Deformation behavior in quenched and aged beta titanium alloys. Technical report
The deformation characteristics of quenched and aged Ti-V alloys in the composition range 20 to 40 percent 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. (GRA)
- Research Organization:
- Georgia Inst. of Tech., Atlanta (USA). School of Chemical Engineering
- NSA Number:
- NSA-33-030120
- OSTI ID:
- 4035027
- Report Number(s):
- AD/A--009892
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
*VANADIUM ALLOYS-- DEFORMATION
360103* --Materials--Metals & Alloys--Mechanical Properties
AGING
ELECTRON MICROSCOPY
EMBRITTLEMENT
MICROSTRUCTURE
N50230* --Metals
Ceramics
& Other Materials--Metals & Alloys--Properties
Structure & Phase Studies
PHASE TRANSFORMATIONS
QUENCHING
SLIP
TWINNING