Patent ID: 11921066
Assignee: NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 0:
1. A system for ultra-high temperature in-situ fretting fatigue experiment, comprising:
a heat preservation cover defining a mounting space;
a heating device arranged in the mounting space;
a first test sample made of a nickel-based polycrystal superalloy and configured to simulate a turbine disk;
a second test sample made of a nickel-based single-crystal superalloy and configured to simulate a turbine blade, wherein the first test sample and the second test sample are arranged at an upper end of the heating device along a horizontal direction, a mortise is formed at an end of the first test sample facing towards the second test sample, and a tenon configured to mate with the mortise is formed at an end of the second test sample facing towards the first test sample; and
a clamping device arranged in the mounting space, wherein the clamping device is configured to be clamped at two ends of the mated first test sample and second test sample, and configured to apply a periodically reciprocating loading along a length direction of the first test sample and the second test sample,
wherein the heating device comprises a heating wire and a gasket, the first test sample and the second test sample are disposed on the gasket, the gasket is configured to transfer heat generated by the heating wire towards the first test sample and the second test sample, and the heating wire is arranged at a lower end of the gasket; and
wherein an observation hole in communication with the mounting space is defined on the heat preservation cover, the observation hole is located in a middle part of a length direction of the heat preservation cover, and the first test sample and the second test sample are mated with each other and movably arranged in the mounting space in such a manner that the mortise and the tenon are located right below the observation hole.