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| Applicability Research on Measuring Residual Stress of Titanium Alloy by X-Ray Test |
| YAO Gang, ZHANG Jie, LU Yehang, LI Zhongcheng |
| ( AVIC Manufacturing Technology Institute, Beijing 100024, China ) |
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Abstract Applicability of surface residual stress on the complex components of TC4 titanium alloy using X-ray
testing is researched by simulating the test surface state of structure based on four points bending machine loading of titanium
alloy plate specimen and high strength titanium alloy standard sample. The datum show that surface curvature and
range of beta angle do not significantly affect the results. When the radial test surface inclination is larger than 20 °, the test
repeatability is drastically changed, and the result is not available when more than 30°. The result cannot be applied as surface
inclination is greater than 30°. The result decreases with increasing axial angle, which decreases more than 20% when
axial angle is 30°.
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2017, 
