Influence of ultrasonic sound on physico-mechanical characteristics of titanium alloys

International Conference on Mechanical Engineering, Automation and Control Systems 2017

机械制造;无线电电子学;计算机科学

Akushskaya, O.M.^1 ; Papsheva, N.D.^1

Samara State Technical University, Molodogvardeiskaia St. 244, Samara

443100, Russia^1

关键词: Composition of the surface layers;    Compressive residual stress;    Density of dislocation;    Fine grain structure;    Physico mechanical characteristics;    Ultrasonic sound;    Ultrasonic vibration;    Working chambers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/327/4/042001/pdf
DOI  :  10.1088/1757-899X/327/4/042001

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The paper presents data on the influence of ultrasonic vibrations on the main physico-mechanical characteristics in the hardening of titanium alloys. Hardening was carried out during rolling and using free balls in a special working chamber with the imposition of ultrasonic vibrations. The studies have shown that ultrasonic hardening of titanium alloys promotes crushing blocks of mosaic and the formation of a fine-grain structure with a high density of dislocations, changes the phase composition of the surface layer and causes the formation of compressive residual stresses. At the same time, technological heredity is practically not manifested. The endurance range of titanium alloys increases.