol 58 (3) ◽  
pp. 179 ◽  
Author(s):  
Jaroslav Málek ◽  
František Hnilica ◽  
Sonia Bartáková ◽  
Patrik Míka ◽  
Jaroslav Veselý

The beta-titanium alloys are widely used in many applications (medicine, aerospace industry etc.) due to their superior properties, such as corrosion resistance, biocompatibility and high strength to weight ratio. One of the ways how to increase the strength of those alloys is the addition of oxygen. The oxygen can be present in various forms in the alloy – in a solid solution or in the form of oxides. In this work, the effect of two forms of oxygen (i.e., solid solution and dispersion particles) was studied. Two alloys, one arc melted with different oxygen additions and one prepared via powder metallurgy where the titanium powder was oxidized, were prepared. The microstructure and mechanical properties were studied. A significant increase in strength with increasing the oxygen content in the solid solution has been observed. However, the powder oxidation has almost no effect on a tensile strength probably due to quite large interparticle distances between titanium oxide particles.


2006 ◽  
Author(s):  
E.B. Taddei ◽  
V.A.R. Henriques ◽  
C.A.A Cairo ◽  
C.R.M. Silva

2005 ◽  
Vol 12 (01) ◽  
pp. 123-130 ◽  
Author(s):  
Y. S. TIAN ◽  
C. Z. CHEN ◽  
D. Y. WANG ◽  
T. Q. LEI

Recent developments of laser surface modification of titanium alloys for increasing their corrosion, wear and oxidation resistance are introduced. The effects of laser processing parameters on the resulting surface properties of titanium alloys are reviewed. The problems to be solved and the prospects in the field of laser modification of Ti alloys are discussed. Due to the intrinsic properties, a laser beam can be focused onto the metallic surface to produce a broad range of treatments depending on the input energy. Thus, composite strengthening coatings can be fabricated by the methods of laser alloying, cladding, pulse laser deposition (PLD), etc., which are promising techniques of producing a layer of new materials on the surface of titanium alloys.


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