J784A-1971
Residual Stress Measurement by X-Ray Diffraction
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- 标准号
- J784A-1971
- 发布日期
- 1971年08月01日
- 实施日期
- 2008年01月26日
- 废止日期
- 2003-01-01
- 中国标准分类号
- /
- 国际标准分类号
- /
- 发布单位
- SAE - SAE International
- 引用标准
- 5
- 适用范围
- The predecessor of this manual was published in 1960 as SAE TR-182 (SAE J784) and was intended to bring together the most recent developments in x-ray techniques for residual stress measurements. At that time@ it was evident that the ability to reproduce results among different laboratories was lacking. In addition@ the disadvantages of film techniques@ particularly with regard to hard steels@ had been given much attention. Consequently@ the original manual covered almost exclusively diffractometer methods and recommended a fairly uniform technique based on two exposures and peak position determination by a three-point parabola.