JP6357426B2 - 金属材料中の歪み計測方法 - Google Patents
金属材料中の歪み計測方法 Download PDFInfo
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- JP6357426B2 JP6357426B2 JP2015003577A JP2015003577A JP6357426B2 JP 6357426 B2 JP6357426 B2 JP 6357426B2 JP 2015003577 A JP2015003577 A JP 2015003577A JP 2015003577 A JP2015003577 A JP 2015003577A JP 6357426 B2 JP6357426 B2 JP 6357426B2
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Description
金属材料中に発生する歪みを計測する方法であって、
金属材料の表面を露出させる第1ステップと、
該金属材料表面に、参照材料層を形成する第2ステップと、
該金属材料表面を観察する第3ステップと、
前記金属材料に外的応力を加える第4ステップと、
該金属材料表面を観察する第5ステップと、
前記第3ステップで観察された像と前記第5ステップで観察された像との差により前記参照材料層の水平移動距離を算出する第6ステップとを有し、
前記参照材料層は、前記金属材料表面の所定領域の20面積%以上、80面積%以下を覆うものであることを特徴とする。
Claims (3)
- 金属材料中に発生する歪みを計測する方法であって、
金属材料の表面を露出させる第1ステップと、
該金属材料表面に、参照材料層を形成する第2ステップと、
該金属材料表面を観察する第3ステップと、
前記金属材料に外的応力を加える第4ステップと、
該金属材料表面を観察する第5ステップと、
前記第3ステップで観察された像と前記第5ステップで観察された像との差により前記参照材料層の水平移動距離を算出する第6ステップとを有し、
前記参照材料層は、複数の島を有しており、島の平均面積は、金属組織中の結晶粒または相の面積に対して、40面積%以下であり、かつ、前記金属材料表面の観察領域の20面積%以上、80面積%以下を覆うものであることを特徴とする金属材料中の歪み計測方法。 - 前記参照材料層は、集束イオンビーム法によって形成されたものである請求項1に記載の金属材料中の歪み計測方法。
- 前記参照材料層を形成する素材は、白金、タングステンまたは炭素のいずれかである請求項1または2に記載の金属材料中の歪み計測方法。
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Families Citing this family (2)
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JP6913015B2 (ja) * | 2017-12-26 | 2021-08-04 | Toyo Tire株式会社 | ゴム材料の変形解析方法 |
JP7027159B2 (ja) * | 2017-12-26 | 2022-03-01 | Toyo Tire株式会社 | ゴム材料の変形解析方法 |
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JP2995298B1 (ja) * | 1998-11-20 | 1999-12-27 | 科学技術庁金属材料技術研究所長 | 変形測定法と変形測定用グリッドシ―ト |
JP4864754B2 (ja) * | 2007-02-08 | 2012-02-01 | 新日本製鐵株式会社 | 引張り試験方法及び装置 |
JP5429864B2 (ja) * | 2009-07-24 | 2014-02-26 | 独立行政法人物質・材料研究機構 | 歪み計測用パターン |
US9568442B2 (en) * | 2013-05-24 | 2017-02-14 | Drexel University | Strain mapping in TEM using precession electron diffraction |
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