The importance of secondary and ternary twinning in compressed Ti
Autor: | Wim Tirry, Michael E. Nixon, Luc Rabet, F. Coghe, Oana Cazacu |
---|---|
Rok vydání: | 2011 |
Předmět: |
Materials science
Mechanical Engineering Metals and Alloys Thermodynamics Strain hardening exponent Strain rate Condensed Matter Physics Crystallography Electron diffraction Mechanics of Materials Hardening (metallurgy) General Materials Science Texture (crystalline) Ternary operation Crystal twinning Electron backscatter diffraction |
Zdroj: | Scripta Materialia. 64:840-843 |
ISSN: | 1359-6462 |
DOI: | 10.1016/j.scriptamat.2011.01.012 |
Popis: | Twin formation during uniaxial compression of high-purity α-Ti at room temperature is investigated for both quasi-static and dynamic conditions using electron backscatter diffraction techniques. The initial texture is favorable for { 10 1 ¯ 2 } twinning, yet it is observed that secondary and ternary twins occur for both strain rates, showing a higher propensity in the dynamic case. While secondary twins may explain the difference in texture change and strain hardening between the two loading conditions, the ternary twins mainly contribute to grain fractioning. |
Databáze: | OpenAIRE |
Externí odkaz: |