Abstract
In this article, we study the impact of rolling conditions on the texture of the commercially pure titanium grade 2. In a previous work, NEOTISS in collaboration with ICB laboratory, shown that the texture highly influences the precipitation of hydrides in Titanium. In order to create different textures, Titanium sheets grade 2 are cold rolled asymmetrically and symmetrically with or without lubricant. The inverse pole figures and direct pole figures obtained allow us to deduce that symmetrical cold rolling does not change the grains orientation but generates a rotation of grains along c-axis (normal to basal plan). However, asymmetrical cold rolling leads to the formation of a new crystallographic texture, which could limit the formation of the hydrides in titanium grade 2 submitted to a hydrogen-rich environment. Key words: asymmetrical rolling, symmetrical rolling, titanium, hydriding, texture
Highlights
Titanium owns excellent corrosion resistance, good mechanical properties, low density, tolerable castability, good weldability, and excellent biocompatibility
In this article, we study the impact of rolling conditions on the texture of the commercially pure titanium grade 2
The (0002) pole figure of the T40B seems to reflect a shear strain appearing during the cold rolling process: such a pole figure was already observed by Wroński et al [22] when the asymmetrically cold rolling is applied on grade 2 titanium sheets
Summary
Titanium owns excellent corrosion resistance, good mechanical properties, low density, tolerable castability, good weldability, and excellent biocompatibility. Titanium alloys are used to design reactors, condensers and many other technical parts of systems in the previously cited industries[2],[3] According to their applications, titanium can be submitted to aggressive environments (temperature, pressure and gas atmospheres) and, in some particular cases, exposed to hydrogen. We will present the first stage of our investigations in order to determine the most favourable rolling conditions leading to a crystallographic texture similar to that obtained on the T40B sample In this aim, we will especially care about the effects of asymmetrical and symmetrically cold rolling on grains crystallographic orientation of CP Ti [12], [19], [22]–[24]
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