ISSN:
1573-9066
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions A characteristic feature of VT3-1 alloy granules is that, as their size decreases, their structure changes from dendritic to acicular and the α″-phase appears in them. The surface condition of these granules is characterized by the presence of films of the lower titanium oxides Ti2O3, Ti3O5, and Ti4O7. Hightemperature annealing in a vacuum dissolves the surface films. Effective consolidation of starting granules with films less than 350 Å thick is observed at temperatures of 900° C and higher. The presence of thicker surface oxide films on these granules has a marked adverse effect on the quality of resultant dense compacts. The ductility of compacts can be improved by subjecting them to cyclic heat treatment in theα +β/β transformation temperature range. Isostatic pressing of granules can be employed as a means of obtaining dense compacts having dimensions close to those of finished parts.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00815641
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