Deformation Behavior in Quenched and Aged Beta Titanium Alloys.
GEORGIA INST OF TECH ATLANTA SCHOOL OF CHEMICAL ENGINEERING
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The deformation characteristics of quenched and aged Ti-V alloys in the composition range 20 to 40 V have been examined by optical metallography and transmission electron microscopy. A coarse lenticular deformation product similar in appearance to previously reported strain induced martensites was found to be associated with the occurrence of the omega phase. These features proved to be 112 111 twins. Continued aging of the omega containing alloys resulted in a transition of the deformation mode from twinning to slip at a point which corresponded to the onset of embrittlement or alpha precipitation at the omega-beta interfaces. The formation of deformation twins in a two-phase omega-beta structure is discussed in terms of possible mechanisms.
- Properties of Metals and Alloys