Development of high-strength steel line pipe for SBD applications

被引：0

作者：

Shinohara, Yasuhiro ^{[1
]}

Tsuru, Eiji ^{[1
]}

Asahi, Hitoshi ^{[1
]}

Hara, Takuya ^{[2
]}

Terada, Yoshio ^{[2
]}

Doi, Naoki ^{[3
]}

Ayukawa, Naoshi ^{[3
]}

Murata, Masahiko ^{[4
]}

机构：

[1] Nippon Steel Corp Ltd, Tech Dev Bur, Futtsu, Chiba 29912, Japan

[2] Nippon Steel Corp Ltd, Kimitsu R&D Lab, Kimitsu City, Chiba, Japan

[3] Nippon Steel Corp Ltd, Kimitsu Works, Kimitsu City, Chiba, Japan

[4] Nippon Steel Corp Ltd, Pipe & Tube Sales Div, Tokyo, Japan

来源：

INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING | 2008年 / 18卷 / 03期

关键词：

line pipe; UOE pipe; high-strength steel; deformability; toughness; thermal aging;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A strain-based design (SBD) has been widely discussed in recent years. Line pipes for the design applications are required to have high deformability as well as toughness and weldability. We studied how to simultaneously improve toughness and deformability in high-strength steel line pipes through laboratory work. A dual-phase (bainite/ferrite) microstructure was effective, and the optimized volume fraction and grain size of polygonal ferrite were confirmed. In addition, we revealed that the accelerated cooling condition in hot rolling absolutely correlated with thermal aging during anti-coating treatment. Based on the experimental results, we experimentally manufactured X80 UOE pipes for SBD.

引用

页码：220 / 225

页数：6

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