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首页> 外文会议>Advances in X-ray analysis (ICDD2001) >SIGNIFICANCE OF EXPERIMENTAL ERRORS IN RESIDUAL STRESS DETERMINATIONS USING Θ:Θ DIFFRACTOMETERS
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SIGNIFICANCE OF EXPERIMENTAL ERRORS IN RESIDUAL STRESS DETERMINATIONS USING Θ:Θ DIFFRACTOMETERS

机译：使用Θ：Θ差示光度法确定残余应力的实验误差的意义

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摘要

The restriction of the θ:θ diffractometers to tilt angles less than 40°, when measuring residualrnstress, can be overcome by rotating the specimen through an offset angle and recalibrating thernzero points of the Ω and θ scales. The effectiveness of this offset is examined by measuring thernresidual stress in a PVD film of TiN deposited on a stainless steel substrate. An anticipated errorrnassociated with backlash in the gear as the detector, or X-ray tube, is traversed beyond the 90°rnvertical position, is shown to be insignificant. Temperature dependent measurements of residualrnstress in a cold worked specimen of Kanthal D heating alloy show that errors as great as 20%rnmay result from the use of room temperature elastic constants, when making non-ambient
机译：当测量残余应力时，可以通过将样品旋转一个偏置角并重新校准Ω和θ标尺的零点来克服θ：θ衍射仪对小于40°倾斜角的限制。通过测量沉积在不锈钢基板上的TiN的PVD膜中的残余应力，可以检查这种偏移的有效性。当检测器或X射线管在垂直位置超过90°时，与齿轮中的游隙相关的预期误差被显示为微不足道。与温度有关的Kanthal D加热合金冷加工样品中残余应力的测量结果表明，在室温下进行非环境测量时，使用室温弹性常数可能会导致高达20％rn的误差。

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  • 来源
  • 会议地点 Steamboat Springs CO(US);Steamboat Springs CO(US);Steamboat Springs CO(US)
  • 作者

    H.W. King; S.H. Ferguson; S. Gursan; M. Yildiz;

  • 作者单位

    Department of Mechanical Engineering University of Victoria Victoria, BC, V8W 3P6, Canada;

    rnDepartment of Mechanical Engineering University of Victoria Victoria, BC, V8W 3P6, Canada;

    rnDepartment of Mechanical Engineering University of Victoria Victoria, BC, V8W 3P6, Canada;

    rnDepartment of Mechanical Engineering University of Victoria Victoria, BC, V8W 3P6, Canada;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 X射线、紫外线、红外线;
  • 关键词

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