JP5974650B2 - 結晶粒異方性判定方法 - Google Patents
結晶粒異方性判定方法 Download PDFInfo
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- JP5974650B2 JP5974650B2 JP2012131433A JP2012131433A JP5974650B2 JP 5974650 B2 JP5974650 B2 JP 5974650B2 JP 2012131433 A JP2012131433 A JP 2012131433A JP 2012131433 A JP2012131433 A JP 2012131433A JP 5974650 B2 JP5974650 B2 JP 5974650B2
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Claims (2)
- 被測定材中に超音波を発振し、受振された反射波のうちから所定時間範囲の反射波を取り出して、取り出した反射波の周波数分析を行い、全周波数の反射波パワーの合計値に対する所定周波数以上の反射波パワーの合計値の割合に基づいて前記被測定材の結晶粒が細長く延びる結晶粒異方性を生じているか否かを判定することを特徴とする結晶粒異方性判定方法。
- 前記全周波数の反射波パワーの合計値より前記被測定材の結晶粒径を検出する請求項1に記載の結晶粒異方性判定方法。
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JP5974650B2 true JP5974650B2 (ja) | 2016-08-23 |
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JP7314726B2 (ja) * | 2018-11-19 | 2023-07-26 | 大同特殊鋼株式会社 | 結晶組織評価方法および結晶組織評価装置 |
JP7196581B2 (ja) * | 2018-12-10 | 2022-12-27 | 大同特殊鋼株式会社 | 被検査材の組織検査方法 |
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JPS61181957A (ja) * | 1985-02-08 | 1986-08-14 | Hitachi Ltd | 金属材料検査装置 |
JP2961833B2 (ja) * | 1990-08-13 | 1999-10-12 | 石川島播磨重工業株式会社 | 結晶粒度測定方法 |
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