High-temperature creep fatigue test system

Abstract

A high-temperature creep fatigue test system, which consists of a fatigue testing machine, specimen holders, a high temperature furnace, a sample, a high temperature extensometer, a cooler and host computer. Upper and lower specimen holders are in threaded connection to ensure the uniform axial loading of the specimen; the specimen holders are connected to the fatigue testing machine; the high-temperature extensometer is connected with the specimen through a jaw; a high temperature furnace mounted on the fatigue testing machine moves to a corresponding position, and wraps the specimen inside; the cooler through inlet and outlet pipes is respectively connected to the upper and lower specimen holders; the fatigue testing machine and the high-temperature extensometer are connected to the host computer; the host computer by reading real-time measurement strain of the high-temperature extensometer controls the fatigue testing machine, so as to conduct strain-controlled high-temperature creep fatigue test. The present invention has the beneficial effects that deformation of the material in high-temperature creep fatigue test can be measured, and has the characteristics of easy operation and high measurement accuracy.

Description

technical field [0001] The invention relates to a high-temperature creep fatigue test system, which belongs to the technical field of test and test. Background technique [0002] Engineering materials and structures, especially aero-engine materials, are often used in high-temperature environments. At present, the testing of high-temperature performance of materials at home and abroad is mainly the testing of high-temperature creep performance and stress-controlled high-temperature fatigue performance. For high-temperature creep, fatigue There is still a lack of an effective test system for testing material properties under interaction. For this reason, the present invention integrates conventional fatigue testing machine, sample fixture, high temperature extensometer, high temperature furnace, chiller, sample and main control computer into a kind of high temperature creep fatigue test system, which can be used for materials under high temperature environment based on Strai...

AI Technical Summary

Problems solved by technology

[0002] Engineering materials and structures, especially aero-engine materials, are often used in high-temperature environments. At present, the testing of high-temperature performance of materials at home and abroad is mainly the testing of high-temperature creep performance and stress-controlled high-temperature fatigue performance. For high-temperature creep, fatigue There is still a lack of an effective test system for material property testing under interaction

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