The effects of texture and strain on the r-value of heavy gauge tantalum plate
- Cabot Performance Materials, Boyertown, PA (United States)
- Los Alamos National Lab., NM (United States)
- US Army, Gaithersburg, MD (United States). ARDEC
Previous work by other researches suggest that the r-values measured from thick-gauge tantalum plate do not correspond to the predicted r-values calculated from ODF coefficients. To understand this behavior, bulk texture analysis using neutron diffraction techniques was conducted on annealed samples of Ta and Ta-2.5W plate: the pure tantalum exhibited a primary {l_brace}111{r_brace} type texture whereas the alloy contained a cube texture. For the pure tantalum, the r-values calculated from the texture of as-annealed and the deformed specimens were similar and correlated well with measured data. The r-value of the Ta-2.5W exhibited a greater degree of strain-sensitivity, such that the calculated r-values based on the initial texture did not represent those calculated or measured after tensile deformation. Strain sensitivity of r-values in Ta and Ta-2.5W plates is related to the generation of a <{bar 1}10> fiber texture during deformation.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- Department of Defense, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10193691
- Report Number(s):
- LA-UR-93-3453; CONF-9309231-3; ON: DE94000690; TRN: 93:003715
- Resource Relation:
- Conference: International conference on textures of materials,Clausthal (Germany),20-24 Sep 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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