The Effect of Long-Term Heating on Thermal Stability of Ultra-Fine Grained Titanium Alloy VT8M-1 Processed by Rotary Swaging-Reference-Cited by-同舟云学术

The Effect of Long-Term Heating on Thermal Stability of Ultra-Fine Grained Titanium Alloy VT8M-1 Processed by Rotary Swaging

Published:2021-01-05 Issue: Volume:1016 Page:1398-1403
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Stotskiy Andrey¹^ORCID,Yakovleva Tatyana Vitalyevna¹,Dyakonov Grigory¹,Polyakov Alexander V.¹,Semenova Irina¹

Affiliation:

1. Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 12 K. Marx st., Ufa, 450008

Abstract

The paper focuses on the analysis of microstructure and mechanical properties of the Ti alloy VT8М-1 (Ti-5.3Al-4.0Mo-1.2Zr-1.3Sn-0.2Si) in an ultrafine-grained (UFG) state subjected to a long-term annealing at a service temperature of (≤ 450°С). A rotary swaging (RS) was used to process an UFG state in the material. The precipitation of disperse silicides of S2 was observed after the deformation by RS. It has been shown that the UFG alloy retained its high level of thermal stability and enhanced mechanical properties after long-term annealing up to 500 hours. The role of disperse silicides in both strengthening and stability of mechanical properties in the alloy after long-term annealing is discussed.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.1016.1398.pdf

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