单晶材料X射线应力测定原理与方法
Principle and Methods of X-ray Residual Stress Measurement on Single Crystal Material
摘 要
结合单晶X射线应力测定基本原理, 通过必要的理论分析, 对现有单晶应力测定方法进行必要的改进和优化。基于工程实际应用需要, 精简了单晶应力测定步骤并拓宽其应用范围, 即不需要事先精确已知2θ0, 只需改变空间方位角ψ和φ, 再通过多元线形回归分析方法即可计算出各应力分量。最后给出了单晶应力测定的典型实例, 即对同一部位重复测定应力, 证实测量误差不超过±20 MPa, 说明该方法具有较高的测量精度和可靠性。
X射线衍射
残余应力测定
single crystal material
X-ray diffraction
residual stress measurement
Abstract
Combined the basic principle of X-ray residual stress measurement on single crystal material, through the necessary theoretical analysis, the monocrystalline stress measurement method has been improved and optimized successfully. Considering the application demand on engineering, the stress measurement procedure for single crystal material was simplified and the scope of application was broadened. Namely, not need to accurately determine the 2θ0 beforehand, only need to change the spatial azimuth angle ψ and φ, the stress components can be calculated via multiple linear regression analysis method. Finally, the typical examples of stress measurement on single crystal material were given. Repeated stress measurement on the same site, the experimental results showed that the measuring error was not more than ±20 MPa, which indicated that having higher measurement precision and reliability.
中图分类号 TB302
所属栏目 试验与研究
基金项目 国家自然科学基金资助项目(50771066)
收稿日期 2011/2/17
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备注陈艳华(1979-), 女, 博士研究生。
引用该论文: CHEN Yan-hua,XU Qing,JIANG Chuan-hai,JI Ning. Principle and Methods of X-ray Residual Stress Measurement on Single Crystal Material[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2012, 48(3): 144～1147
陈艳华,须庆,姜传海,嵇宁. 单晶材料X射线应力测定原理与方法[J]. 理化检验－物理分册, 2012, 48(3): 144～1147
被引情况:
【1】万鑫,詹科,姜传海, "X射线衍射方法分析粗晶铁硅合金的残余应力",机械工程材料 38, 95-99(2014)
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参考文献
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【2】张定铨,何家文.材料中残余应力的X射线衍射分析和作用[M].西安: 西安交通大学出版社,1999.
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【5】AKITA Koichi, MIYAKAWA Toshiki, KAKEHI Koji, et al. X-ray stress measurement of nickel-base superalloy single crystals[C]//Proc of 5th Int Conf on Residual Stresses.Sweden:[s.n.],1997:709.
【6】YOSHIOKA Yasuo, OHYA Shin-ichi, SUYAMA Yujiro. Residual stress analysis in a crystal grain by using imaging plate[C]// Proc of 5th Int Conf on Residual Stresses. Sweden:[s.n.],1997:528.
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