Abstract
It is necessary to test the weld thickness of turbine, as it is one of the most important parts for aircraft engine. The weld thickness of turbine for aircraft engine by high-energy X-ray tomography was determined. We used an X-ray tube and a betatron as X-ray sources. The wall thickness of two tubes and weld thickness of turbine were measured. It is shown that the high-energy X-ray tomography system is determined the wall thickness of the tube and the weld thickness of turbine with high accuracy. We also studied the method to reduce scattered radiation. All experiments were carried out in the non-destructive testing (NDT) Institute of Tomsk Polytechnic University (TPU).
Highlights
The welds inspection is very popular subject of many researches [1,2]
The purpose of non-destructive testing of the weld thickness of turbine is a determination of weld thickness and defects, and recognition of their way to assess the potential danger of the defect
The system of high-energy X-ray computed tomography (CT) consists of a radiation source (X-ray tube or betatron), movement system, detector, control system and image
Summary
To ensure the reliability of turbine for aircraft engine, it is necessary to test the weld thickness. The determination of the weld thickness is required to localize defects in the weld. The comparative work [3] shows that the ultrasonic testing is not appropriate to identify typical micron-sized friction defects for linear welding. The work [4] shows that by evaluating the state of defectiveness, we can define the period of the turbine operating. Many of similar studies [5,6,7] were conducted to determine the quality of welding in a turbine blade. The purpose of non-destructive testing of the weld thickness of turbine is a determination of weld thickness and defects, and recognition of their way to assess the potential danger of the defect
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