Iranian Journal of Mechanical Engineering Transactions of ISME

Iranian Journal of Mechanical Engineering Transactions of ISME

Effect of the Annealing after Rolling Process on the Deformation Anisotropy of Pure Titanium

Author
Assistant Professor, Research Center for Advance Materials, Faculty of Materials Engineering, Sahand University of Technology, Tabriz, Iran
Abstract
Wrought commercial pure titanium, with high specific strength, heat and corrosion resistance, and bio-compatibility, is widely used in the automobile, aerospace, biological, and petroleum industries. For evaluating the effects of the annealing treatment on the forming anisotropy, tensile test samples with 0, 45 and 90° rotations to RD for rolled and annealed samples were prepared and their mechanical properties were investigated.  Results showed that the fracture surface of samples have an angle of 45° with respect to the direction of the loading and rolled samples have a severe anisotropy in the Yang modulus and yield stress as well as UTS, and this anisotropy is reduced by applying the annealing treatment. Also, it was revealed that after the final annealing the anisotropy index of UTS is reduced from 0.490 to 0.326 and a considerable increase in the elongation of samples is seen which is encouraging for forming of pure titanium sheets. 
Keywords

Subjects


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  • Receive Date 10 October 2024
  • Revise Date 16 April 2025
  • Accept Date 05 May 2025