Comparison of Different Thermo-Chemical Treatments Methods of Ti-6Al-4V Alloy in Terms of Tribological and Corrosion Properties

Abstract

Titanium and its alloys are characterized by high mechanical strength, good corrosion resistance, high biocompatibility and relatively low Young’s modulus. For many years, one of the most commonly used and described titanium alloys has been Ti-6Al-4V. The great interest in this two-phase titanium alloy is due to the broad possibilities of shaping its mechanical and physico-chemical properties using modern surface engineering techniques. The high coefficient of friction and tendency to galling are the most important drawbacks limiting the application of this material in many areas. In this regard, such methods as carburizing, nitriding, oxidation, and the synthesis of thin films using physical vapor deposition (PVD) and chemical vapor deposition (CVD) methods may significantly improve the tribological properties of titanium alloys. The influence of thermo-chemical treatment (oxidation, carburizing and nitriding) on tribological properties and corrosion resistance of Ti-6Al-4V alloy is presented in this paper. The results include metallographic studies, analysis of tribological and mechanical properties and corrosion resistance as well. They indicate significant improvements in mechanical properties manifested by a twofold increase in hardness and improved corrosion resistance for the oxidation process. The carburizing was most important for reducing the coefficient of friction and wear rate. The nitriding process had the least effect on the properties of Ti-6Al-4V alloy.

TiAl6V4 Alloy Surface Modifications and Their Impact on Biofilm Development of S. aureus and S. epidermidis

“…Numerous physical and chemical surface modifications can and have been applied to metallic biomaterials in general [11], specifically to titanium-based materials [12], and most recently to the application of nano-modifications [13]. This has led to the invention of many new types of titanium-based orthopedic materials with not only a higher resistance to corrosion and better tribological properties [14,15], but also improved mechanical properties [16][17][18][19]. In addition, biocompatibility [19] and resistance to bacterial infections [12,[20][21][22] can be positively influenced by those newly developed materials.…”

Aşınma ve Korozyona Dirençli Çelik Yüzeyler Oluşturmak Için Kullanılan Yüzey İşlemleri Üzerine Bir Derleme

“…However, Al, Cr, Ti, and V are also used in some surface treatment methods. The most commonly used thermochemical surface treatments are carburizing, nitriding, carbonitriding, nitrocarburizing and boriding [35].…”

Simultaneous Carburization, Oxidation, and Nitridation of Titanium Surface Using Ablation by Femtosecond Laser in n‐Heptane

“…[9,10] These modification methods form very hard ceramic surfaces exhibiting high wear, corrosion and oxidation resistance, chemical stability, and biocompatibility. [11,12] It has been reported that coating titanium with TiC also significantly improves osseointegration through improved bone growth compared to uncoated titanium. [13,14] Moreover, capping of different substrates by a thin TiC layer provids a longer lifetime for the implants in the body.…”