MECHANISMS OF COMPATIBLE PLASTIC DEFORMATION BETWEEN THE γ-LAMELLAE IN TWO PHASE TiAl-BASE ALLOY
LIANG Wei;YANG Dezhuang (Harbin institute of Technology; Harbin 150001) (Taiyuan University ofTechnology; Taiyuan 030024)
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LIANG Wei;YANG Dezhuang (Harbin institute of Technology; Harbin 150001) (Taiyuan University ofTechnology; Taiyuan 030024). MECHANISMS OF COMPATIBLE PLASTIC DEFORMATION BETWEEN THE γ-LAMELLAE IN TWO PHASE TiAl-BASE ALLOY. Acta Metall Sin, 1997, 33(7): 690-696.
Abstract Mechanisms of compatible plastic deformation in three types of twin-related γ-lamellae have been studied. It was shown that the mechanisms of compatible plastic deformation of both crossing and not crossing lamellar boundary exist in 120°-rotational twin related lamellae. In true twin related lamellae, however, the compatible plastic deformation does not cross the lamellar boundaries. Besides, in pseudo twin related lamellae,the plastic deformation is incompatible.
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LIANG Wei; LI Qiang; LIU Huiting; YANG Dezhuang (Taiyuan University of Technology; Taiyuan 030024)(Harbin Institute of Technology; Harbin 15000l)(Manuscript received 1995-05-24; in revised form 1995-11-03). MECHANICAL TWINNING IN DOUBLE-PHASE TiAl BASE ALLOY WITH A LAMELLAR STRUCTURE[J]. 金属学报, 1996, 32(2): 154-158.
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