Wear Resistance Of Titanium Research Articles

Sintered titanium-base bearing materials

1. The wear resistance of titanium, under dry friction conditions can be appreciably increased by employing the metal in the form of composites infiltrated with low-melting-point metals and alloys. 2. In the friction and wear investigation described the best combination of bearing properties was found to be exhibited by a Ti-(Bi-Pb-Sn-Cd) material with a metallic lubricant content of 20–25 vol.%. The optimum duration of infiltration, involving immersion in molten metal, was 60 min. In the load range investigated the operating performance of the material improved with increasing sliding speed.

Abrasive wear resistance and character of rupture of the surface layers of titanium and zirconium borides

1. The wear of specimens of titanium and zirconium borides exposed to a two-phase stream is determined by the angle of attack (maximum wear is observed at an angle of 60°), the combination of the microhardness and plasticity of the materials, and the degree of localization of the valence electrons in the stable configurations sp2 or sp3. 2. The wear resistance of titanium and zirconium borides is seven to 10 times that of Kh18N10T steel.

Wear resistance of titanium with diffusion saturation coatings

Wear resistance of titanium with diffusion saturation coatings

窒化処理Tiの諸性質について

Laboratory tests were carried out on the wear resistance, corrosion resistance and mechanical properties of titanium nitrided in nitrogen stream at 850°C for 16∼80 hr. The wear resistance of titanium was remarkably improved by nitriding. According to the results of sliding experiments, nitrided titanium showed satisfactory surface properties in combinations with the following materials: Cast iron, hard chromium plating and nitrided titanium itself respectively in unlubricated conditions; bronze, cast iron, carbon steel, low alloy steel, Carbaite, bakelite, hard chromium plating and nitrided titanium itself respectively in lubricated conditions. On the whole, the corrosion resistance of titanium was not affected adversely by nitriding and, further, it was interesting to note that the nitriding even improved the resistance in reducing environments. The effect of nitriding on the mechanical properties of titanium was negligible.