JP4124054B2 - 応力腐食割れ導入方法 - Google Patents
応力腐食割れ導入方法 Download PDFInfo
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- JP4124054B2 JP4124054B2 JP2003290340A JP2003290340A JP4124054B2 JP 4124054 B2 JP4124054 B2 JP 4124054B2 JP 2003290340 A JP2003290340 A JP 2003290340A JP 2003290340 A JP2003290340 A JP 2003290340A JP 4124054 B2 JP4124054 B2 JP 4124054B2
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Description
14 肉盛溶接部
15、16 予き裂
17 応力付与部
24 露出部
Claims (3)
- 一対の管状の母材の端部同士を突き合わせて溶接してなる試験体に応力腐食割れを導入する方法において、上記試験体の溶接部の外周面を覆うように肉盛溶接部を形成し、該肉盛溶接部上に上記試験体の軸方向に延びる予き裂を形成し、上記肉盛溶接部に、上記予き裂を挟むように上記試験体の周方向に間隔を隔てて一対の板状部材を取り付け、上記予き裂が形成された上記肉盛溶接部を腐食環境に保持し、この状態で上記一対の板状部材に上記試験体の周方向に離間する方向に力を加えて上記肉盛溶接部に応力を付与することにより上記予き裂から進展して上記試験体の上記溶接部に達する擬似的な応力腐食割れを生成し、その後上記一対の板状部材及び上記肉盛溶接部を上記試験体から除去することを特徴とする応力腐食割れ導入方法。
- 上記予き裂は、放電加工により形成されたき裂である、又は、上記予き裂は、放電加工によりき裂を形成し、その後、上記試験体に応力を付与し上記き裂を進展させたものである請求項1に記載の応力腐食割れ導入方法。
- 上記板状部材により上記肉盛溶接部に応力を付与する際に、擬似的な応力腐食割れを生じさせる上記試験体の溶接部を跨ぐ電位を計測し、この電位の低下により応力腐食割れの導入開始を判定する請求項1又は2に記載の応力腐食割れ導入方法。
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JP2003290340A JP4124054B2 (ja) | 2003-08-08 | 2003-08-08 | 応力腐食割れ導入方法 |
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JP2003290340A JP4124054B2 (ja) | 2003-08-08 | 2003-08-08 | 応力腐食割れ導入方法 |
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JP2005061914A JP2005061914A (ja) | 2005-03-10 |
JP4124054B2 true JP4124054B2 (ja) | 2008-07-23 |
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JP2003290340A Expired - Fee Related JP4124054B2 (ja) | 2003-08-08 | 2003-08-08 | 応力腐食割れ導入方法 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4830907B2 (ja) * | 2007-02-28 | 2011-12-07 | 株式会社Ihi | 応力腐食割れ付与試験体製造方法 |
JP4862696B2 (ja) * | 2007-03-06 | 2012-01-25 | 株式会社Ihi | 応力腐食割れ付与試験体製造方法 |
JP4929062B2 (ja) * | 2007-06-05 | 2012-05-09 | 三菱重工業株式会社 | 試験体及び試験体の製造方法 |
CN113092349A (zh) * | 2021-03-31 | 2021-07-09 | 东风汽车集团股份有限公司 | 聚碳酸酯材质汽车零件应力开裂问题检测方法 |
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