IN-SITU OBSERVATION AT SURFACE AND INTERFACE WITH LOCALIZED CORROSION PROCESS BY MEANS OF MICRO-RAMAN SPECTROSCOPY -SECM-AFM SYSTEM
IN-SITU OBSERVATION AT SURFACE AND INTERFACE WITH LOCALIZED CORROSION PROCESS BY MEANS OF MICRO-RAMAN SPECTROSCOPY -SECM-AFM SYSTEM
批准号:
07455283
负责人:
MISAWA Toshihei
金额:
$4.48万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
1995
资助国家:
日本
项目状态:
已结题
起止时间:
1995 至 1996
中文摘要
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英文摘要
We have successfully performed in-situ observation of the localized distribution of reaction species of H^+ and Cl^- in microscopic region (1mum*emum) focused on the electrolyte solution side and identifying precursor sites for pitting on the substrate surface of austenitic stainless steels with different corrosion resistance by using the three modes of modified scanning electrochemical microscopy (SECM). Using in-situ Raman spectroscopy nitrate ions at the pit precursor region are identified for the first time. Tritium E.M.autoradiography and hydrogen content measurement are carried out to examine the effect of boron addition on the behavior of hydrogen segregation at the grain boundary in Ni_3 (Si, Ti) intermetallic.
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H.Saitoh: "Suppression of hydrogen segregation at grain boundary by boron addition in Ll_2-type Ni_3(Si,Ti)allov" J.Mater.Sci.Lett.15. 1297-1299 (1996)
H.Saitoh:“通过在 Ll_2 型 Ni_3(Si,Ti)allov 中添加硼来抑制晶界处的氢偏析”J.Mater.Sci.Lett.15。
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H.Tanabe: "Cathodic behavior of boron and chromium added Ni_3 (Si,Ti) intermetallics having high resistance to hydrogen-induced embrittlement" Intermetallics. 4(印刷中). (1996)
H.Tanabe:“具有高抗氢致脆性的硼和铬添加的 Ni_3 (Si,Ti) 金属间化合物的阴极行为”金属间化合物 4(出版中)。
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T.Misawa: "In-situ observation of dynamic reacting species at pit precursors of N-bearing austenitic stainless steels" ISIJ International. 36・7. 787-792 (1996)
T. Misawa:“含氮奥氏体不锈钢坑前体动态反应物种的现场观察”ISIJ International 36・7(1996)。
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H.Saitoh: "Suppression of hydrogen segregation at grain boundary by boron addition in Ll_2-type Ni_3 (Si, Ti) alloy" J. Mater. Sci. Lett.15. 1297-1299 (1996)
H.Saitoh:“Ll_2 型 Ni_3 (Si, Ti) 合金中添加硼对晶界氢偏析的抑制”J. Mater。
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H.Saitoh: "Hydrogen distribution in Co_3Ti intermetallic compound by tritium electron microautoradiography" J. Mater. Sci. Lett.15. 23-25 (1996)
H.Saitoh:“氚电子显微放射自显影法在 Co_3Ti 金属间化合物中的氢分布”J. Mater。
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共 19 条
In-Situ Observation on Localized Corrosion of Corrosion - Resistant Alloys by Using Micro-Electrode / Raman Scattering / Ion Chromatography System
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批准号:11450267
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$8.83万
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财政年份:1999
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负责人:MISAWA Toshihei
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依托单位:
Development of Dynamic/Quasi-Static Fracture Toughness Testing Apparatus Using Miniaturized Specimens and Application to Evaluation of Local Toughness in Materials
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批准号:10555224
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项目类别:Grant-in-Aid for Scientific Research (B).
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资助金额:$7.49万
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财政年份:1998
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负责人:MISAWA Toshihei
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依托单位:
ENVIRONMENTAL STRENGTH OF TRIP STEELS WITH RETAINED AUSTENITE POSSESSING HIGH DUCTILITY AND HYDROGEN-EMBRITTLEMENT RESISTANCE.
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批准号:05650664
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项目类别:Grant-in-Aid for General Scientific Research (C)
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资助金额:$1.41万
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财政年份:1993
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负责人:MISAWA Toshihei
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依托单位:
海外基金