JP5612844B2 - 再熱割れ感受性の判定方法 - Google Patents
再熱割れ感受性の判定方法 Download PDFInfo
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- JP5612844B2 JP5612844B2 JP2009209874A JP2009209874A JP5612844B2 JP 5612844 B2 JP5612844 B2 JP 5612844B2 JP 2009209874 A JP2009209874 A JP 2009209874A JP 2009209874 A JP2009209874 A JP 2009209874A JP 5612844 B2 JP5612844 B2 JP 5612844B2
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/54—Performing tests at high or low temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0071—Creep
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
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- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Arc Welding In General (AREA)
Description
Claims (6)
- 溶接された領域(20)を含む少なくとも一つの材料のサンプル(26)の再熱割れ感受性を判定する方法であって、
前記サンプル(26)の長さを測定するステップと、
前記サンプル(26)に第1の応力を印加して、前記サンプル(26)の所定の伸びを実現するステップと、
前記伸びを達成したサンプル(26)に所定の熱処理を施すステップ(56)と、
前記サンプル(26)が少なくとも2つの異なる断片(30,40)に破断するまで、前記サンプル(26)に第2の応力を印加するステップと、
走査型電子顕微鏡を用いて、前記破断したサンプル(26)の少なくとも一つの破断面を分析して、割れ損傷の第1領域(E)及び急速破壊の第2領域(D)を識別し、その識別において、前記割れ損傷の第1領域(E)は、粒界純脆性割れ損傷の第3領域(F)を含むものを識別するステップと、
次の条件:前記第3領域(F)は、前記第1領域(E)の約0%を上回っていること、及び前記割れ損傷の第1領域(E)は、前記破断したサンプル(26)の破断面の全面積の約10%を上回っていることのうちの少なくとも一方が満たされ、前記破断したサンプル(26)は2.25Cr1Mo0.25Vの化学組成を有するときに、前記サンプルを再熱割れし易いと分類するステップと、
を含む方法。 - 前記熱処理は、
温度を上昇させる第1領域、一定温度の第2領域、温度を上昇させる第3領域、一定温度の第4領域、及び温度を低下させる第5領域を含む第1の熱処理と、
温度を上昇させる第1領域、一定温度の第2領域、及び温度を低下させる第3領域を含む第2の熱処理と、
第1の勾配で温度を上昇させる第1領域、第2の勾配で温度を上昇させる第2領域、第3の勾配で温度を低下させる第3領域、一定温度の第4領域、及び第4の勾配で温度を低下させる第5領域を含む第3の熱処理と、
のうちの一つを含む、請求項1に記載の方法。 - 溶接された材料(20)のみを含むように前記サンプル(26)を切断することを更に含む、請求項1または2に記載の方法。
- 前記サンプルの材料の粒子配向と平行に、前記サンプル(26)の表面を切断することを更に含む、請求項1乃至3のいずれか1項に記載の方法。
- 前記サンプルの平面に、歪みゲージ及び熱電対の少なくともいずれかを適用して、前記サンプルの歪み及び温度の少なくともいずれかを監視することを更に含む、請求項1乃至4のいずれか1項に記載の方法。
- 前記判定するステップは、
前記サンプルの少なくとも2つのセクションに請求項1のステップを適用するステップを更に含む、請求項1に記載の方法。
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9646308P | 2008-09-14 | 2008-09-14 | |
US61/096,463 | 2008-09-14 | ||
US9692608P | 2008-09-15 | 2008-09-15 | |
US61/096,926 | 2008-09-15 | ||
US12/329,744 | 2008-12-08 | ||
US12/329,744 US8186875B2 (en) | 2008-09-14 | 2008-12-08 | Method for determining reheat cracking susceptibility |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010110820A JP2010110820A (ja) | 2010-05-20 |
JP5612844B2 true JP5612844B2 (ja) | 2014-10-22 |
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Application Number | Title | Priority Date | Filing Date |
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JP2009209874A Expired - Fee Related JP5612844B2 (ja) | 2008-09-14 | 2009-09-11 | 再熱割れ感受性の判定方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8186875B2 (ja) |
EP (1) | EP2163881B1 (ja) |
JP (1) | JP5612844B2 (ja) |
KR (1) | KR101716492B1 (ja) |
CN (1) | CN101710038B (ja) |
CA (1) | CA2678327C (ja) |
RU (1) | RU2502061C2 (ja) |
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US8186875B2 (en) * | 2008-09-14 | 2012-05-29 | Nuovo Pignone S.P.A. | Method for determining reheat cracking susceptibility |
CN102371436A (zh) * | 2011-08-31 | 2012-03-14 | 上海锅炉厂有限公司 | 一种异种钢再热裂纹敏感性试验方法 |
JP5563169B1 (ja) * | 2013-01-25 | 2014-07-30 | 中国電力株式会社 | 距離測定システム、距離測定方法 |
FR3004808B1 (fr) * | 2013-04-22 | 2015-04-17 | Snecma | Procede d'analyse d'un facies de rupture d'une piece de turbomachine |
CN103418924B (zh) * | 2013-08-06 | 2015-07-08 | 中国石油大学(华东) | 精确模拟焊接接头的模块化阵列电极及其制备方法 |
JP6271403B2 (ja) * | 2013-12-03 | 2018-01-31 | 三菱日立パワーシステムズ株式会社 | 再熱割れ感受性評価方法及び再熱割れ抑制方法 |
CN103983506A (zh) * | 2014-05-27 | 2014-08-13 | 安徽工业大学 | 一种热模拟实验材料组织性能的检测方法 |
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CN107389445B (zh) * | 2017-06-02 | 2020-01-24 | 江阴兴澄特种钢铁有限公司 | 一种应力松弛试验评价材料再热裂纹敏感性的方法 |
CN109142081A (zh) * | 2018-06-29 | 2019-01-04 | 合肥通用机械研究院有限公司 | 一种钢材应力松弛裂纹敏感性评价方法 |
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-
2008
- 2008-12-08 US US12/329,744 patent/US8186875B2/en active Active
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- 2009-09-10 EP EP09169976.9A patent/EP2163881B1/en active Active
- 2009-09-10 CA CA2678327A patent/CA2678327C/en active Active
- 2009-09-11 CN CN200910205754.XA patent/CN101710038B/zh active Active
- 2009-09-11 JP JP2009209874A patent/JP5612844B2/ja not_active Expired - Fee Related
- 2009-09-14 RU RU2009134885/28A patent/RU2502061C2/ru active
- 2009-09-14 KR KR1020090086599A patent/KR101716492B1/ko active IP Right Grant
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EP2163881A2 (en) | 2010-03-17 |
EP2163881A3 (en) | 2014-08-06 |
KR101716492B1 (ko) | 2017-03-14 |
CA2678327C (en) | 2017-06-13 |
RU2502061C2 (ru) | 2013-12-20 |
US20100070203A1 (en) | 2010-03-18 |
CA2678327A1 (en) | 2010-03-14 |
EP2163881B1 (en) | 2021-04-21 |
RU2009134885A (ru) | 2011-03-20 |
US8186875B2 (en) | 2012-05-29 |
CN101710038B (zh) | 2014-05-07 |
KR20100031658A (ko) | 2010-03-24 |
CN101710038A (zh) | 2010-05-19 |
JP2010110820A (ja) | 2010-05-20 |
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