engleski

Creep fatigue behaviour of directionally solidified nickel base super alloy

The static and cyclic load controlled tests of as-cast and treated single crystal nickel base superalloy CMSX3 have been studied. Two different testing procedures were adopted. One is cryclic test with different hold times at maximum stress amplitude, and the other cryclic creep procedure is in which the mean stress was held constant at 400 MPa. Different cycling frequency and amplitude ratios were superimposed on the mean stress. All the tests were carried out at 900 °C.The influence of these variables was evaluated through the deformation mechanism investigation and life to facture data.

nickel ; superalloy ; static and cyclic creep ; times ; stress amplitude ; frequency

Tiskano u: Metalurgija 35 (1996) 2, 115.