ESTIMATION METHOD OF X-RAY PARAMETER OF METAL COMPONENT AND FATIGUE LEVEL ACQUISITION METHOD OF METAL COMPONENT
To provide an estimation method which can accurately estimate an initial value of an X-ray parameter of a metal component.SOLUTION: An estimation method includes: (a) a step for acquiring a range of a depth at which material quality is homogenized by using a metal component 2 which has not been subj...
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Zusammenfassung: | To provide an estimation method which can accurately estimate an initial value of an X-ray parameter of a metal component.SOLUTION: An estimation method includes: (a) a step for acquiring a range of a depth at which material quality is homogenized by using a metal component 2 which has not been subjected to a surface treatment yet; (b) a step for acquiring a depth at which X-ray parameters of second surfaces 2b, 2c which are not fatigued by a use receive influence of the surface treatment by using an unused metal component 2 which has been subjected to the surface treatment; (c) a step for acquiring a variation amount of an X-ray parameter of a first surface 2a which is influenced by the surface treatment by using the unused metal component 2 which has been subjected to the surface treatment; (d) a step for measuring an X-ray parameter of a deep region deeper than a depth which is acquired in the step (b) within a range which is acquired in the step (a) at the second surfaces 2b, 2c of a used metal component 2; and (e) a step for estimating an initial value of the X-ray parameter of the first surface 2a by reflecting the variation amount acquired in the step (c) to the X-ray parameter which is measured in the step (d).SELECTED DRAWING: Figure 8
【課題】金属部品のX線パラメータの初期値を精度よく推定することができる推定方法を提供する。【解決手段】推定方法は、(a)表面加工前の金属部品2を用いて材質が均一となる深さの範囲を取得するステップ、(b)表面加工後の未使用の金属部品2を用いて使用により疲労しない第2の表面2b,2cのX線パラメータが表面加工の影響を受ける深さを取得するステップ、(c)表面加工後の未使用の金属部品2を用いて表面加工の影響による第1の表面2aのX線パラメータの変動量を取得するステップ、(d)使用後の金属部品の第2の表面2b,2cにおいてステップ(a)で取得された範囲内でかつステップ(b)で取得された深さよりも深い領域のX線パラメータを測定するステップ、及び(e)ステップ(d)で測定されたX線パラメータにステップ(c)で取得された変動量を反映させて第1の表面2aのX線パラメータの初期値を推定するステップを含む。【選択図】図8 |
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