Extremely high-temperature in-situ fretting fatigue experimental device for the mortise- tenon joint

Abstract

The present disclosure discloses an extremely high-temperature in-situ fretting fatigue experimental device for a mortise-tenon joint. The device includes: a loading member configured to support a tenon specimen and a mortise specimen, and apply a fatigue load; a heating member to heat the tenon specimen and the mortise specimen; a thermal insulation sleeve wrapping the heating member; a thermal insulation shield with an observation hole; and a control member configured to control operation of the fatigue loading. Various measures including the using of heat-resistant materials for the gasket, thermal insulation shield and sleeve, reducing and shielding thermal electrons, and decreasing a temperature in non-critical areas are adopted to improve high-temperature imaging quality of an in-situ Scanning Electron Microscope (in-situ SEM) and enhance an upper limit of an in-situ SEM experimental temperature.

Dependencies are inferred from the claim text.