Microstructural refinement of Ti billets by equal channel angular pressing

V. V. Latysh*, G. H. Salimgareeva, I. P. Semenova, I. V. Kandarov, Y. T. Zhu, T. C. Lowe, R. Z. Valiev

*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

3 Citations (Scopus)

Abstract

This paper reports the effect of prior deformation on the refinement of microstructure in commercial purity (CP) titanium subject to equal channel angular pressing (ECAP). CP Ti Grade 2 billets were subject to multiple-strike isothermal forging before ECAP. Microstructures and mechanical properties were observed after the initial forging and then after 1, 2, 3, and 4 passes of ECAP. Grain size reduction from 50 μm to 1 μm by forging makes it possible to create a uniform ultrafine-grained structure with an average grain size of 0.6 μm after 2 ECAP passes. This is comparable to the grain size obtained after 8 ECAP passes without prior forging. Moreover, this kind of treatment resulted in a yield strength of 750 MPa in contrast to 680 MPa obtained after 8 ECAP passes.
Original languageEnglish
Title of host publicationUltrafine Grained Materials IV
EditorsYuntian T. Zhu, Terence G. Langdon, Zenji Horita, Michael J. Zehetbauer, S. Lee Semiatin, Terry C. Lowe
PublisherMinerals, Metals & Materials Society
Pages277-282
ISBN (Print)0873396286, 9780873396288
Publication statusPublished - Mar 2006
Externally publishedYes
Event2006 TMS Annual Meeting: Linking Science and Technology for Global Solutions - Henry B. Gonzalez Convention Center, San Antonio, TX, United States
Duration: 12 Mar 200616 Mar 2006
Conference number: 135th
https://www.tms.org/Meetings/Annual-06/PDFs/AM06-Ftechprog.pdf
https://www.tms.org/Meetings/Annual-06/PDFs/AM06-FTuesday.pdf

Publication series

NameTMS Annual Meeting
Volume2006

Conference

Conference2006 TMS Annual Meeting
Country/TerritoryUnited States
CitySan Antonio, TX
Period12/03/0616/03/06
Internet address

Research Keywords

  • Prior deformation
  • Severe plastic deformation
  • Titanium

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