Work

Development of a new technological scheme to produce NiTi seamless tubes

Year: 2025

Type: article

Abstract: In the present study a new technological scheme for the production of seamless tubes from Ti-50.7 at.% Ni shape memory alloy is performed. The initial shell is obtained from the NiTi rod by electrical discharge method allowing to decrease metal consumption. Plugging of the shell is carried out on a screw rolling mill. The deformation-temperature regimes of a shell plugging on a floating mandrel is described in detail. With the application of developed technological scheme NiTi seamless tubes with various outer diameters from 40 to 27.5 mm and a tube schedule from 10 mm to 4.0 mm were produced. The analysis of mechanical and functional properties of obtained tubes reveals that they are quite stable and comparable with properties of initial SMA rods. The suggested technological scheme of NiTi seamless tubes production is promising in terms of simplified processing and potential cost reduction.

Source: Procedia Structural Integrity

DOI: 10.1016/j.prostr.2025.07.005

Authors: Roman Karelin, V. Komarov, Vladimir Cherkasov, Vladimir Andreev, Vladimir Yusupov

Institutions: National University of Science and Technology, Baikov Institute of Metallurgy and Materials Science

Language: English

Topic: Shape Memory Alloy Transformations

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: diamond

Funder: Russian Science Foundation