Energy Resolved Residual Stress Analysis with Laboratory X-Ray Sources
Energy Resolved Residual Stress Analysis with Laboratory X-Ray Sources
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DOI：
10.3139/105.110316
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发表时间：
2017-04
期刊：
影响因子：
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通讯作者：
A. Liehr;W. Zinn;S. Degener;Berthold Scholtes;T. Niendorf;C. Genzel
中科院分区：
文献类型：
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作者：
A. Liehr;W. Zinn;S. Degener;Berthold Scholtes;T. Niendorf;C. Genzel
摘要残余应力场对构件的强度和寿命起着重要的作用。因此，有一个快速，可靠的，可能是非破坏性的方法来确定它们的可用性极大的兴趣。在这种情况下，X射线衍射方法在技术实践和科学研究中发挥着重要作用。它们基于晶格应变的确定，并应用胡克定律和适当的弹性常数来确定残余应力。在本文中-经过一个简短的调查的基本原则-特征的能量分辨方法的实验室应用相比，角度分辨方法的概述。给出了相应的测量装置和特征实例，以证明该方法的可能性和局限性。
Abstract It is well known that existing residual stress fields play an important role for strength and lifetime of components. Consequently there is a great interest in the availability of fast, reliable and possibly nondestructive methods for their determination. In this context, X-ray diffraction methods play an important role in technical practice as well as in scientific research. They are based on the determination of lattice strains from which residual stresses are determined applying Hooke's law with appropriate elastic constants. In this paper – after a short survey of the basic principles – characteristic features of energy resolved methods for laboratory applications compared with angle resolved methods are outlined. A corresponding measuring device is presented and characteristic examples are given to demonstrate the possibilities and limitations of the method.