聚乙烯膜对样品残余应力测试的影响

ATOMIC ENERGY SCIENCE AND TECHNOLOGY(2001)

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Abstract
采用X2001应力分析仪测试了α-Fe和铍样品表面分别覆盖聚乙烯膜前后的残余应力,探讨了残余应力测试值变化的原因及其规律。样品表面覆盖聚乙烯膜后,由于校准距离D的增大,使得衍射峰向低角度方向偏移,从而引起应力实测值发生了改变。通过对应力实测值进行修正,可获得样品内的真实应力。
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