Microstructure and mechanical properties relationships in the Ti-11 alloy at room and elevated temperatures

Effects of microstructural factors on quasi-static and dynamic deformation behaviors of Ti-6Al-4V alloys with widmanstätten structures

“…[1][2][3][4] Mechanical properties of these alloys are largely affected by their microstructures, which are divided into Widmanstätten, equiaxed, and bimodal ones according to heat-treatment conditions. Among them, the Widmanstätten structure is known to have excellent specific strength, fracture toughness, and resistance to crack propagation, [5,6] and is typically composed of colonies of alternative thin ␣ and ␤ lamellae.…”

The Effect of Environment and Temperature on the Fatigue Behavior of Titanium Alloys

“…46 Silicide precipitation treatment being constant, the creep resistance can be correlated with the degree of continuity in the alpha matrix, with an increase in alpha mean free path being characterized by a decrease in creep strength. 4 Finally, Zr has a synergistic effect with silicon and alloys containing both Zr and Si have significantly higher creep strengths than those in which Zr is omitted. It has been suggested that the composition and nature of the silicide precipitate may be influenced by Zr.…”

“…18 However, in microstructures containing a/S colonies oriented by the Burgers relation it is possible for adjacent colonies of common prior B grain origin to have a common basal plane 7 with shear related slip and crack extension proceeding across several colonies. 4,7,8,19 OXIDATION If titanium alloys are to be cyclically loaded at increasingly higher service temperatures it is important that the nature and effects of the oxidation process be understood, particularly since it is already known that oxide film formation and the absorption of oxygen into the substrate can degrade properties such as ductility and toughness. 20 -25 This degradation has been associated with the diffusion of oxygen into the titanium to form a hardened layer whose characteristics relate to the exposure time and temperature.…”

Correlation of structure and properties of melt spun PbSn30Sb7Cu quaternary alloys

“…The lead-tin base bearing alloys generally cause the least damage to steel shafts when operated with inadequate lubrication or with contamination. Several investigators [1][2][3][4][5] studied the correlation of structure with mechanical and electrical properties of metallic bearing materials. Structure, mechanical and electrical transport properties of low melting half-bearing metal alloys rapidly solidified from melt were investigated by Kamal et al [6].…”