Investigation on Boronizing of N80 Tube Steel
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概要
- 論文の詳細を見る
In present paper, boronizing was applied to N80 steel tube by pack boronizing, and its effect on mechanical properties, wear and corrosion of N80 tube steel was investigated. A dual-phase boride layer composed of FeB and F2B phases was formed on the surface of the steel substrate in a hardness range of 1220–1340 HV. A set-up was designed to reduce usage of the boriding agent and accelerate the pipes cooling process after boronizing treatment. In order to meet the tensile properties of N80 steel required by API SPEC 5L, different cooling methods were employed including annealing, normalizing, fan-cooling and graphite-bar assisted rapid cooling. Among these methods, graphite-bar assisted rapid cooling resulted in the highest amount of pearlite in the steel substrate and the highest mechanical properties, satisfying the mechanical properties of API SPEC 5L. The boronized N80 steel exhibited an abrasive wear mechanism and showed a higher wear resistance under a given sliding condition due to the great hardness and integrity of the boride layer, and it also displayed an excellent corrosion resistance in both H2SO4 and HCl acid environments.
- 社団法人 日本鉄鋼協会の論文
- 2009-11-15
著者
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Su Z.
Key Laboratory of Automobile Materials, Ministry of Education, Department of Materials Science and E
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Tian X.
Key Laboratory Of Automobile Materials Ministry Of Education Department Of Materials Science And Eng
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An J.
Key Lab. Of Automobile Materials Ministry Of Education Dep. Of Materials Sci. And Engineering Nanlin
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LU Y.
Key Laboratory of Automobile Materials, Ministry of Education, Department of Materials Science and E
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YANG Y.
Songyuan Daduo Oilfield Accessory Industry Co. Ltd.
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SUN S.
Songyuan Daduo Oilfield Accessory Industry Co. Ltd.
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Su Z.
Key Lab. Of Automobile Materials Ministry Of Education Dep. Of Materials Sci. And Engineering Nanlin
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- Comparative Studies on Friction and Wear Performance between Glass-fiber Reinforced Polyamide 66 Composite and Ductile Irons on Ceramic Al_2O_3 Counterface in Sucker Rod Centralizer Application
- Investigation on Boronizing of N80 Tube Steel