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Title: Tension-compression-tension tertiary twins in coarse-grained polycrystalline pure magnesium at room temperature

Journal Article · · Philosophical Magazine Letters
 [1];  [1];  [2]
  1. Univ. of Nevada, Reno, Reno, NV (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Using electron backscatter diffraction, the microstructural features of tension–compression–tension (T–C–T) tertiary twins are studied in coarse-grained pure polycrystalline magnesium subjected to monotonic compression along the extrusion direction in ambient air. T–C–T tertiary twins are developed due to the formation of a compression–tension double twin inside a primary tension twin. All the observed T–C–T twin variants are of TiCjTj type. TiCi+1Ti+1 (or TiCi–1Ti–1) variants are observed more frequently than TiCi+2Ti+2 (or TiCi–2Ti–2) variants. Moreover, the number of tertiary twin lamellae increases with the applied compressive strain.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1246342
Report Number(s):
LA-UR--14-29016
Journal Information:
Philosophical Magazine Letters, Journal Name: Philosophical Magazine Letters Journal Issue: 4 Vol. 95; ISSN 0950-0839
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English