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Masayuki Sagara
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Proceedings Papers

Evaluation of the Surface on CRA After the Actual Exposure in Sour Gas Well

Masayuki SAGARA, Masaki Ueyama, Hisashi Amaya, Yuhei Suzuki, Takashi Doi
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12946
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Proceedings Papers

Nickel-Based Alloy, UNS N06845, With Superior Localized Corrosion Resistance for Sour Environment

Masayuki Sagara, Masaki Ueyama, Tomohiko Omura, Yuhei Suzuki, Yusaku Tomio, Hisashi Amaya
Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10810
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View Paper titled, Nickel-Based Alloy, UNS N06845, With Superior Localized Corrosion Resistance for Sour Environment
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Proceedings Papers

Effect of Alloying Elements on Naphthenic Acid Corrosion Resistance of 18Cr Austenitic Stainless Steels

Masahiro Seto, Takahiro Osuki, Masayuki Sagara, Toshihide Ono
Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9057
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View Paper titled, Effect of Alloying Elements on Naphthenic Acid Corrosion Resistance of 18Cr Austenitic Stainless Steels
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Proceedings Papers

Study on Effect of Buffer Capacity on Corrosion Performance of CRAs in Simulated Well Condition

Masayuki Sagara, Daisuke Matsuo, Akiko Tomio, Hisashi Amaya
Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9283
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View Paper titled, Study on Effect of Buffer Capacity on Corrosion Performance of CRAs in Simulated Well Condition
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Proceedings Papers

Evaluation of Susceptibility to Hydrogen Embrittlement of High Strength Corrosion Resistant Alloys

Masayuki Sagara, Yusaku Tomio, Yohei Otome, Naoki Sawawatari, Tomohiko Omura, Hisashi Amaya
Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7847
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View Paper titled, Evaluation of Susceptibility to Hydrogen Embrittlement of High Strength Corrosion Resistant Alloys
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Proceedings Papers

Corrosion Performances of Modified Grade-Duplex Stainless Steel for Line Pipe Usage in Slightly Sour Environment

Masayuki Sagara, Akiko Tomio, Jun Nakamura, Hidenori Shitamoto, Kenta Yamada, Daisuke Motoya, Hideki Takabe, Hisashi Amaya, Kazuhiro Ogawa, Masakatsu Ueda
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5703
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View Paper titled, Corrosion Performances of Modified Grade-Duplex Stainless Steel for Line Pipe Usage in Slightly Sour Environment
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Proceedings Papers

Estimation of Buffer Capacity in Various Solution for Simulated Well Condition

Masayuki Sagara, Daisuke Matsuo, Akiko Tomio, Natalia Hisashi Amaya
Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4016
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View Paper titled, Estimation of Buffer Capacity in Various Solution for Simulated Well Condition
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Proceedings Papers

New Duplex Stainless Steel for Line Pipe Material in Slightly Sour Environment

Masayuki Sagara, Shinjiro Nakatsuka, Daisuke Motoya, Hisashi Amaya, Masakatsu Ueda, Akiko Nishimura, Kenta Yamada, Hideki Takabe, Kazuhiro Ogawa
Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2561
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View Paper titled, New Duplex Stainless Steel for Line Pipe Material in Slightly Sour Environment
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Proceedings Papers

Excellent Corrosion Resistance of New Ni Alloy (UNS N06845) with Copper for Chemical Plants.

Masaki Ueyama, Masayuki Sagara, Satoshi Matsumoto
Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2439
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View Paper titled, Excellent Corrosion Resistance of New Ni Alloy (UNS N06845) with Copper for Chemical Plants.
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Proceedings Papers

Development Of Cost-Effective Ni Alloy Octg Material For Sour Environment

Masayuki Sagara, Akiko Nishimura, Masaki Ueyama, Hisashi Amaya, Masakatsu Ueda, Takeo Kudo
Paper presented at the CORROSION 2012, March 11–15, 2012
Paper Number: NACE-2012-1684
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View Paper titled, Development Of Cost-Effective Ni Alloy Octg Material For Sour Environment
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Proceedings Papers

Development of High-strength Ni Alloy OCTG Material For Sour Environment

Masayuki Sagara, Yohei Otome, Hisashi Amaya, Shigemitsu Kimura, Masaaki Igarashi, Masakatsu Ueda
Paper presented at the CORROSION 2011, March 13–17, 2011
Paper Number: NACE-11109
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View Paper titled, Development of High-strength Ni Alloy OCTG Material For Sour Environment
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Proceedings Papers

Effect Of Variation Of Local Ph On Stress Corrosion Cracking Of Stainless Steels In High Concentration Brines

Hisashi Amaya, Masakatsu Ueda, Masayuki Sagara, Kazuhiko Noda
Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07096
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View Paper titled, Effect Of Variation Of Local Ph On Stress Corrosion Cracking Of Stainless Steels In High Concentration Brines
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Proceedings Papers

Effect of pH and Activity Coefficient of Proton in High Concentration Brines on Stress Corrosion Cracking of Stainless Steels

Hisashi Amaya, Takeo Kudo, Masakatsu Ueda, Masayuki Sagara, Kazuhiko Noda
Paper presented at the CORROSION 2005, April 3–7, 2005
Paper Number: NACE-05458
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View Paper titled, Effect of pH and Activity Coefficient of Proton in High Concentration Brines on Stress Corrosion Cracking of Stainless Steels
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Proceedings Papers

Stress Corrosion Cracking Sensitivity of Super Martensitic Stainless Steels in High Chloride Concentration Environment

Hisashi Amaya, Kunio Kondo, Kazuhiro Ogawa, Masakatsu Ueda, Tsuneo Murase, Hiroyuki Hirata, Akira Taniyama, Masayuki Sagara, Hideki Takabe
Paper presented at the CORROSION 2004, March 28–April 1, 2004
Paper Number: NACE-04124
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View Paper titled, Stress Corrosion Cracking Sensitivity of Super Martensitic Stainless Steels in High Chloride Concentration Environment
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