Y<SUB>2</SUB>O<SUB>3</SUB>内標準X線回折法による鋼中析出物の簡易定量法

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タイトル別名
  • The Simple Determination Method of Precipitates in Steels by X-ray Diffraction Technique with Y<SUB>2</SUB>O<SUB>3</SUB> as Internal Standard Materials
  • Y2O3内標準X線回折法による鋼中析出物の簡易定量法
  • Y2O3 ナイヒョウジュン Xセン カイセツホウ ニ ヨル コウチュウ セキシ

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説明

The simply quantitative state analysis method of precipitates in steels has been established by X-ray diffraction technique with adding constant amount of Y2O3 as internal standard material.<BR>The procedure is as follows :<BR>(1)The residues extracted from steels by potentiostatic electrolysis are dispersed in methanol with 100 ml beaker.<BR>(2)5.0 ml of Y2O3 dispersing solution (50 mg/250 ml methanol) is added in above mentioned solution and after that this solution is dispersed by ultrasonic vibration.<BR>(3)This solution is filtrated and the residues are collected on filter.<BR>(4)The X-ray diffraction pattern of residues is measured and its peak intensity ratios of precipitates to Y2O3 are calculated. The amount of precipitates are determined from these peak intensity ratios by calibration curves, which are preliminaly made from relation between peak intensity ratio and the amount of precipitates.<BR>This method can simply estimate state of precipitates quantitatively compared with conventional extracted residues decomposition method.

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  • 鉄と鋼

    鉄と鋼 77 (11), 2027-2032, 1991

    一般社団法人 日本鉄鋼協会

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