Abstract
An ultrahigh vacuum creep testing apparatus is described which enables controlled gaseous environments to be maintained in the pressure range of 0.01 nTorr at 298K to 1m Torr at 1223K. Studies of the influence of oxidation on the creep ductility of copper and iron have been made possible by varying the reduction or oxidation potential of the test environments with hydrogen or oxygen additions. Some design advantages and typical experimental operating conditions and results are indicated to illustrate the scope of the apparatus.
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