Hardness recovery of 85% cold-worked V-Ti and V-Cr-Ti alloys upon annealing at 180{degrees}C to 1200{degrees}C
1995
The objective of this research is to determine the effect of heat treatment of cold-worked V-Ti and V-Cr-Ti alloys on their resulting microstructures and to correlate the results with the physical and mechanical properties of these alloys. Annealing of 85% cold-worked unalloyed V and V-(1-18)Ti alloys for 1 hr at 180 to 1200{degree}C results in hardness maxima at 180-250{degree}C, 420-600{degree}C, and 1050-1200{degree}C and in hardness minima at 280-360{degree}C and, depending on Ti concentration in the alloy, at 840-1050{degree}C. Annealing of 85% cold-worked V-(4-15)Cr-(3-6)Ti alloys for 1 hr at 180{degree}C to 1200{degree}C results in harness maxima at 180-250{degree}C, 420-800{degree}C, and 1050-1200{degree}C, and in hardness minima at 280-360{degree}C and 920-1050{degree}C.
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