Interactive effects of strain, strain-rate and temperatures on microstructure evolution in high rate severe plastic deformation

S. Shekhar, S. Abolghashem, S. Basu, J. Cai, M. Ravi Shankar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

During high rate severe plastic deformation (HRSPD), strain and strain-rate are not the only external factors that determine microstructural transformations in materials, temperature-rise due to heat generation from deformation processes, also plays an important role. Temperature may influence the microstructure directly by controlling grain growth kinetics and it may also have an indirect effect through the interactive effect on material behavior, which in turn, influences strain and strain-rate parameters. This complex thermomechanics of HRSPD can lead to myriad of microstructure and consequently, material properties and phenomenon. These deformation parameters can be utilized as a 'fingerprint' for the resulting microstructure, and the properties and phenomenon related to it. Here, we capture some of these microstructural transformations by relating grain and sub-grain sizes, to the deformation parameters. In doing so, we find evidence of continuous dynamic recrystallization operative under these HRSPD conditions, where the interplay of strain, strain rate and temperatures offer varying degrees of multimodality in the grain-size distributions.

Original languageEnglish (US)
Title of host publicationTextures of Materials
EditorsAsim Tewari, Satyam Suwas, Dinesh Srivastava, Indradev Samajdar, Arunansu Haldar
PublisherTrans Tech Publications Ltd
Pages139-142
Number of pages4
ISBN (Print)9783037852941
DOIs
StatePublished - 2012
Event16th International Conference on Textures of Materials, ICOTOM 16 - Mumbai, India
Duration: Dec 12 2011Dec 17 2011

Publication series

NameMaterials Science Forum
Volume702-703
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other16th International Conference on Textures of Materials, ICOTOM 16
CountryIndia
CityMumbai
Period12/12/1112/17/11

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Interactive effects of strain, strain-rate and temperatures on microstructure evolution in high rate severe plastic deformation'. Together they form a unique fingerprint.

Cite this