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Superalloys 2000 (Ninth International Symposium)
The HTLCF properties and related microstructures of MA 760, a mechanically alloyed oxide dispersion strengthened Ni-base superalloy, were studied using specimens of two different grain orientations. The push-pull fatigue tests with total strain as a control parameter were conducted at two different strain rates, g =0.005 i' and & =0.0005 s", at the temperatures of 650 @C, 950 "C, 1000 "c and 1050 'C. The fracture surfaces and the dislocation microstructures of the fatigued specimens weredoi:10.7449/2000/superalloys_2000_563_571 fatcat:ypjw63feqrgnply3hocheblzzq