Some Metallurgical Considerations In Centrifugal Compressors

Abstract

Consideration of the materials for use in rotating machinery must begin with careful study and appraisal of expected operating conditions. In the discussion which follows, attention is concentrated on centrifugal compressors, but similar considerations are required in other types of turbomachinery such as axial compressors and steam and gas turbines. In addition to the nominal conditions of operation, it is also necessary to take into account expected variations in these conditions. It is necessary to know whether variations are expected to be transient, or of long duration. Sometimes, machinery is purchased for intermittent operation, and this is usually the most severe kind of service.