Subtask 12A2 [electronic resource] : Fabrication and properties of laboratory-scale heat of V-5Cr-5Ti
- Argonne, Ill. : Argonne National Laboratory, 1995.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- pages 17-22 : digital, PDF file
- Additional Creators:
- Argonne National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- The immediate objective of this work is to fabricate a new laboratory-scale heat of V-5Cr-5Ti and identify optimal annealing procedure that produces the highest impact toughness in the alloy. By comparing the result with the optimal annealing procedure identified for the production- and laboratory-scale heats of V-4Cr-4Ti, the eventual objective of the study is to demonstrate that excellent and reliable mechanical properties of V-(4-5)Cr-(4-5)Ti alloy class can be produced through a common annealing procedure. Impact properties were determined on a new 15-kg laboratory heat of V-5Cr-5Ti, fabricated by the same procedures as those used to produce the 500-kg production-scale heat of V-4Cr-4Ti, to identify optimal annealing procedure of the alloy. Charpy-impact tests were conducted on one-third-size specimens because low-temperature (<0°C) impact properties have been known to be most sensitive to the structure and quality of V-(4-5)Cr-(4-5)Ti alloy class. After final annealing at ≈1000°C for 1 h in high-quality vacuum, the laboratory heat V-5Cr-5Ti exhibited impact properties as excellent as those of the production-scale heat V-4Cr-4Ti; i.e., DBTT < -200°C and absorbed energies of 10-16 J. This demonstrates that when annealed at common optimal condition of 1000°C for 1 h, the V-(4-5)Cr-(4-5)Ti alloy class exhibit excellent impact toughness and a sufficient tolerance to minor variations in alloying element composition. 5 refs., 5 figs., 1 tab.
- Report Numbers:
- E 1.99:anl/fpp/tm--287
E 1.99: iter/us--95/iv-mat-10
- Other Subject(s):
- Published through SciTech Connect.
Smith, D.L.; Chung, H.M.; Nowicki, L.
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