Advanced Technology for Preparing Bar from Medical Grade Ti-Zr-Nb Superelastic Alloy Based on Combination of Radial-Shear Rolling and Rotary Forging
- Authors: Sheremet’ev V.A.1, Kudryashova A.A.1, Dinh X.T.1, Galkin S.P.1, Prokoshkin S.D.1, Brailovskii V.2
-
Affiliations:
- National Research Technological University MISiS
- Ecole de Technologie superieure
- Issue: Vol 63, No 1-2 (2019)
- Pages: 51-61
- Section: Article
- URL: https://journals.rcsi.science/0026-0894/article/view/242627
- DOI: https://doi.org/10.1007/s11015-019-00793-z
- ID: 242627
Cite item
Abstract
Prospects are presented for the technology of preparing biomedical Ti–Zr–Nb shape memory alloy 3–8 mm diameter bars more than 2000 mm long using an advanced combination of radial shear rolling and rotary forging. Radial shear rolling parameters are calculated on the basis of technological limitations of true degree and rate of deformation of 0.05–0.5 and 1–5 sec–1 respectively per pass. Full-scale experimental verification of the technology is performed in NITU MISiS 1030 and 1440 radial shear rolling mini-mills with subsequent rotary forging using an RKM2 machine. Bars are obtained with a grain size of ∼ 40 μm demonstrating superelastic behavior at room temperature with a favorable combination of relatively low Young’s modulus (E = 39 GPa) and relatively high strength (σf = 618 MPa). The technology has a high degree of readiness for direct industrial application.
About the authors
V. A. Sheremet’ev
National Research Technological University MISiS
Author for correspondence.
Email: sheremetyev@misis.ru
Russian Federation, Moscow
A. A. Kudryashova
National Research Technological University MISiS
Email: sheremetyev@misis.ru
Russian Federation, Moscow
Xuan Ta Dinh
National Research Technological University MISiS
Email: sheremetyev@misis.ru
Russian Federation, Moscow
S. P. Galkin
National Research Technological University MISiS
Email: sheremetyev@misis.ru
Russian Federation, Moscow
S. D. Prokoshkin
National Research Technological University MISiS
Email: sheremetyev@misis.ru
Russian Federation, Moscow
V. Brailovskii
Ecole de Technologie superieure
Email: sheremetyev@misis.ru
Canada, Montreal
Supplementary files
